Features of austenitic steels' microstructure following plastic deformation

被引：12
|
作者：
Gershteyn, G. [1 ]
Shevchenko, N. [2 ]
Diekamp, M. [1 ]
Brosius, A. [3 ]
Schaper, M. [1 ]
Bach, Fr-W. [1 ]
机构：
[1] Univ Hannover, Inst Mat Sci, D-30823 Garbsen, Germany
[2] Inst Strength Phys & Mat Sci SB RAS, Tomsk, Russia
[3] Tech Univ Dortmund, Inst Forming Technol & Lightweight Construct, Dortmund, Germany
来源：
MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK | 2012年 / 43卷 / 03期
关键词：
austenitic steel; cold rolling; twins; shear bands; TEM; austenitischer Stahl; Kaltwalzen; Zwilling; Scherband; STAINLESS-STEEL; SHEAR BANDS; TEXTURE;
D O I：
10.1002/mawe.201200853
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The carried out transmission electron microscopic (TEM) analysis of steels 316L and TWIP, has shown that important mechanisms of plastic deformation are mechanical twinning, shear band formation and deformation martensitic transformations. Mechanical twinning is a characteristic feature of a plastic deformation at epsilon approximate to(20-50)% deformation degrees. At epsilon = (20-70)% the basic contribution in plastic deformation of a material brings shear band formation. The contribution deformation martensitic transformations into plastic deformation is defined by level of phase instability of steels.
引用
收藏
页码：262 / 267
页数：6
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