PRESSURE-INDUCED REVERSE MARTENSITIC TRANSITION IN FE07NI03

被引：3

作者：

YAMAMOTO, K ^{[1
]}

ASANO, M ^{[1
]}

ENDO, S ^{[1
]}

OOMI, G ^{[1
]}

机构：

[1] KUMAMOTO UNIV,FAC GEN EDUC,DEPT PHYS,KUMAMOTO 860,JAPAN

来源：

MATERIALS TRANSACTIONS JIM | 1991年 / 32卷 / 04期

关键词：

REVERSE MARTENSITIC TRANSITION; PRESSURE; FE0.7NI0.3; ELECTRIC RESISTANCE; X-RAY DIFFRACTION;

D O I：

10.2320/matertrans1989.32.305

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An alloy Fe0.7Ni0.3 has been studied under high pressure up to 45 GPa by X-ray diffraction and an electric resistance measurement. The bcc alpha'-martensitic phase is transformed to a fcc gamma-austenitic phase at 8 GPa at room temperature. This transition is accompanied by the volume reduction of 0.17 x 10(-6) m3/mol and a large resistance increase. The decrease of the austenite-start temperature, A(s), from 623 K at ambient pressure to room temperature at 8 GPa gives the mean value of dA(s)/dP = -40.4 K/GPa. The entropy change of DELTA-S = 4.23 J/mol.K is obtained for the reverse martensitic transition.

引用

页码：305 / 307

页数：3

共 8 条

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[8]

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