G0300-7-4 多軸負荷条件下におけるFe-28Mn-6Si-5Cr形状記憶合金の変形挙動と変形メカニズムに関する実験的研究([G0300-7]材料力学部門一般講演(7):材料強度)

概要

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The purpose of this research is to study the deformation mechanism and a condition to occure a stress induced martensitic transformation and a slip deformation of Fe-28Mn-6Si-5Cr shape memory alloy under multi-axial loading condition. We performed an uni-axial tensile test, an uni-axial compressive test and a simple torsional test and then recovered there shape to heat. From these results, it found that the martensitic transformation appeared before the slip deformation. Moreover a shape recovery strain and a plastic strain increase in proportion to stress. It was considered that the stress surface of the stress induced martensitic transformation corresponded to a Mises criterion and its yield surface corresponded to a Tresca criterion.
一般社団法人日本機械学会の論文
2010-09-04