液氮电脉冲处理超细晶316L不锈钢的低温拉伸性能

董宇昂, 阳华杰, 贲丹丹, 马云瑞, 周相海, 王斌, 张鹏, 张哲峰

Excellent Cryogenic Tensile Properties of Ultra-fine Grained 316L Stainless Steel after Electropulsing Treatment in Liquid Nitrogen

DONG Yu'ang, YANG Huajie, BEN Dandan, MA Yunrui, ZHOU Xianghai, WANG Bin, ZHANG Peng, ZHANG Zhefeng

图2 拉伸实验用样品的微观组织

Fig.2 Microstructures of the tensile specimen before and after EPT (a) TEM image of the cold-rolled sample, (b, c) EBSD inverse pole figure (IPF) maps of the EPT-7LN and EPT-7.5LN samples, (d) lamellar thickness distribution diagram, (e, f) grain diameter distribution diagrams