論文
Fe-Mn-C TWIP鋼における室温静的ひずみ時効の影響因子
キーワード:
twinning-induced plasticity,
stacking fault energy,
static strain aging,
dynamic strain aging,
hydrogen
2014 年 100 巻 9 号 p. 1123-1131
詳細
2014 年 100 巻 9 号 p. 1123-1131
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.
