The effect of twinning and slip on the bauschinger effect of hadfield steel single crystals

被引：55
|
作者：
Karaman I. [1 ,2 ]
Sehitoglu H. [1 ]
Chumlyakov Y.I. [3 ]
Kireeva I.V. [3 ]
Maier H.J. [4 ]
机构：
[1] the Department of Mechanical and Industrial Engineering, University of Illinois, Urbana, 61801, IL
[2] Department of Mechanical Engineering, Texas A & M University, College Station, 77843, TX
[3] the Siberian Physical-Technical Institute, Tomsk
[4] the University of Paderborn, Lehrstuhl f. Werkstoffkunde, (Materials Science), Paderborn
来源：
Metallurgical and Materials Transactions A | 2001年 / Springer卷 / 32期
关键词：
Back Stress; Bauschinger Effect; Material Transaction; Slip System; Twin Boundary;
D O I：
10.1007/s11661-001-0086-x
中图分类号：
学科分类号：
摘要：
The Bauschinger effect (BE) in single crystals of Hadfield manganese steel (Fe, 12.3Mn, 1.0C in wt pct) was studied for three crystallographic orientations, (Formula presented.) FT/RC scheme. Localized slip and multiple slip in the forward loading provided a transient effect in the stress-strain response without a significant permanent softening. Hadfield steel single crystals have demonstrated a high BE for orientations conducive to combined twinning/slip deformation. The BE increased with increasing prestrain, then saturated and started to decrease, in contrast with precipitation-hardened alloys. A unique strain-hardening approach along with the back stress calculation was introduced into a viscoplastic self-consistent (VPSC) formulation. The strain-hardening formulation incorporates length scales associated with spacing between twin lamellae. The simulations correctly predicted the BE and the stress-strain response for both forward and reverse loading. © 2001, ASM International & TMS-The Minerals, Metals and Materials Society.
引用
收藏
页码：695 / 706
页数：11
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