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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1100℃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.
The effect of different inclusions in steel on the enrichment behavior of Sb during high temperature oxidation was studied.The main precipitation sites of Sb in steel at 1100 ℃ in Fe-1.5% Sb alloy were grain boundary.With the single oxide Compared with inclusions, manganese sulfide is a more effective Sb heterogeneous nucleus, and the composition of Sb precipitates is close to that of FeSb phase. The experimental results are consistent with the theoretical calculation results of two-dimensional mismatch. By reducing the oxygen content, Addition of Ti-modified manganese sulfide inclusions and other ways, increasing the amount of MnS, making more Sb precipitated on the inclusions, thereby reducing the segregation and solid solution of Sb in steel, changing Sb precipitation in the steel position.