Thermodynamic-Mechanical Modeling of Strain-Induced α′-Martensite Formation in Austenitic Cr-Mn-Ni As-Cast Steel

被引：11
|
作者：
Kovalev, Alexander [1 ]
Wendler, Marco [1 ]
Jahn, Andreas [2 ]
Weiss, Andreas [1 ]
Biermann, Horst [1 ]
机构：
[1] TU Bergakad Freiberg, Inst Iron & Steel Technol, D-09596 Freiberg, Germany
[2] Vallourec & Mannesmann Deutschland GmbH, D-40472 Dusseldorf, Germany
来源：
ADVANCED ENGINEERING MATERIALS | 2013年 / 15卷 / 07期
关键词：
TRANSFORMATION; KINETICS; TEMPERATURE; NUCLEATION;
D O I：
10.1002/adem.201200340
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The microstructure evolution during deformation and the mechanical behavior of an austenitic Cr-Mn-Ni as cast steel are investigated at various temperatures. The deformation-induced twinning and Ïμ/α′- martensite formation - the TWIP and TRIP effects - occur in the investigate steel depending on the deformation temperature. For characterization and illustration of the TRIP/TWIP effects the STT and DTT diagrams are developed. Finally, the α′-martensite nucleation threshold is determined, and an equation is proposed to describe the volume fraction of strain-induced α′-martensite as a function of the total driving force. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：609 / 617
页数：9
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