Micro Vickers Hardness Tester – Digital & Computerized Microhardness Testing Machine

Frequently Asked Questions (FAQs)

Q1. What is a Micro Vickers Hardness Tester?

A Micro Vickers Hardness Tester is a precision instrument used to measure the hardness of small components, thin sections, coatings, and materials where conventional hardness testing loads may be too high. It uses a diamond pyramid indenter and controlled low test loads to create a measurable indentation.

​

Q2. How does a Computerized Micro Vickers Hardness Tester work?

A Computerized Micro Vickers Hardness Tester applies the selected test load automatically and uses an optical camera or imaging system to capture the indentation. The software measures the indentation diagonals and calculates the Vickers Hardness Number (HV), reducing manual measurement errors and making testing faster.

​

Q3. What materials can be tested using a Micro Vickers Hardness Tester?

A Micro Vickers Hardness Tester can be used for many metallic and non-metallic applications, including steel, aluminium, copper, brass, alloys, ceramics, coatings, electronic components, and other small or thin specimens. The appropriate test load depends on the material and application.

​

Q4. What is the difference between Vickers and Micro Vickers Testing?

The main difference is the test-load range and application. Conventional Vickers testing generally uses higher loads, while Micro Vickers testing uses much lower loads, making it suitable for thin sections, small components, surface layers, coatings, and localized hardness measurements.

​

Q5. How often should a Micro Vickers Hardness Tester be calibrated?

The calibration interval depends on equipment usage, laboratory procedures, applicable standards, and quality-system requirements. Many laboratories schedule calibration at regular intervals such as 6 or 12 months, while additional verification may be required if the machine is moved, repaired, or shows abnormal results.

​

Q6. What is a Micro Vickers Hardness Tester used for?

Micro Vickers hardness testing is used when hardness needs to be measured over a very small area. Typical applications include thin coatings, case-hardened components, weld zones, heat-treated parts, small components, electronics, metallographic specimens, and research samples.

​

Q7. Can a Micro Vickers Hardness Tester test small samples?

Yes. One of the major advantages of a Micro Vickers Hardness Tester is its ability to test relatively small specimens and localized areas. The low test loads and small indentation make it useful when the available test area is limited.

​

Q8. What test loads are available on a Micro Vickers Hardness Tester?

The available test load depends on the model and configuration. Micro Vickers instruments commonly operate with low loads specified in gram-force (gf) or kilogram-force (kgf). A suitable machine should provide the load range required for the materials and applications being tested.

​

Q9. What is the typical test load range of a Micro Vickers Hardness Tester?

Micro Vickers testing generally covers low forces ranging from gram-force levels up to around 1 kgf, depending on the instrument. The exact load range should always be checked against the manufacturer's specifications and the applicable testing standard.

​

Q10. What is a Digital Micro Vickers Hardness Tester?

A Digital Micro Vickers Hardness Tester combines controlled hardness testing with a digital display or electronic measurement system. Depending on the configuration, it can display test parameters and hardness results digitally, making operation and result recording more convenient.

​

Q11. What is a Computerized Micro Vickers Hardness Tester?

A Computerized Micro Vickers Hardness Tester uses computer-based software and an optical imaging system to assist with indentation measurement and hardness calculation. Advanced systems can also store test results, generate reports, and maintain testing data for quality-control purposes.

​

Q12. What is a Micro Vickers Hardness Tester with image analysis software?

It is a microhardness testing system in which a camera captures the diamond indentation and image-analysis software identifies and measures the indentation diagonals. The software then calculates the hardness value based on the measured dimensions and selected test load.

​

Q13. What are the benefits of a Micro Vickers Hardness Tester with a camera?

A camera-based system allows the indentation to be viewed and measured on a computer screen. This can improve measurement consistency, simplify documentation, reduce dependence on manual microscope readings, and make it easier to review or store test images and results.

​

Q14. When should Micro Vickers Hardness Testing be used?

