Effect of Heat Treatment on the Structure and Properties of a High-Nitrogen Austenitic Corrosion-Resistant 03Kh20AG11N7M2 Steel

被引：1

作者：

Berezovskaya, V. V. ^{[1
]}

Bannykh, O. A. ^{[2
]}

Kostina, M. V. ^{[2
]}

Blinov, E. V. ^{[2
]}

Shestakov, A. I. ^{[1
]}

Savrai, R. A. ^{[3
]}

机构：

[1] Ural State Tech Univ UPI, Ul Mira 19, Ekaterinburg 620002, Russia

[2] Russian Acad Sci, Baikov Inst Met & Mat Sci, Moscow 119991, Russia

[3] Russian Acad Sci, Ural Div, Inst Machine Sci, Ekaterinburg 620219, Russia

来源：

RUSSIAN METALLURGY | 2010年 / 2010卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

Austenitic stainless steel - Electron probe microanalysis - Corrosion resistance - Martensitic stainless steel - High resolution transmission electron microscopy - Steel corrosion - Corrosive effects - Austenite - Chromium alloys - Stress analysis;

D O I：

10.1134/S0036029510030079

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The structure and mechanical and corrosion properties of a high-strength austenitic 03Kh20AG11N7M2 steel after quenching and aging at 500 and 800 degrees C are analyzed. The phase composition of the steel and the mechanism of the decomposition of austenite during heat treatment are studied by electron-probe microanalysis and transmission electron microscopy. This steel is thermally stable upon heating to 800 degrees C for 1 h and is stable to the gamma -> alpha and gamma -> epsilon martensitic transformation during deformation up to tensile strains leading to fracture. The homogeneous decomposition of a supersaturated. solid solution at 500 degrees C leads to the formation of disperse CrN nitrides, which increase the strength of the steel and insignificantly decrease its plasticity. In this case, the stress corrosion cracking resistance slightly decreases and the passivation of the steel increases in an corrosive medium without loading.

引用

页码：183 / 192

页数：10

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