[1]赵艳,李秀宇,管建军,等.低熔点金属Sn与2205双相不锈钢的交互作用行为[J].中国材料进展,2018,(04):077-80.[doi:10.7502/j.issn.1674-3962.2018.04.11]
 ZHAO Yan,LI Xiuyu,GUAN Jianjun,et al.Interaction Behavior Between Low Melting Point Sn and 2205 Double Stainless Steel[J].MATERIALS CHINA,2018,(04):077-80.[doi:10.7502/j.issn.1674-3962.2018.04.11]
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低熔点金属Sn与2205双相不锈钢的交互作用行为()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2018年第04期
页码:
077-80
栏目:
研究报告
出版日期:
2018-04-30

文章信息/Info

Title:
Interaction Behavior Between Low Melting Point Sn and 2205 Double Stainless Steel
作者:
赵艳李秀宇管建军刘峰梁平
辽宁石油化工大学机械工程学院,辽宁 抚顺 113001
Author(s):
ZHAO Yan LI Xiuyu GUAN Jianjun LIU Feng LIANG Ping
School of Mechanical Engineering, Liaoning Shihua University, Fushun 113001, China
关键词:
低熔点金属Sn2205双相不锈钢交互作用
Keywords:
low melting point metal Sn 2205 double stainless steel interaction passive film themodynamic calculation
DOI:
10.7502/j.issn.1674-3962.2018.04.11
文献标志码:
A
摘要:
研究了液态Sn与2205双相不锈钢的交互作用,评价低熔点金属Sn对不锈钢的污染行为。采用金相显微镜和扫描电子显微镜观察交互作用前后样品的形貌,采用能谱分析仪线扫描和面扫描检测Sn污染不锈钢后样品的元素分布,通过热力学计算分析不锈钢表面钝化膜在液态Sn中的稳定性,进而揭示Sn与2205双相不锈钢的交互作用机理。结果表明,Sn与2205双相不锈钢以形成FeSn化合物的形式发生交互作用从而形成化学冶金结合。在奥氏体区存在化合物粘附,而铁素体区未见化合物粘附,Sn的选择性粘附与两相区的化学成分差异有关。通过热力学计算得出钝化膜主要成分Cr2O3与Sn不发生化学反应,钝化膜能够作为物理障碍阻止Sn污染,不完整的钝化膜使原子之间相互扩散反应造成Sn污染。
Abstract:
Interaction between liquid Sn and 2205 double stainless steel was investigated, and the contamination behavior of low melting point metal Sn on stainless steel was evaluated. The micromorphology of the samples before and after the interaction was observed by metallurgical microscope and scanning electron microscope. The element composition of the samples after the interaction was detected by line scanning and mapping scanning using energy dispersive spectrometer. The stability of passive film in liquid Sn was analyzed by thermodynamic calculation. Then the interaction mechanism between Sn and 2205 stainless steel can be revealed. The results showed that Sn reacted with stainless steel by the formation of FeSn intermetallics for metallurgical bonding. The intermetallics adherency was observed on austenite but ferrite, which was related with the difference on Cr content. The thermodynamic calculation results indicated that Cr2O3 did not react with Sn. Sn contamination had been prevented by the passive film as a physical barrier. On the surface of 2205 double stainless, Sn contamination was caused by the atomic diffusion reaction through the incomplete passive film.
更新日期/Last Update: 2018-05-08