Effect of Boron on High Temperature Plastic Deformation Behavior of HSLA Steel 在线阅读 下载PDF
Author of the article:JIN Ying;ZHU Jianlei;DENG Chao;CUI Huijuan
Author's Workplace：School of Mechanical and Electrical Technology,Xianyang Vocational Technical College,Xianyang 712000,China;School of Materials Science and Engineering,Xi'an University of Technology,Xi'an 710048,China
Key Words：boron micro-alloying dynamic recrystallization fracture behavior high temperature plasticity high temperature tensile
Abstract：The effect of boron on the plastic deformation behavior of HSLA steel at high temperature was studied by high temperature tensile test.Section shrinkage,force-stroke curve and microstructure of fracture were studied at different temperatures.The results show that the thermoplasticity of boron tested steel is improved obviously,and its plastic trough becomes shallower.On the other hand,boron can strengthen austenite grain boundaries and play a role of stress accumulation,and then generate enough driving force and activation energy to advance the dynamic recrystallization,so that the high plastic zone to the low temperature zone shift.
