Abstract
We investigated the factors affecting static strain aging under stress in a Fe-22Mn-0.6C twinninginduced 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.
| Original language | English |
|---|---|
| Pages (from-to) | 1089-1096 |
| Number of pages | 8 |
| Journal | Isij International |
| Volume | 53 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2013 |
| Externally published | Yes |
Keywords
- Dynamic strain aging
- Hydrogen
- Stacking fault energy
- Static strain aging
- Twinning-induced plasticity
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry