THE INFLUENCE OF NIOBIUM ON THE MICROSTRUCTURE AND PROPERTIES OF CrMo STEEL
In this paper,against the actual operating condition of the low alloy CrMo wear-resistant steel liner plate,the influence of Nb on the microstructure and properties of the low alloy CrMo steel were investigated based on the reasonable chemical composition design,got excellent combination of hardness and impact toughness to reach the requirements of liner.It is found that,with the treatment of 920(8h)+550(20h),adding 0.03wt%Nb could refine and homogenize the grain structure and the lamella spacing of matrix is smaller.Tensile strength and elongation are similar in both alloys with and without Nb,while increases hardness by 16%,which is benefit to the wear resistance.
CrMo steel heat treatment Nb
Xiangru Chen Ming You Ai’min Guo Wei Zhang Haicheng Li Yang Xu Qijie Zhai
State Key Laboratory of Advanced Special Steel,Shanghai University,Shanghai,China CITIC Heavy Machinery Limited by Share Ltd,Luoyang,China CITIC Metal,Capital Mansion 1903,Beijing,China
国内会议
杭州
英文
589-595
2015-11-11（万方平台首次上网日期，不代表论文的发表时间）