[1]趙艷,李秀宇,管建軍,等.低熔點金屬Sn與2205雙相不銹鋼的交互作用行為[J].中國材料進展,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]
點擊復制
低熔點金屬Sn與2205雙相不銹鋼的交互作用行為(
)
中國材料進展[ISSN:1674-3962/CN:61-1473/TG]
- 卷:
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- 期數(shù):
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2018年第04期
- 頁碼:
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077-80
- 欄目:
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研究報告
- 出版日期:
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2018-04-30
文章信息/Info
- Title:
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Interaction Behavior Between Low Melting Point Sn and 2205 Double Stainless Steel
- 作者:
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趙艷; 李秀宇; 管建軍; 劉峰; 梁平
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遼寧石油化工大學機械工程學院，遼寧 撫順 113001
- Author(s):
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ZHAO Yan; LI Xiuyu; GUAN Jianjun; LIU Feng; LIANG Ping
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School of Mechanical Engineering, Liaoning Shihua University, Fushun 113001, China
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- 關(guān)鍵詞:
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低熔點金屬Sn; 2205雙相不銹鋼; 交互作用
- Keywords:
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low melting point metal Sn; 2205 double stainless steel; interaction; passive film; themodynamic calculation
- DOI:
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10.7502/j.issn.1674-3962.2018.04.11
- 文獻標志碼:
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A
- 摘要:
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研究了液態(tài)Sn與2205雙相不銹鋼的交互作用，評價低熔點金屬Sn對不銹鋼的污染行為。采用金相顯微鏡和掃描電子顯微鏡觀察交互作用前后樣品的形貌，采用能譜分析儀線掃描和面掃描檢測Sn污染不銹鋼后樣品的元素分布，通過熱力學計算分析不銹鋼表面鈍化膜在液態(tài)Sn中的穩(wěn)定性，進而揭示Sn與2205雙相不銹鋼的交互作用機理。結(jié)果表明，Sn與2205雙相不銹鋼以形成FeSn化合物的形式發(fā)生交互作用從而形成化學冶金結(jié)合。在奧氏體區(qū)存在化合物粘附，而鐵素體區(qū)未見化合物粘附，Sn的選擇性粘附與兩相區(qū)的化學成分差異有關(guān)。通過熱力學計算得出鈍化膜主要成分Cr2O3與Sn不發(fā)生化學反應，鈍化膜能夠作為物理障礙阻止Sn污染，不完整的鈍化膜使原子之間相互擴散反應造成Sn污染。
- Abstract:
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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 FeSn 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