Secondary work embrittlement of cold-rolled 05CuPCrNi sheet at low temperature  

作　　者：ZHANG Guoxiang LIANG Gaofei FU Yan'an LI Yongcan WANG Xunhong 

机构地区：[1]Customer & Product Service Department,Baoshan Iron & Steel Co.,Ltd. [2]Research Institute,Baoshan Iron & Steel Co.,Ltd.

出　　处：《Baosteel Technical Research》2016年第4期36-40,共5页宝钢技术研究（英文版）

摘　　要：Due to the rapid development of China＇ s rail transportation equipment manufacturing industry and related international distribution, important material suppliers such as Baoshan Iron ＆ Steel Co., Ltd. carries on investigating the stability of material under extremely cold conditions. In this study, mechanical properties and secondary work embrittlement of weathering steel 05CuPCrNi were tested at low temperature. Compared to the mechanical properties at room temperature, the yield and tensile strength increase slightly with decreasing temperature. However, the variation of elongation is not obvious. The experimental results also show that the secondary work embrittlement transition temperature of 05CuPCrNi is lower than - 60 ℃. These results provide the basis for the use of this train body material in extremely cold regions.Due to the rapid development of China＇ s rail transportation equipment manufacturing industry and related international distribution, important material suppliers such as Baoshan Iron ＆ Steel Co., Ltd. carries on investigating the stability of material under extremely cold conditions. In this study, mechanical properties and secondary work embrittlement of weathering steel 05CuPCrNi were tested at low temperature. Compared to the mechanical properties at room temperature, the yield and tensile strength increase slightly with decreasing temperature. However, the variation of elongation is not obvious. The experimental results also show that the secondary work embrittlement transition temperature of 05CuPCrNi is lower than - 60 ℃. These results provide the basis for the use of this train body material in extremely cold regions.

关 键 词：weathering steel low temperature mechanical properties secondary work embrittlement 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TG335.12[金属学及工艺—金属材料]