微小硬さに及ぼす表面粗さの影響に関する統計的研究 : 圧縮負荷応力の場合

概要

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In order to investigate the influence of applied compressive stress within an elastic limit on the microhardness of an annealed carbon steel and carbon tool steel, hardness tests were made by changing two parameters, indentation load and surface roughness due to final polish. The results obtained were as follows : (1) Without applied compressive stress, hardness measurements were influenced by the measuring conditions of indentation load and surface roughness due to final polish. The errors of each measuring condition were unequal each other. (2) The microhardness number were influenced by the compressive stress for the measuring conditions of indentation load and surface roughness due to final polish. The errors of each measuring condition were unequal each other but the dispersions of each applied compressive stress were equal each other. (3) A linear relationship existed between the applied compressive stress and microhardness number. The regression coefficients were unequal each other, but were equal each other for the measuring conditions of independent of inentation load.
東海大学の論文