PDF(Pubmed)
Abstract：
The effect of high-temperature deformation twinning on the work hardening behaviors of Fe-38Mn alloy during hot shear-compression deformation was investigated. The discovery of micro-shear bands and deformation twinning is significant for continuous work hardening, and this represents an important step toward gaining a complete understanding of the effect of deformation twinning on work hardening behaviors. Deformation twinning is widely acknowledged to accommodate plastic strain under cold deformation, even under severe plastic deformation. At present, the equivalent stress vs. strain curves for hot shear-compression deformation of Fe-38Mn alloy exhibit the characteristics of continuous work hardening. In addition, continuous work hardening is classified into five stages when considering high-temperature deformation twinning.
摘要：
研究了高温变形孪生对Fe-38Mn合金在热剪切压缩变形过程中加工硬化行为的影响。微剪切带和变形孪生的发现对于连续加工硬化具有重要意义,这代表了全面了解变形孪生对加工硬化行为的影响的重要一步。变形孪生被广泛认为可以适应冷变形下的塑性应变，即使在严重的塑性变形。目前,等效应力与Fe-38Mn合金热剪切压缩变形的应变曲线表现出连续加工硬化的特征。此外,考虑高温变形孪生时，连续加工硬化分为五个阶段。
