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3715507 
Journal Article 
Factors Affecting Static Strain Aging under Stress at Room Temperature in a Fe-Mn-C Twinning-induced Plasticity Steel 
Koyama, M; Akiyama, E; Tsuzaki, K 
2013 
1 
ISIJ International
ISSN: 0915-1559
EISSN: 1347-5460 
53 
6 
1089-1096 
WOS:000320973600021 
We investigated the factors affecting static strain aging under stress in a Fe-22Mn-0.6C twinning-induced plasticity steel at room temperature. The magnitude of strengthening by the static strain aging was estimated by tensile strain holding and subsequent re-loading. Strain holding time, pre-strain, strain rate, external stress, and diffusible hydrogen content were varied to clarify their effects on static strain aging, and the present static strain aging was found to be affected by all of these factors. In this paper, we show the phenomenological laws of the relationship among the factors and the stress increase due to the static strain aging. 
twinning-induced plasticity; stacking fault energy; static strain aging; dynamic strain aging; hydrogen