Improved and simplified dislocation density based plasticity model for AISI 316 L

被引：30
|
作者：
Lindgren, Lars-Erik [1 ]
Hao, Qin [1 ]
Wedberg, Dan [2 ]
机构：
[1] Lulea Univ Technol, S-97187 Lulea, Sweden
[2] AB Sandvik Coromant, Met Cutting Modeling, S-81181 Sandviken, Sweden
来源：
MECHANICS OF MATERIALS | 2017年 / 108卷
关键词：
Flow stress; Dynamic strain ageing; Dislocation density; Austenitic stainless steel; AUSTENITIC STAINLESS-STEEL; HALL-PETCH RELATIONSHIP; LOW-CYCLE FATIGUE; FLOW-STRESS; GRAIN-SIZE; SUBSTRUCTURAL EVOLUTION; SOLID-SOLUTION; CELL-SIZE; STRAIN; DEFORMATION;
D O I：
10.1016/j.mechmat.2017.03.007
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A previously published dislocation density based flow stress model has been refined and made more consistent with underlying physical assumptions. The previous model included many temperature dependent parameters that are taken as constant in the current work. The model has also been simplified with respect to dynamic strain aging. Additional contributions to flow stress from the Hall-Petch effect and solute hardening have now been explicitly included in the model. Furthermore, the dynamic recovery part of the model has been improved. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：68 / 76
页数：9
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