Recrystallization Mechanisms in Severely Deformed Dual-Phase Stainless Steel

被引：8

作者：

Belyakov, Andrey ^{[1
]}

Kaibyshev, Rustam ^{[1
]}

Kimura, Yuuji ^{[2
]}

Tsuzaki, Kaneaki ^{[2
]}

机构：

[1] Belgorod State Univ, Pobeda 85, Belgorod 308015, Russia

[2] Natl Inst Mat Sci, Struct Metals Ctr, Tsukuba, Ibaraki 305 0047, Japan

来源：

THERMEC 2009, PTS 1-4 | 2010年 / 638-642卷

基金：

日本学术振兴会; 俄罗斯基础研究基金会;

关键词：

Austenite/ferrite stainless steel; severe deformation; grain refinement; internal stresses; recovery; recrystallization; LARGE-STRAIN DEFORMATION; NANOSTRUCTURED MATERIALS;

D O I：

10.4028/www.scientific.net/MSF.638-642.1905

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The structural recrystallization mechanisms operating in an Fe - 27%Cr - 9% Ni dual-phase (ferrite-austenite) stainless steel after large strain processing to total strain of 4.4 were investigated in the temperature range of 400-700 degrees C The severe deformation resulted in the development of an ultrafine grained microstructure consisting of highly elongated grains/subgrains with transverse dimensions of 160 nm and 130 nm in ferrite and austemte, respectively. The annealing mechanism operating in ferrite phase was considered as continuous recrystallization, which involved recovery leading to the development of essentially polygonized microstructure On the other hand, the mechanism of discontinuous nucleation took place at an early recrystallization stage in austenite phase.

引用

页码：1905 / +

页数：2

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