郭卫,孔德军

• 1:常州大学机械工程学院
• 2:江苏省材料表面科学与技术重点实验室常州大学

摘要(Abstract)：

利用CO2激光对1Cr5Mo耐热钢焊接接头进行表面热处理,通过慢应变速率试验研究激光热处理对其在NACE溶液中应力腐蚀开裂敏感性的影响。利用扫描电镜分析了激光热处理前后焊接接头断口形貌和腐蚀物化学成分组成,探讨了扫描速度对焊接接头应力腐蚀性能的影响机理。结果表明,激光热处理后焊接接头抗应力腐蚀性提高,腐蚀敏感性指数由33.9%下降到23%;激光扫描速度对1Cr5Mo耐热钢焊接接头应力腐蚀性能有一定的影响,其中扫描速度为400 mm/min时应力腐蚀敏感指数最小。

关键词(KeyWords)： 激光热处理;1Cr5Mo高温钢;焊接接头;慢拉伸试验;应力腐蚀

Abstract:

Keywords:

基金项目(Foundation): 江苏省研究生科研创新计划项目(CXLX14-1098);; 江苏省科协首席专家(工程师)项目(2013-216)

作者(Author): 郭卫,孔德军

DOI: 10.13289/j.issn.1009-6264.2015.08.036

参考文献(References)：

• [1]邹杨,潘春旭,傅强,等.Cr5Mo异种钢焊接融合区H2S腐蚀过程的原位观察[J].金属学报,2005,41(4):421-426.ZOU Yang,PAN Chun-xu,FU Qiang,et al.In situ observations for corrosion process at fusion boundary of Cr5Mo dissimilar steel welded joints in H2S containing solution[J].Acta Metallurgica Sinica,2005,41(4):421-426.
• [2]ZHAO J,HAN S Q,XIE S M,et al.Remaining life assessment of a 1Cr5Mo steel by using Z parameter method[J].Acta Metallurgica Sinica,2004,17(4):601-605.
• [3]王小红,施宜君,邵春宇,等.高硫高酸值原油温度对1Cr5Mo钢耐蚀性能的影响[J].材料热处理学报,2013,34(10):160-164.WANG Xiao-hong,SHI Yi-jun,SHAO Chun-yu,et al.Effect of high sulfur and high acid value crude oil temperature on corrosion resistance of1Cr5Mo steel[J].Transactions of Materials and Heat Treatment,2013,34(10):160-164.
• [4]陈嵩.1Cr5Mo钢高温应力腐蚀及防护方法的研究现状[J].热加工工艺,2013,42(12):29-32.CHEN Song.Research status of high temperature stress corrosion and protective methods for 1Cr5Mo steel[J].Hot Working Technology,2013,42(12):29-32.
• [5]吴永忠,孔德军,龙丹,等.激光冲击对X70管线钢焊缝盐雾腐蚀的影响[J].焊接学报,2012,33(12):101-104.WU Yong-zhong,KONG De-jun,LONG Dan,et al.Effects of laser shock wave on salt spray corrosion of X70 pipeline steel welded lines[J].Transactions of the China Welding Institution,2012,33(12):101-104.
• [6]孔德军,吴永忠,龙丹,等.激光冲击处理对X70管线钢焊接接头H2S应力腐蚀影响[J].中国腐蚀与防护学报,2011,31(2):125-129.KONG De-jun,WU Yong-zhong,LONG Dan,et al.Effects of laser shock processing on H2S stress corrosion of X70 pipeline steel welded joints[J].Journal of Chinese Society for Corrosion and Protection,2011,31(2):125-129.
• [7]李连进,宗卫兵.1Cr5Mo合金无缝钢管的热处理工艺研究[J].石油机械,2006,34(12):4-6.LI Lian-jin,ZONG Wei-bing.Study of heat treatment process of 1Cr5Mo alloy seamless steel pipe[J].China Petroleum Machinery,2006,34(12):4-6.
• [8]何强,苏华字,刘宏昭,等.高速主轴用40Cr钢的激光相变硬化工艺[J].中国激光,2009,36(8):2192-2196.HE Qiang,SU Hua-yu,LIU Hong-zhao,et al.Research on 40Cr steel for high-speed spinde laser transformation hardening technics[J].Chinese Journal of Lasers,2009,36(8):2192-2196.
• [9]郑晓华,宋仁国,姚建华.镍-磷-纳米氧化铝化学镀层的激光热处理及其摩擦磨损性能[J].中国激光,2008,35(4):610-614.ZHENG Xiao-hua,SONG Ren-guo,YAO Jian-hua.Laser heat treatment and wear resistance of electroless plating Ni-P-Nano-Al2O3composite coatings[J].Chinese Journal of Lasers,2008,35(4):610-614.
• [10]梁二军,梁会琴.激光淬火及熔覆层性能与物相变化的拉曼光谱研究[J].中国激光,2006,33(1):120-123.LIANG Er-jun,LIANG Hui-qin.Study on the properties and phase transition in laser quenching and cladding layers by Raman Spectroscopy[J].Chinese Journal of Lasers,2006,33(1):120-123.
• [11]Soundarapandian Santhanakrishnan,Radovan Kovacevic.Hardness prediction in multi-pass direct diode laser heat treatment by on-line surface temperature monitoring[J].Journal of Materials Processing Technology,2012,212(11):2261-2271.
• [12]ZHU Min,DU Cui-wei,LI Xiao-gang,et al.Effect of AC on stress corrosion cracking behavior and mechanism of X80 pipeline steel in carbonate/bicarbonate solution[J].Corrosion Science,2014,87(8):224-232.
• [13]KONG De-jun,YE Cun-dong.Effects of laser heat treatment on fracture morphologies of X80 pipeline steel welded joints by stress corrosion[J].International Journal of Minerals,Metallurgy and Materials,2014,21(9):898-905.

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