Effect of Mo content on mechanical properties of Ti micro-alloyed low carbon steelChinese Full Text
Wang Xiaopei;Zhao Zhengzhi;Zhao Aimin;Geng Zhida;Sheet Metal Research Institute,Shougang Research Institute of Technology;Metallurgy Engineering Research Institute,University of Science and Technology Beijing;
Abstract: Microstructure and mechanical properties of Ti micro-alloyed low-carbon steel and Ti-Mo steels with different Mo /Ti atomic ratio proportion were investigated,and morphology,distribution of nanometer-sized carbides were studied by transmission electron microscope（ TEM）. The results show that the strength of the Ti micro-alloyed steel increases significantly by adding Mo. When the Ti content is a constant,the tensile strength and yield strength of the steel firstly increase and then descend with the increase of Mo content. Among the Mo /Ti atomic ratio of 0. 7,1. 1 and 1. 3,the mechanical properties of the tested steel with an Mo /Ti atomic ratio of 0. 7 are the best,the tensile strength of which can achieve 825 MPa.
Keywords：
Mo content; composition proportion; micro-alloyed low carbon steel; mechanical property; precipitation;
- DOI：
10.13251/j.issn.0254-6051.2014.10.012
- Series：
- Subject：
- Classification Code：
TG142.33
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