Material and Structure Design for Welding Joints in Railways Basing on Mechanical-Property Tests
Industrial design is important for industry,especially in the circumstance concerning the human security,of which the material selection and design basing on serious experiments,especially mechanical-tests have drawn more and more attentions of many artists and scientists.In this study,by tension,impact,hardness and scanning electron microscopy (SEM),the mechanical property of the flash butt welding joint of U71Mn rail steel to bainitic alloy steel used for railway frog is studied.The results indicate the distribution of hardness in the alloy steel side is uniform,and the hardness at the HAZ (hot affected zone) of the rail steel is higher than that of the base material.The tension property is the same as the U71Mn steel,and both the tension and impact property meet the corresponding requirements of Railways Ministry,which indicates the feasible of the bainitic alloy steel to the rail steel joint by flash butt welding.
industrial design material bainitic steel flash butt welding
Zhigang Li Yong Su
Polytechnic school of Shenyang ligong university, Shenyang, Liaoning, 113122, China School of Mechanical Engineering, Shenyang University of Chemical Technology, Shenyang,Liaoning, 110
国际会议
太原
英文
852-855
2012-06-23（万方平台首次上网日期，不代表论文的发表时间）