Micro Vickers testing is particularly useful when the test area is small or when applying a conventional hardness load could damage the specimen. It is commonly selected for thin materials, coatings, small components, metallographic samples, and localized hardness evaluation.

​

Q15. Can a Micro Vickers Hardness Tester be used for thin film or coating hardness testing?

Yes, microhardness testing can be useful for evaluating hardness of thin surface layers and coatings when the test conditions are selected appropriately. Test load, coating thickness, substrate influence, indentation depth, and spacing between indentations should be considered when planning the test.

​

Q16. Which Micro Vickers Hardness Tester is suitable for thin coatings?

For thin coatings, a tester capable of applying accurately controlled low loads and providing clear optical measurement is generally preferred. The test method should also be selected according to the coating thickness and the relevant testing standard to minimize the influence of the substrate.

​

Q17. What is the difference between a Micro Vickers and a Microhardness Tester?

Micro Vickers is a specific microhardness testing method that uses a Vickers diamond indenter. The term Microhardness Tester is broader and may refer to equipment designed for low-load hardness testing using methods such as Vickers or, depending on the instrument, Knoop.

​

Q18. What is the difference between a Micro Vickers Hardness Tester and a Universal Hardness Tester?

A Micro Vickers Hardness Tester is designed primarily for low-load Vickers hardness measurements on small areas and thin specimens. A Universal Hardness Tester can support a wider range of hardness-testing methods and loads, depending on its configuration.

​

Q19. What is the difference between Micro Vickers and Rockwell hardness testing?

Micro Vickers testing uses a diamond pyramid indenter and low test forces, making it suitable for small areas and thin sections. Rockwell testing uses specified indenter types and comparatively higher loads and determines hardness primarily from indentation depth.

​

Q20. What is the difference between Micro Vickers and Knoop hardness testing?

Both are commonly used for low-load hardness measurements, but they use different diamond indenter geometries. The Vickers indenter produces a square-based indentation, while the Knoop indenter produces an elongated indentation. The appropriate method depends on the specimen and testing requirement.

​

Q21. What is the Vickers hardness formula?

The Vickers hardness number is calculated from the applied test force and the average length of the two indentation diagonals. The commonly used relationship is:

HV = 1.8544 × F / d²

where F is the test force in kgf and d is the average diagonal length of the indentation in millimetres.

​

Q22. How do you calculate the Vickers Hardness Number?

After applying the selected test load, the two diagonals of the diamond-shaped indentation are measured. Their average is used with the applied force in the Vickers hardness formula to determine the hardness number, normally reported as HV.

​

Q23. How do you read a Vickers hardness indentation?

A Vickers indentation appears approximately square when viewed through the microscope or camera. The two diagonals are measured and averaged. Accurate focusing, suitable illumination, a clean specimen surface, and clear indentation edges are important for reliable measurements.

​

Q24. What standards are used for Micro Vickers hardness testing?

Micro Vickers hardness testing is commonly performed according to applicable standards such as ASTM E384 and ISO 6507, depending on the material, test method, and laboratory requirements. The relevant standard should be selected based on the intended application.

​

Q25. Is ASTM E384 applicable to Micro Vickers hardness testing?

Yes. ASTM E384 covers microindentation hardness testing and includes Vickers and Knoop methods. Laboratories should use the current applicable version of the standard and follow its requirements for test force, specimen preparation, indentation measurement, spacing, and reporting.

​

Q26. What is ISO 6507 in Vickers hardness testing?

ISO 6507 is an international standard series covering Vickers hardness testing of metallic materials. It specifies requirements related to the test method, machines, verification, and hardness determination. The applicable part should be selected according to the testing conditions.

​

Q27. Can a Micro Vickers Hardness Tester be used for case depth measurement?

Yes. Micro Vickers testing is commonly used to measure hardness at different depths across a hardened case. By taking a series of measurements from the surface toward the core, a hardness profile can be developed to evaluate changes caused by heat treatment.

