Abstract：The effect of reheating temperature on the structure and morphology of MnS+Al2O3 compound inclusions in wheel steel with high Sulphur content has been studied.Scanning electron microscopy (SEM) had been employed to investigate the microstructure and size of MnS＋Al2O3 compound inclusions. The results showed that： when reheated at 1 300 ℃， compound structure of MnS-surrounding-Al2O3 was not significantly destroyed due to slight re-dissolution of sulfide. However， when the reheating temperature was raised up to 1 350 ℃， many oxide inclusions are directly exposed to the steel matrix because of obvious sulfide re-dissolution.Therefore， the hot working temperature should not be beyond 1 300 ℃ in order to reduce the influence of MnS re-dissolution on the surrounding effect of Mn Son Al2O3 in the sulfur containing wheel steels.
李 丽，薛东妹，潘 涛，余音宏，陈 刚，苏 航，杨才福. 加热温度对高硫车轮钢夹杂物化学冶金的影响[J]. 中国钢铁期刊网, 2017, 36(03): 43-48.
LI Li，XUE Dong-mei，PAN Tao，YU Yin-hong，CHEN Gang，SU Hang，YANG Cai-fu. Reheating temperatures on chemical metallurgy of inclusions in high sulphur wheel steels. Chinese Journal of Iron and Steel, 2017, 36(03): 43-48.
Tsunekage N, Tsubakino H. Effects of sulfur content and sulfide-forming elements addition on impact properties of ferrite-pearlitic microalloyd steels [J]. ISIJ Inter., 2001, 41(5): 498-505.
2017, Vol. 36 
