中文摘要：

研究了钢中不同夹杂物对Sb的析出和高温氧化过程中富集行为的影响．Fe-1．5％Sb合金ii00℃水冷试样中Sb在钢中主要析出位置是晶界．与单一的氧化物夹杂相比，硫化锰是更为有效的Sb异质形核核心，且Sb析出相成分组成接近于FeSb相．实验结果与二维错配度理论计算结果相一致．通过降低氧含量，钢中加入Ti变质硫化锰夹杂等方式，增加了MnS数量，使得更多的Sb在夹杂物上析出，从而减少钢中Sb的偏析和固溶量，改变Sb在钢中的析出位置．

英文摘要：

The effects of different inclusions on antimony precipitation and enrichment in steel during high- temperature oxidation were investigated. It is found that in the Fe-1.5%Sb alloy specimen, antimony-enriched phases precipitate at grain boundaries after water-quenching at 1100℃. Manganese sulfide is more favorable for antimony precipitation than oxide inclusions. The chemical composition of antimony-enriched phases is close to that of FeSb, which is consistent with the result calculated by the disregistry of lattice parameters between antimony particles and the inclusions. Reducing the oxygen content or adding Ti in steel can increase the amount of manganese sulfide and promote antimony precipitation, thereby decrease the amount of antimony segregation and solid solution, and change the precipitation location of Sb in steel.