​

Q28. Can a Micro Vickers Hardness Tester be used for weld hardness testing?

Yes. Micro Vickers testing can be useful for localized hardness measurements across weld metal, heat-affected zones, and base material. Multiple indentations can be made along a defined line to understand hardness variation across the welded region.

​

Q29. Can a Micro Vickers Hardness Tester be used for heat-treatment quality control?

Yes. It can help evaluate hardness changes resulting from processes such as hardening, tempering, carburizing, nitriding, and other surface treatments. A controlled test procedure and suitable measurement locations are important for meaningful quality-control results.

​

Q30. Can Micro Vickers testing be used for ceramic materials?

Micro Vickers testing can be used for suitable ceramic and brittle materials, provided the test conditions, specimen preparation, and indentation quality are appropriate. Because brittle materials can develop cracks around an indentation, results should be interpreted carefully.

​

Q31. Can a Micro Vickers Hardness Tester test ferrous and non-ferrous metals?

Yes. Micro Vickers testing can be applied to many ferrous and non-ferrous materials, including steels, stainless steels, aluminium alloys, copper alloys, brass, and other engineering materials. The appropriate test force should be selected according to the material and standard.

​

Q32. Can Micro Vickers testing be used for electronic components?

Yes. The low test forces and small indentation size make microhardness testing useful for certain electronic and precision components where only a small testing area is available. The component's geometry and sensitivity to indentation damage should be considered before testing.

​

Q33. How do I choose a Micro Vickers Hardness Tester?

Consider the required test-load range, measurement resolution, optical system, camera and image-analysis capability, automation level, turret configuration, software, applicable standards, specimen size, reporting requirements, and after-sales support. The best machine is the one that matches your actual testing applications rather than simply having the highest specification.

​

Q34. What specifications should I check before buying a Micro Vickers Hardness Tester?

Important specifications include test-load range, load-control accuracy, indenter type, optical magnification, measurement resolution, microscope or camera system, motorized or manual turret, software features, specimen-stage capacity, testing standards, and calibration or verification provisions.

​

Q35. What is a motorized turret in a Vickers Hardness Tester?

A motorized turret allows the instrument to electronically switch between the indenter and objective lenses or other optical positions. It can make testing more convenient and repeatable, particularly when combined with computerized image analysis and automated testing workflows.

​

Q36. What is a Diamond Pyramid Indenter in Vickers Testing?

The Vickers method uses a diamond pyramid indenter with a square-based geometry. The indenter creates a controlled impression in the specimen, and the diagonals of that impression are measured to determine the Vickers hardness value.

​

Q37. Why is a 136-degree indenter used in Vickers hardness testing?

The Vickers indenter has a specified square-based pyramidal geometry with an angle of approximately 136° between opposite faces. This standardized geometry allows hardness results to be calculated consistently across suitable testing loads and materials.

​

Q38. What is the difference between a Digital and Computerized Micro Vickers Hardness Tester?

A digital model may primarily provide electronic control and digital display of test parameters or results. A computerized model generally adds PC-based software, camera imaging, automated indentation measurement, data storage, reporting, and other analysis functions. The exact features vary by manufacturer and model.

​

Q39. What is the price of a Micro Vickers Hardness Tester in India?

The price varies considerably according to the load range, optical system, automation, camera, image-analysis software, motorized turret, accessories, and reporting features. Instead of comparing machines only on price, it is advisable to request a quotation based on the required testing application and configuration.

​

Q40. How can I get a quotation for a Micro Vickers Hardness Tester?

A quotation can be prepared based on your required test-load range, material type, specimen dimensions, automation requirements, software, camera system, applicable standards, and other laboratory requirements. Providing these details to the supplier helps ensure that the proposed configuration matches your application.

​

Q41. Where can I buy a Micro Vickers Hardness Tester in India?

Micro Vickers Hardness Testers are available from specialized hardness-testing equipment manufacturers and suppliers in India. When selecting a supplier, consider machine specifications, installation, application support, calibration assistance, spare parts, software support, and after-sales service.

