任永峰,张凌峰,查小琴,黑鹏辉,翟智梁

• 1:河南科技大学材料科学与工程学院
• 2:中国船舶重工集团公司第七二五研究所
• 3:河南省船舶及海工装备结构材料技术与应用重点实验室
• 4:洛阳双瑞特种装备有限公司

摘要(Abstract)：

采用光学显微镜、透射电镜、X射线应力仪、拉伸试验机、点蚀及晶间腐蚀试验、电化学工作站等研究了3种不同消除应力处理方式(风铲、超声处理、焊后热处理)对S32205双相不锈钢药芯MIG焊接接头组织和性能的影响。结果表明,风铲和超声处理消除焊缝残余应力效果明显,焊缝表面在X和Y向均表现为压应力;风铲和超声处理提高了焊缝中奥氏体含量的同时降低了铁素体含量,且超声处理后的焊缝表面形成一层50～100μm的晶粒细化层,一定程度上提高了焊缝硬度。250℃×24 h焊后热处理后仅发生了应力再分配,焊缝表面在X和Y向均表现为拉应力,焊缝处未发生相变,焊缝硬度相对于未处理试样明显降低。风铲、超声处理以及焊后热处理均能改善焊缝腐蚀性能,其中抗点蚀性能改善最为明显,相对于未处理试样而言,超声处理试样点蚀速率最小,风铲处理试样次之,焊后热处理试样最大。

关键词(KeyWords)： 2205双相不锈钢;焊接;消除应力处理;残余应力;腐蚀;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目(2016YFC0401204)

作者(Author): 任永峰,张凌峰,查小琴,黑鹏辉,翟智梁

DOI: 10.13289/j.issn.1009-6264.2020-0073

参考文献(References)：

• [1] Mourad A H I,Khourshid A,Sharef T.Gas tungsten arc and laser beam welding processes effects on duplex stainless steel 2205 properties[J].Materials Science and Engineering A,2012,549:105-113.
• [2] Lim H,Kim P,Jeong H,et al.Enhancement of abrasion and corrosion resistance of duplex stainless steel by laser shock peening[J].Journal of Materials Processing Technology,2012,212(6):1347-1354.
• [3] Fan G W,Liu J,Han P D,et al.Hot ductility and microstructure in casted 2205 duplex stainless steels[J].Materials Science and Engineering A,2009,515(1/2):108-112.
• [4] Sathiya P,Aravindan S,Soundararajan R,et al.Effect of shielding gases on mechanical and metallurgical properties of duplex stainless-steel welds[J].Journal of Materials Science,2009,44(1):114-121.
• [5] Xu J L,Deng B,Sun T,et al.Evaluation of the susceptibility to intergranular attack of 2205 duplex stainless steel by DL-EPR method[J].Acta Metallurgica Sinica,2010,46(3):380-384.
• [6] Lacerda C D J,Candido L C,Godefroid L B.Effect of volume fraction of phases and precipitates on the mechanical behavior of UNS S31803 duplex stainless steel[J].International Journal of Fatigue,2015,74:81-87.
• [7] Chen Y L,Luo Z Y,Li J Y.Effect of solution temperature on microstructure and pitting corrosion resistance of S32760 duplex stainless steel[J].Acta Metallurgica Sinica,2015,51(9):1085-1091.
• [8] Sathiya P,Aravindan S,Soundararajan R,et al.Effect of shielding gases on mechanical and metallurgical properties of duplex stainless-steel welds[J].Journal of Materials Science,2009,44(1):114-121.
• [9] 周振丰.焊接冶金学[M].北京:机械工业出版社,1995:67-82.
• [10] Cho J,Lee C H.FE analysis of residual stress relaxation in a girth-welded duplex stainless steel pipe under cyclic loading[J].International Journal of Fatigue,2016,82:462-473.
• [11] Alam M K,Edrisy A,Urbanic J,et al.Microhardness and stress analysis of laser-cladded AISI 420 martensitic stainless steel[J].Journal of Materials Engineering and Performance,2017,26(3):1076-1084.
• [12] Vinoth Jebara J A,Sugavaneswaran M.Influence of shot peening on residual stress distribution and corrosion resistance of additive manufactured stainless steel AISI 316L[J].Transactions of the Indian Institute of Metals,2019,72(6):1651-1653.
• [13] GB/T 7704—2017,无损检测X射线应力测定方法[S].北京:中国标准出版社,2017.
• [14] GB/T 2651—2008,焊接接头拉伸试验方法[S].北京:中国标准出版社,2008.
• [15] GB/T 2654—2008,焊接接头硬度试验方法[S].北京:中国标准出版社,2008.
• [16] GB/T 17897—2016,金属和合金的腐蚀-不锈钢三氯化铁点腐蚀试验方法[S].北京:中国标准出版社,2016.
• [17] ASTM A262-2015 B,Standard practices for detecting susceptibility to intergranular attack in austenitic stainless steels[S].United States,ASTM International,2015.
• [18] Deng D,Murakawa H.Numerical simulation of temperature field and residual stress in multi-pass welds in stainless steel pipe and comparison with experimental measurements[J].Computational Materials Science,2006,37(3):269-277.
• [19] 李国平,王建军,吴天海,等.2205双相不锈钢TIG焊接头组织及力学性能[J].材料研究学报,2016,30(12):897-902.LI Guo-ping,WANG Jian-jun,WU Tian-hai,et al.Microstructure and mechanical properties of 2205 DSS metal Inert-gas welding joints[J].Chinese Journal of Materials Research,2016,30(12):897-902.
• [20] 刘洁,李睿,范光伟,等.超级双相不锈钢SAF2507焊接热模拟组织的耐点蚀性[J].材料热处理学报,2015,36(10):77-82.LIU Jie,LI Rui,FAN Guang-wei,et al.Pitting corrosion behavior of simulated heat affected zone in SAF2507 super duplex stainless steel[J].Transactions of Materials and Heat Treatment,2015,36(10):77-82.
• [21] Cabrera J M,Mateo A,Llanes L,et al.Hot deformation of duplex stainless steels[J].Journal of Materials Processing Technology,2003(1):321-325.
• [22] Evangelista E,Mcqueen H J,Niewczas M,et al.Hot workability of 2304 and 2205 duplex stainless steels[J].Canadian Metalluigical Quarterly,2004,43(3):339-353.
• [23] Gartias-Mesias L F,Skyes J M.The effect of phase compositions on the pitting corrosion of 25Cr duplex stainless steel in chloride solutions[J].Corrosion Science,1996,38(8):1319-1330.
• [24] Perren R A,Suter T A,Uggowitzer P J,et al.Corrosion resistance of super duplex stainless steels in chloride ion containing environments:investigations by means of a new microelectrochemical method:I.Precipitation-free states[J].Corrosion Science,2001,43(4):707-726.

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