Decomposition behavior of the γMn solid solution in a Mn-20Cu-8Ni-2Fe (at%) alloy studied by a magnetic measurement

被引：6

作者：

Yin, FX ^{[1
]}

Ohsawa, Y ^{[1
]}

Sato, A ^{[1
]}

Kawahara, K ^{[1
]}

机构：

[1] Natl Res Inst Met, Ibaraki, Osaka 3050047, Japan

来源：

MATERIALS TRANSACTIONS JIM | 1999年 / 40卷 / 05期

关键词：

gamma(Mn); solid solution; spinodal decomposition; Neel temperature; spin-freezing temperature; susceptibility;

D O I：

10.2320/matertrans1989.40.451

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Both Neel temperature (T-N) and spin freezing temperature (T-f) of gamma(Mn) solid solutions in aged Mn-20Cu-8Ni-2Fe (at%) alloys are determined with zero-field-cooling (ZFC) susceptibility measurement. Using the known data for binary hfn-Cu alloys, the equivalent Mn concentrations in Mn-enriched and Cu-enriched regions were estimated as a function of the aging time, and the changes in the concentration with the aging time indicate that the spinodal decomposition mode is still effective in the phase decomposition of Mn-Cu alloys. Meanwhile, the peak susceptibility at Ti temperatures and average unit cell dimensions suggest that the Cu-enriched regions behave to be the matrix fraction during the decomposition reaction.

引用

页码：451 / 454

页数：4

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