​

Q42. What should I look for in a Micro Vickers Hardness Tester manufacturer?

Look for experience in hardness-testing equipment, technical support, proper documentation, calibration and verification support, availability of spare parts, application assistance, software support, and the ability to provide installation and after-sales service.

​

Q43. Is Multitek Technologies a Micro Vickers Hardness Tester manufacturer and supplier in Delhi?

Multitek Technologies provides hardness-testing equipment and laboratory solutions, including Micro Vickers Hardness Tester solutions. Customers in Delhi NCR and other parts of India can discuss their application requirements with the company to identify a suitable machine configuration.

​

Q44. Does a Micro Vickers Hardness Tester require calibration?

Yes. Regular calibration and verification are important for maintaining measurement reliability. Calibration should be performed according to the applicable standard, laboratory quality system, manufacturer's recommendations, and the required accuracy of the application.

​

Q45. What is NABL calibration for a hardness testing machine?

NABL calibration refers to calibration performed by a laboratory accredited by the National Accreditation Board for Testing and Calibration Laboratories for the relevant scope. For laboratories operating under quality-management requirements, appropriate accredited calibration can help demonstrate traceability and confidence in measurement results.

​

Q46. Can a Micro Vickers Hardness Tester be NABL calibrated?

A Micro Vickers Hardness Tester can be calibrated through a laboratory having the appropriate NABL-accredited scope for the required calibration activity. The specific scope, range, method, and accreditation status should always be verified before arranging calibration.

​

Q47. What is a NABL calibrated hardness tester?

A hardness tester that has been calibrated by an appropriately accredited calibration laboratory can have documented calibration results and measurement traceability within the laboratory's accredited scope. It is important to check the calibration certificate, applicable range, standards used, and accreditation scope rather than relying only on the phrase "NABL calibrated."

​

Q48. What are common errors in Micro Vickers hardness testing?

Common sources of error include poor specimen preparation, an uneven or contaminated surface, incorrect test-force selection, unclear indentation edges, improper focusing, excessive vibration, incorrect diagonal measurement, insufficient spacing between indentations, and an unsuitable test location.

​

Q49. How can I improve the accuracy of Micro Vickers hardness testing?

Use a properly prepared specimen, select an appropriate test force, maintain the indenter and optical system, ensure stable machine conditions, follow the relevant testing standard, measure both indentation diagonals carefully, and perform regular verification and calibration.

​

Q50. Does specimen preparation affect Micro Vickers hardness results?

Yes. Surface condition can significantly affect indentation measurement. The specimen should normally be sufficiently flat, smooth, clean, and properly prepared so that the indentation boundaries can be clearly observed without introducing unnecessary deformation or measurement uncertainty.

​

Q51. How often should a Micro Vickers Hardness Tester be serviced?

The service interval depends on usage, operating environment, machine condition, and manufacturer recommendations. Regular preventive maintenance can help identify issues with the loading mechanism, optics, indenter, stage, software, and other components before they affect test results.

​

Q52. Can a Micro Vickers Hardness Tester be repaired or upgraded?

Depending on the machine condition and model, repair or upgrade options may include mechanical components, optical systems, cameras, software, electronics, lighting, or other control components. An inspection is normally required to determine whether repair or modernization is practical.

​

Q53. Can a Micro Vickers Hardness Tester be used in a metallurgy laboratory?

Yes. Micro Vickers testing is widely suited to metallurgy and materials laboratories because it allows localized hardness evaluation of heat-treated materials, metallographic samples, coatings, weld regions, and small components.

​

Q54. What is the difference between Microhardness and Nanohardness Testing?

Microhardness testing generally uses larger indentation loads and depths than nanoindentation. Nanohardness techniques are designed for extremely small-scale mechanical-property measurements, often involving very low forces and advanced depth-sensing instrumentation.

