摘要
通过实验室小炉试验研究钙处理对中硫非调质钢中硫化物形态的影响。结果表明,钙处理后铸坯中硫化物由纯硫化锰转化为含钙铝的复合硫化物,长宽比在1~2区间内的硫化物比例明显提高;在轧制后,经过钙处理的试样中硫化物的长宽比也更多地集中在1~3区间内,这说明钙处理有效改善了钢中硫化物的形态特征,使得更多的硫化物呈纺锤状,提高了钢材性能。
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 1-2apparently increased after calcium treatment.Similarly,the fraction of sulfide whose aspect ratio was within 1-3in 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.
作者
姚登元
吴华杰
陆鹏雁
岳峰
张永超
YAO Deng-yuan WU Hua-jie LU Peng-yan YUE Feng ZHANG Yong-chao(Institute of Engineering Technology, University of Science and Technology Beijing, Beijing 100083, China Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China)
出处
《中国冶金》
CAS
2017年第4期11-16,共6页
China Metallurgy
基金
中央高校基本科研业务费资助项目(FRF-TP-15-062A3)
关键词
含硫非调质钢
硫化物
钙处理
长度分布
长宽比分布
S-bearing non quenched and tempered steel
sulfides
calcium treatment
length distribution
aspect ratio distribution