Vickers hardness test
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The Vickers hardness test was developed in 1921 by Robert L. Smith and George E. Sandland at Vickers Ltd as an alternative to the Brinell method to measure the hardness of materials. The Vickers test
A Vickers hardness tester
The pyramidal diamond indenter of a Vickers hardness tester
This is a good indentation.
Martensite
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Martensite is a very hard form of steel crystalline structure. It is named after German metallurgist Adolf Martens. By analogy the term can also refer to any crystal structure that is formed by diffus
Martensite in AISI 4140 steel
Арматурный прокат