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@article{851119, author = {Navrátil, Vladislav and Novotná, Jiřina}, article_location = {Bratislava}, article_number = {3}, keywords = {Microhardness; Indentation; Mathematics; Dislocations}, language = {eng}, issn = {1337-6365}, journal = {Journal of Applied Mathematics}, title = {SOME PROBLEMS OF MICROHARDNESS OF METALS}, volume = {Vol. 2}, year = {2009} }
TY - JOUR ID - 851119 AU - Navrátil, Vladislav - Novotná, Jiřina PY - 2009 TI - SOME PROBLEMS OF MICROHARDNESS OF METALS JF - Journal of Applied Mathematics VL - Vol. 2 IS - 3 SP - 241 - 244 EP - 241 - 244 PB - Slovak University of Technology SN - 13376365 KW - Microhardness KW - Indentation KW - Mathematics KW - Dislocations N2 - The purpose of our contribution was to study the load dependence of the microhardness. This well known phenomena is called the Indentation Size Effect (ISE) and was investigated for two sets of specimen: pure copper and zinc. Variation of the microhardness with depth of indent (or applied load) was compared with various existing models. For the materials investigated the ISE is not artefact and can be explained by the hypothesis of presence of geometrically necessary dislocations, i.e. dislocations produced to accomodate the gradient in strain surrounding the indent. ER -
NAVRÁTIL, Vladislav a Jiřina NOVOTNÁ. SOME PROBLEMS OF MICROHARDNESS OF METALS. \textit{Journal of Applied Mathematics}. Bratislava: Slovak University of Technology, 2009, Vol. 2, č.~3, s.~241 - 244. ISSN~1337-6365.
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