Effect of manganese sulfide on the precipitation behavior of tin in steel
来源期刊：International Journal of Minerals Metallurgy and Materials2014年第7期
论文作者：Gui-lin Sun Bo Song Ling-zhi Yang Su-fen Tao
文章页码：654 - 659
摘 要：Tramp elements such as tin are considered harmful to steel because of hot brittleness they induce at high temperatures.Because tramp elements retained in steel scrap will be enriched in new steel due to the difficultly of their removal,studies on the precipitation behavior of tin are essential.In this study,the effects of different inclusions on the precipitation behavior of tin in steel were studied.The results show that the tin-rich phase precipitates at austenite grain boundaries in an Fe-5%Sn alloy without MnS precipitates,whereas Sn precipitates at the boundaries of MnS inclusions in steel that contains MnS precipitates.MnS is more effective than silicon dioxide or aluminum oxide as a nucleation site for the precipitation of the tin phase,which is consistent with the disregistry between the lattice parameters of the tin phase and those of the inclusions.
Gui-lin Sun1,2，Bo Song1,2，Ling-zhi Yang1,2，Su-fen Tao1,2
1. State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing2. School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing
摘 要：Tramp elements such as tin are considered harmful to steel because of hot brittleness they induce at high temperatures.Because tramp elements retained in steel scrap will be enriched in new steel due to the difficultly of their removal,studies on the precipitation behavior of tin are essential.In this study,the effects of different inclusions on the precipitation behavior of tin in steel were studied.The results show that the tin-rich phase precipitates at austenite grain boundaries in an Fe-5%Sn alloy without MnS precipitates,whereas Sn precipitates at the boundaries of MnS inclusions in steel that contains MnS precipitates.MnS is more effective than silicon dioxide or aluminum oxide as a nucleation site for the precipitation of the tin phase,which is consistent with the disregistry between the lattice parameters of the tin phase and those of the inclusions.
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