​

Q55. What is a hardness block and why is it used?

A certified hardness test block is used to verify or check the performance of a hardness-testing instrument. The block has a known hardness value or range and can help identify whether the tester is producing results within the expected limits.

​

Q56. What is the hardness block calibration standard?

Hardness blocks are calibrated and verified according to applicable hardness-testing standards and procedures. The specific standard depends on the hardness method, such as Vickers, Rockwell, or other methods. The certificate and traceability information should be checked when using reference blocks.

​

Q57. Is Micro Vickers hardness testing suitable for jewellery and precious metals?

It can be suitable for certain jewellery and precious-metal applications where localized hardness measurement is required. Because many jewellery components are small, thin, or finished surfaces, the test load and test location should be selected carefully to avoid unacceptable surface damage.

Q58. What is the difference between a Micro Vickers Hardness Tester and a standard Vickers Hardness Tester?

The main distinction is the scale of testing. A Micro Vickers Hardness Tester is designed for lower forces and smaller indentations, making it suitable for thin layers, small areas, and localized testing. Standard Vickers equipment is generally intended for higher-force applications and larger specimens.

​

Q59. Why should I choose a computerized Micro Vickers Hardness Tester instead of a manual model?

A computerized system can reduce manual measurement work and make it easier to capture images, measure indentations, calculate hardness values, store results, and generate reports. It can be particularly beneficial for laboratories performing repetitive testing or requiring electronic records.

​

Q60. What applications are suitable for a Micro Vickers Hardness Tester?

Typical applications include metallography, heat-treatment analysis, case-depth studies, weld-zone testing, thin coatings, small precision components, electronics, ceramics, research laboratories, quality control, and materials-development work.

​

Q61. Can Micro Vickers hardness testing measure hardness across a case-hardened layer?

Yes. Multiple indentations can be made at controlled distances from the surface to create a hardness-depth profile. This is useful for evaluating case-hardening processes such as carburizing and nitriding when the test method and spacing requirements are properly followed.

​

Q62. How does image analysis improve Micro Vickers hardness testing?

Image analysis can automatically or semi-automatically identify the indentation boundaries, measure the diagonals, and calculate the hardness value. This can make measurements more consistent and provides a visual record that can be useful for quality control and reporting.

​

Q63. What is the advantage of automatic Micro Vickers Hardness Testing?​

Automatic testing can reduce operator involvement during repetitive measurements. Depending on the system, automated functions may include test-force application, turret movement, indentation imaging, diagonal measurement, hardness calculation, data recording, and report generation.

​

Q64. What industries use Micro Vickers Hardness Testers?

Micro Vickers systems are used in industries and laboratories involved in automotive components, aerospace materials, heat treatment, tool manufacturing, electronics, metallurgy, precision engineering, research, coatings, and quality control.

​

Q65. How can I select the right Micro Vickers Hardness Tester for my laboratory?

Start with the materials and components you need to test, the smallest test area, required test-force range, applicable standards, expected testing volume, and reporting requirements. Then compare optical resolution, automation, software, calibration support, and after-sales service to select the most appropriate configuration.

​

Subscribe to our channel to get new updates :Multitek YouTube Channel!

​

Micro Vickers Hardness Tester - Automatic, Digital, and Computerized Models

Multitek Technologies offers advanced Automatic Micro Vickers Hardness Testers designed for high-precision hardness measurements. Our Digital and Computerized Micro Vickers Hardness Testing Machines deliver accurate, repeatable results across a wide range of materials, including metals, alloys, ceramics, and composites. Available in custom configurations, our testers are ideal for laboratories, R&D centers, production units, and quality assurance departments. Micro Vickers Measurement Software

 

Key Features:
✔️ Automatic load application and optical measurement
✔️ Digital touchscreen display and computerized data acquisition
✔️ Customizable models to suit specific testing needs
✔️ High precision with minimal human intervention
✔️ Compliance with ASTM E384, ISO 6507 standards