Stress-induced martensite in single crystals of an Fe-23Ni-5Cr alloy

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書誌事項

公開日
1976-09
権利情報
  • https://www.elsevier.com/tdm/userlicense/1.0/
DOI
  • 10.1016/0001-6160(76)90052-3
公開者
Elsevier BV

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説明

Abstract Asymmetrical uniaxial stress was applied to single crystals of an Fe-23%Ni-5%Cr alloy to induce martensitic transformations. Slip and martensitic transformations occurred concurrently during the deformation and the normal temperature dependence of yield stress was observed. Stress-induced martensite in this alloy was needle-like surface martensite. Determination of martensite varients was performed using an X-ray Weissenberg technique. Distribution of variants was very sensitive to the sense of the applied stress and the results were well explained by postulating the {111}f〈211〉f shear systems in the initial stage of the transformation. Phenomenological calculation showed less rational correlation to the observed stress-induced variants. The stronger tendency towards martensite formation in tension as compared to compression was also explained using the above postulate.

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