Cold rolling behaviour and textural evolution in AISI 316L austenitic stainless steel
Cold rolling behaviour and textural evolution in AISI 316L austenitic stainless steel
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DOI：
10.1016/j.actamat.2005.05.006
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发表时间：
2005-08
期刊：
影响因子：
9.4
通讯作者：
S. Chowdhury;Samar K. Das;P. De
中科院分区：
文献类型：
--
作者：
S. Chowdhury;Samar K. Das;P. De
本文研究了316L奥氏体不锈钢在冷轧过程中组织和织构的演变。随着轧制压下量的增加，不同的变形机制变得活跃。透射电镜观察显示变形孪晶的存在。随着应变的增大，孪晶的体积分数增大。在较高的还原度下，有证据表明流动局部化发生，并形成剪切带。材料初始表现为Cu型织构，即Cu {112} < 111 >, Bs{110} < 112 >，并向Goss{011} < 100 >方向扩展。随着轧制的进行，Cu{112} < 111 >分量在轧制过程中减弱，其余两个分量强度增大。在较高的应变水平，有额外的织构成分，{111}< uvw >。织构的演变与相应的变形机制有关。
The present paper deals with the evolution of microstructure and texture of a 316L austenitic stainless steel during cold rolling. With increasing rolling reductions, different deformation mechanisms become active. TEM observations show the presence of deformation twinning. With increasing strain the volume fraction of twin increases. At higher degrees of reduction, there is evidence that flow localization takes place and there is formation of shear bands. The material initially shows Cu-type texture, i.e., Cu {112}〈111〉, Bs {110}〈112〉 with a spread towards Goss {011}〈100〉. With the progress of rolling, the Cu {112}〈111〉 component diminishes and the other two components increase their intensity during rolling. At higher strain levels, there are additional texture components, {111}〈uvw〉. The evolution of texture is correlated with the associated deformation mechanisms.