21401 自動車用アルミニウム合金の添加元素が機械的特性に及ぼす影響(一般講演アルミニウム材)

概要

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Improvement in fuel consumption efficiency is an important issue for the automobile industry. Light-weighting of the automobile body with the use of an aluminum alloy is a promising approach to improve the fuel consumption efficiency. However, due to the difficulty in plastic forming and high cost, aluminum alloys have not been commercially used for the material of body shells. It is known that proper addition of elements and heat treatment can drastically improve the quality of plastic forming. Noting this point, we have conducted tensile experiments using various dispersion states of added elements and heat treatments. Using electronic speckle pattern interferometry to measure deformation, strength and other behaviors of the material under deformation, we investigated the effect of dispersion states of added elements and heat treatment, and their interrelationship. In this presentation, we will report characteristic relationship between the strain distribution and stress-strain curve that we discovered.
一般社団法人日本機械学会の論文
2010-03-09