Effect of Ca treatment on sulfides morphology in S-bearing non-quenched and tempered steel
YAO Deng-yuan1，WU Hua-jie2，LU Peng-yan1，YUE Feng2，ZHANG Yong-chao1
（1. Institute of Engineering Technology， University of Science and Technology Beijing， Beijing 100083， China 2. Collaborative Innovation Center of Steel Technology， University of Science and Technology Beijing， Beijing 100083， China）
Abstract：The influence of calcium treatment on the sulfide morphology in the S-bearing non-quenched and tempered steel was studied by the small furnace experiment in the laboratory. The results showed that the pure manganese sulfide in the ingot was transferred into calcium aluminum composite sulfides after calcium treatment. In addition，the fraction of sulfide whose aspect ratio was within 1-2 apparently increased after calcium treatment. Similarly，the fraction of sulfide whose aspect ratio was within 1-3 in the calcium treated samples apparently increased after rolling. The results indicated that calcium treatment can effectively improve the sulfide morphology and make more sulfide transferred into spindle-shaped. As a consequence，the performance of steel was improved.
姚登元，吴华杰，陆鹏雁，岳峰，张永超. 钙处理对含硫非调质钢中硫化物形态的影响[J]. 中国冶金, 2017, 27(4): 11-16.
YAO Deng-yuan，WU Hua-jie，LU Peng-yan，YUE Feng，ZHANG Yong-chao. Effect of Ca treatment on sulfides morphology in S-bearing non-quenched and tempered steel. China Metallurgy, 2017, 27(4): 11-16.
2017, Vol. 27 
