Spinodal Decomposition in Fe-Cr Alloys

被引：0

作者：

Soriano Vargas, Orlando ^{[1
]}

Avila-Davila, Erika O. ^{[1
]}

Lopez-Hirata, Victor M. ^{[1
]}

Saucedo-Munoz, Maribel L. ^{[1
]}

机构：

[1] Inst Politecn Nacl, Mexico City 07051, DF, Mexico

来源：

SOLID-SOLID PHASE TRANSFORMATIONS IN INORGANIC MATERIALS, PTS 1-2 | 2011年 / 172-174卷

关键词：

Spinodal decomposition; Fe-Cr alloys; Microstructural evolution; Growth kinetics; NUMERICAL-SIMULATION; PHASE-SEPARATION; TERNARY ALLOYS; MO;

D O I：

10.4028/www.scientific.net/SSP.172-174.443

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The hardening behavior of precipitation was studied during aging of Fe-Cr alloys. This mechanical behavior is associated with the nanometric modulation structure of the coherent decomposed Fe-rich and Cr-rich phases formed by the spinodal decomposition of the supersaturated solid solution. The growth kinetics of spinodal decomposition was very slow and it increased during coarsening stage. The morphology of decomposed phases consisted of an interconnected irregular shape with no preferential alignment for short aging times and a further aging caused the change to a plate shape of the decomposed Cr-rich phase aligned in the < 110 > directions of the Fe-rich matrix. The rapid increase in hardness and embrittlement seem to be associated with the coherency and nanometer size of the spinodally-decomposed phases in the aged alloys.

引用

页码：443 / 448

页数：6

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