Abstract
This paper presents an overview of the recent works on dynamic strain aging (DSA) of Fe-Mn-C austenitic steels including Hadfield and twinning-induced plasticity (TWIP) steels. First, a model of the DSA mechanism and its controlling factors are briefly explained in terms of Mn-C coupling and dislocation separation. Then, we introduce the effects of DSA on mechanical properties such as work hardening capability, uniform elongation, post-uniform elongation, and fatigue strength. Specifically, we note the pinning effect on extended dislocation for the work hardening, the Poretvin-Le Chatelier banding effect on damage evolution for the elongation, and the crack tip hardening/softening effect on crack resistance for the fatigue strength. We believe that this overview will help in designing advanced high-strength steels with superior ductility and fatigue resistance.
| Original language | English |
|---|---|
| Pages (from-to) | 187-200 |
| Number of pages | 14 |
| Journal | Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan |
| Volume | 104 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Apr 1 2018 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Metals and Alloys
- Materials Chemistry
Cite this
Overview of dynamic strain aging and associated phenomena in Fe-Mn-C austenitic steels. / Koyama, Motomichi; Sawaguchi, Takahiro; Tsuzaki, Kaneaki.
In: Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, Vol. 104, No. 4, 01.04.2018, p. 187-200.Research output: Contribution to journal › Review article
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TY - JOUR
T1 - Overview of dynamic strain aging and associated phenomena in Fe-Mn-C austenitic steels
AU - Koyama, Motomichi
AU - Sawaguchi, Takahiro
AU - Tsuzaki, Kaneaki
PY - 2018/4/1
Y1 - 2018/4/1
N2 - This paper presents an overview of the recent works on dynamic strain aging (DSA) of Fe-Mn-C austenitic steels including Hadfield and twinning-induced plasticity (TWIP) steels. First, a model of the DSA mechanism and its controlling factors are briefly explained in terms of Mn-C coupling and dislocation separation. Then, we introduce the effects of DSA on mechanical properties such as work hardening capability, uniform elongation, post-uniform elongation, and fatigue strength. Specifically, we note the pinning effect on extended dislocation for the work hardening, the Poretvin-Le Chatelier banding effect on damage evolution for the elongation, and the crack tip hardening/softening effect on crack resistance for the fatigue strength. We believe that this overview will help in designing advanced high-strength steels with superior ductility and fatigue resistance.
AB - This paper presents an overview of the recent works on dynamic strain aging (DSA) of Fe-Mn-C austenitic steels including Hadfield and twinning-induced plasticity (TWIP) steels. First, a model of the DSA mechanism and its controlling factors are briefly explained in terms of Mn-C coupling and dislocation separation. Then, we introduce the effects of DSA on mechanical properties such as work hardening capability, uniform elongation, post-uniform elongation, and fatigue strength. Specifically, we note the pinning effect on extended dislocation for the work hardening, the Poretvin-Le Chatelier banding effect on damage evolution for the elongation, and the crack tip hardening/softening effect on crack resistance for the fatigue strength. We believe that this overview will help in designing advanced high-strength steels with superior ductility and fatigue resistance.
UR - http://www.scopus.com/inward/record.url?scp=85045334932&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85045334932&partnerID=8YFLogxK
U2 - 10.2355/tetsutohagane.TETSU-2017-089
DO - 10.2355/tetsutohagane.TETSU-2017-089
M3 - Review article
VL - 104
SP - 187
EP - 200
JO - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
JF - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
SN - 0021-1575
IS - 4
ER -