Can the Vickers HV hardness tester be used to test the hardness of welded joints?

The Vickers hardness tester HV is very suitable for testing the hardness of welded joints. A welded joint consists of the weld zone, fusion zone, heat-affected zone, and other parts; the hardness of each zone differs, and the structure is relatively complex. The Vickers hardness tester can precisely measure small hardness changes in different zones.
During testing, the welded joint specimen must be ground and polished to ensure the test surface is flat and smooth. Then, an appropriate test force, usually 1-10N, is selected to perform multi-point measurements at different positions of the joint to plot a hardness distribution curve, thereby analyzing the welding quality. For tiny areas such as weld edges and the vicinity of the fusion line, a small test force can be used for precise testing to avoid oversized indentations covering different zones and affecting the results.
The high precision and wide measurement range of the Vickers hardness tester can clearly reflect the hardness gradient of the welded joint, providing an important basis for evaluating the welding process and joint performance.

Kunshan Fuze Testing Equipment Co., Ltd. has extensive experience in the hardness testing of welded joints and can provide professional support. The FV810 / FV310 and other Vickers hardness testers from Taiwan Zhongze Company can meet the testing requirements for welded joints. Welcome to call for consultation.