53:38
Low-carbon steels are the first option when designing with steel. They offer good machinability and excellent weldability. To some extent, the strength and ductility can be manipulated by various thermal and mechanical processes, such as working, annealing, and carburization. This session is a live demonstration of standardized nanoindentation with the KLA iMicro nanoindenter to characterize cold-drawn 1018 steel. Ms. Hay demonstrates sample preparation, instrument configuration, test specification, execution and data interpretation.
See the KLA nanoindenters by visiting https://www.kla-ten...
01:01:00
In its most basic form, instrumented indentation involves pressing an indenter of known geometry into a test surface while continuously monitoring force and displacement. In this session, we review the test and analysis commonly known as the “Oliver-Pharr” method for measuring hardness and Young’s modulus. The continuous measurement of force and displacement affords two important advantages over traditional hardness testing. First, the contact area can be analytically inferred and does not have to be optically measured. Second, the displacements measured during unloading manifest elastic re...
57:39
The first and most enduring application of nanoindentation is the characterization of hard coatings designed for mechanical and chemical protection of an underlying material. This session is a live demonstration of standardized nanoindentation with the KLA iMicro nanoindenter to characterize an industrial nitride coating on a tungsten- carbide substrate. Ms. Hay demonstrates sample mounting, instrument configuration, test specification, execution and data interpretation.
See the KLA nanoindenters by visiting https://www.kla-tencor.com/products/nanomechanical-testers.
53:30
In 1992, Warren Oliver and George Pharr published an article that revolutionized hardness testing. The genius of Oliver and Pharr was that they devised a way to know the size of a hardness indentation without imaging it. This development disrupted Vickers and Knoop microhardness testing, which required direct measurement of the lengths of the indentation diagonals. Not having to image the indentation paved the way for fully automated hardness testing. Not only was automated testing independent of human bias, it was also much faster, because multiple tests on multiple samples could be prescr...
01:57
High speed nanoindentation completed using NanoBlitz 3D.
See the KLA nanoindenters by visiting https://www.kla-tencor.com/products/nanomechanical-testers.
00:25
A short demonstration of the Nanomechanics' NanoFlip
