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铜铝管钎焊接头耐腐蚀性研究 预览

The Corrosion-resistance Research on Cu-Al Pipe Brazed Joint
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摘要 含Zn-Al钎料的铜铝焊接接头在制冷行业中不可避免地要接触腐蚀介质。本实验研究了铜铝管钎焊接头在盐雾条件下的腐蚀现象,应用扫描和能谱手段表征腐蚀后的样品,并对其腐蚀机理进行分析。研究表明,铜铝钎焊接头的腐蚀主要发生于钎料层,腐蚀过程以钎料层的腐蚀破坏为主,伴有大量腐蚀坑。随着时间的延长,腐蚀介质沿着腐蚀产生的缝隙逐渐向内部浸渗使腐蚀纵深扩展。盐雾腐蚀的本质是电化学腐蚀。钎焊过程中,沿晶界析出的一些脆性相因电位较低成为优先腐蚀部位,表现为晶界腐蚀。 Cu/Al joints brazed with Zn-Al filler metals inevitably contact with corrosive medium.This experiment studied the corrosion behavior of Cu-Al pipe brazed joint under salt spray test,characterizing the sample corroded by the means of SEM and EDS,and the corrosion mechanism is analyzed.This study showed that the corrosion for Cu-Al pipe brazed joint mainly happens on the solder layer with a lot of corrosion pit. With the lengthening of corrosion time,penetration of corrosive medium into corrosion cracks results in corrosive expansion to depth.The nature of salt spray test is electrochemical corrosion,in the process of brazing, some brittle phases in the grain boundary become the preferred corrosion parts due to low potential,performance for grain boundary corrosion.
作者 陈德娟 李军峰 王昕 赵越 Chen Dejuan;Li Junfeng;Wang Xin;Zhao Yue;Ocean University of China;Haier Medical and Laboratory Products Co.Ltd.;
出处 《电器》 2013年第S1期657-660,共4页 China Appliance
关键词 钢铝管 钎焊接头 ZN-AL钎料 盐雾腐蚀 Cu-Al pipe Brazed joint Zn-Al filler metals Salt spray corrosion
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  • 1柯黎明,刘鸽平,邢丽,夏春.铝合金LF6与工业纯铜T1的搅拌摩擦焊工艺[J].中国有色金属学报,2004,14(9):1534-1538. 被引量:24
  • 2苏文英,阎玉芹.铝—铜火焰钎焊材料研究[J].北京工业大学学报,1994,20(4):45-51. 被引量:17
  • 3LEE W B,BANG K S,JUNG S B.Effects of intermetallic compounds on the electrical and mechanical properties of friction welded Cu/Al bimetallic joints during annealing[J].Journal of Alloys and Compounds,2005,390(1-2):212-219. 被引量:1
  • 4QUYANG JIAHU,YARRAPAREDDY E,KOVACEVIC R.Microstructural evolution in the friction stir welded 6061 aluminum alloy (T62 temper condition) to copper[J].Journal of Materials Processing Technology,2006,172(1):110-122. 被引量:1
  • 5XIA C Z,LI Y J,WANG J,et al.Microstructure and phase constitution near interface of Cu/Al vacuum brazing[J].Materials Science and Technology,2007,23(7):815-818. 被引量:1
  • 6陶亦亦,张义平,姜左.Al2O3P/Al复合材料钎焊的试验研究[J].热加工工艺,2007,36(15):14-16. 被引量:2
  • 7王元良.高速列车焊接技术[M].北京:铁道出版社,2011. 被引量:1
  • 8Wang Zhenyao, Ma Teng, Hart Wei, et al. Corrosion behavior on aluminum alloy LY12 in simulated atmospheric corrosion process [ J]. Transactions of Nonferrous Metals Science of China, 2007, 37 ( 3 ) : 326 - 334. 被引量:1
  • 9Ellis M B D. [J]. Intemational Materials Reviews,1996,41 (2): 41-58. 被引量:1
  • 10Brown R H, Fink W L.[J]. Trans. AIME,1941,143:115-123. 被引量:1

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