232 Al-Al_2O_3 分散強化材料における圧子押付け力とビッカース硬さのばらつきとの関係

概要

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The hardness of Al-Al_2O_3 materials were measured at the condition of the applied force of indenter was widely changed to examine the contribution of each phase of dispersion hardened materials. The hardness scatter of Al-Al_2O_3 materials were larger as the single phase materials such as pure Al and Al_2O_3 materials, is especially at the low applied force conditions and at the Al-Al_2O_3 materials of high Al_2O_3 volume fraction. The hardness scatter came to decrease as the applied force F=5N or more it decreases to the same extent as the single phase material. The scatter of hardness under low applied force forms two or three groups, and it has been understood that the hardness of the matrix and dispersion phase appears in the lower group and the higher group, respectively.
一般社団法人日本機械学会の論文
2003-03-13