The origins of back stress strengthening were investigated in Fe-22Mn-0.6C and Fe-22Mn-0.6C-3Al TWIP steels. In contrast to reports found in literature, this study revealed that the high back stress developed in these steels is primarily caused by pile-ups of high density of geometrically necessary dislocations near the grain boundary regions rather than at deformation twins.

中文翻译：

---

Fe-22Mn-0.6C（-3Al）TWIP钢中背应力强化的起源

在Fe-22Mn-0.6C和Fe-22Mn-0.6C-3Al TWIP钢中研究了背应力强化的起源。与文献报道相反，这项研究表明，这些钢中产生的高背应力主要是由于晶粒边界区域附近而不是形变孪晶处的高密度几何必要位错的堆积所引起的。