TWIP steels have been cynosure owing to their great potential to be used in the automotive industry. In the present work, an austenitic Fe-22.5Mn-1.5Al-0.35 C steel has been investigated for its cold deformation behavior. X-ray line profile analysis has been used to investigate the evolution of dislocation density, crystallite size, microstrain, twin and stacking fault probability during cold rolling. The steel has been cold rolled up to 80% thickness reduction and a high dislocation density of the order of 10¹⁵m⁻² is estimated after high degrees of plastic deformation. The microstrain and crystallite size show tendencies to saturate towards higher degrees of deformation. Texture analysis reveals transformation of an initially formed Copper-type texture into a Brass-type texture after medium degrees of rolling reduction. The correlation between microstructural defects and texture evolution has been discussed.

TWIP钢因其在汽车工业中的巨大潜力而​​倍受青睐。在目前的工作中，已经研究了奥氏体Fe-22.5Mn-1.5Al-0.35 C钢的冷变形行为。X射线线轮廓分析已用于研究冷轧过程中位错密度，微晶尺寸，微应变，孪晶和堆垛层错概率的演变。将钢冷轧至80％的厚度减小和10 ¹⁵ m ^-2的高位错密度是在高度塑性变形后估算的。微应变和微晶尺寸显示出趋向于更高程度的变形的趋势。织构分析表明，经过中等程度的轧制压下后，最初形成的铜型织构转变为黄铜型织构。讨论了微观结构缺陷与织构演变之间的关系。