周鹏,李杰,樊浩

• 1:西安航空职业技术学院航空材料工程学院

摘要(Abstract)：

采用改变焊接速度来控制焊接热输入的方法,对20 mm厚的热轧态2205双相不锈钢中厚板进行了4组不同热输入条件下的TIG焊焊接实验,对焊接接头的耐晶间腐蚀性能和显微组织进行了测试与分析。结果表明:当焊接热输入Q≤1.9 kJ·mm~(-1)时,焊接接头的晶间腐蚀弯曲表面裂纹发生率高,随着热输入的增大,裂纹发生率逐渐降低,当热输入Q≥2.4 kJ·mm~(-1)时,焊接接头已无晶间腐蚀弯曲表面裂纹出现;当焊接热输入Q值在1.9 kJ·mm~(-1)至2.4 kJ·mm~(-1)范围内,随着焊接热输入的增加,在铁素体基体中的奥氏体相由网格状形态转变为孤岛状、条块状形貌,且均匀弥散分布在基体中,同时焊接接头热影响区中奥氏体相的体积分数逐渐增多。

关键词(KeyWords)： 2205双相不锈钢;焊接热输入;显微组织;晶间腐蚀

Abstract:

Keywords:

基金项目(Foundation): 陕西高校青年创新团队资助项目(2019-73)

作者(Author): 周鹏,李杰,樊浩

DOI: 10.13289/j.issn.1009-6264.2020-0066

参考文献(References)：

• [1] 徐海健,沙孝春,康超,等.固溶处理对节镍型2101双相不锈钢组织及力学性能的影响[J].材料热处理学报,2020,41(2):82-86.XU Hai-jian,SHA Xiao-chun,KANG Chao,et al.Effect of solid solution treatment on microstructure and mechanical properties of low nickel 2101 duplex stainless steel[J].Transactions of Materials and Heat Treatment,2020,41(2):82-86.
• [2] 张志强,荆洪阳,徐连勇,等.UNS S32205双相不锈钢在S2O■/Cl-环境中的应力腐蚀行为[J].材料热处理学报,2019,40(10):9 5-101.ZHANG Zhi-qiang,JING Hong-yang,XU Lian-yong,et al.Stress corrosion behavior of UNS S32205 duplex stainless steel in S2O■/Cl- environment[J].Transactions of Materials and Heat Treatment,2019,40(10):95-101.
• [3] 李国平.超级双相不锈钢2707搅拌摩擦焊焊接接头的组织与性能[J].材料热处理学报,2018,39(10):119-125.LI Guo-ping.Microstructure and mechanical properties of friction stir welded joint of super duplex stainless steel 2707[J].Transactions of Materials and Heat Treatment,2018,39(10):119-125.
• [4] 杨世洲,李春福,李辉,等.饱和H2S环境下慢应变速率对2205双相不锈钢应力腐蚀性能的影响[J].材料热处理学报,2016,37(11):96-102.YANG Shi-zhou,LI Chun-fu,LI Hui,et al.Influence of slow strain rate on stress corrosion cracking of 2205 duplex stainless steel in saturated H2S environment[J].Transactions of Materials and Heat Treatment,2016,37(11):96-102.
• [5] 王建军,温艳慧,吴天海,等.热输入对2205双相不锈钢MIG焊接接头组织及力学性能的影响[J].材料与冶金学报,2016,15(2):137-142.WANG Jian-jun,WEN Yan-hui,WU Tian-hai,et al.Influence of heat input on microstructure and mechanical properties of 2205 DSS metal inert-gas welding joints[J].Journal of Materials and Metallurgy,2016,15(2):137-142.
• [6] 黄杰,陈博文,丁毅,等.热输入对2205双相不锈钢焊接接头性能的影响[J].热加工工艺,2017,46(3):246-248.HUANG Jie,CHEN Bo-wen,DING Yi,et al.Influence of heat input on properties of 2205 duplex stainless steel welded joints[J].Hot Working Technology,2017,46(3):246-248.
• [7] 代维,罗腾奘,王帆,等.不同焊接工艺双相不锈钢焊接接头的组织和力学性能[J].金属热处理,2018,43(5):175-180.DAI Wei,LUO Teng-zhuang,WANG Fan,et al.Microstructure and mechanical properties of duplex stainless steel welded joint under different welding technology[J].Heat Treatment of Metals,2018,43(5):175-180.
• [8] 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.
• [9] 王建军,王杨,吴天海,等.埋弧焊热输入对2205 DSS焊接接头组织及力学性能的影响[J].材料热处理学报,2016,37(10):121-125.WANG Jian-jun,WANG Yang,WU Tian-hai,et al.Influence of heat input on microstructure and mechanical properties of submerged arc welding joints of 2205 duplex stainless steel[J].Transactions of Materials and Heat Treatment,2016,37(10):121-125.
• [10] 张志强,荆洪阳,徐连勇,等.双相不锈钢多层多道焊接接头微观组织表征[J].焊接学报,2017,38(5):79-82.ZHANG Zhi-qiang,JIN Hong-yang,XU Lian-yong,et al.Microstructure characterization of duplex stainless steel multi-pass welded joint[J].Transactions of the China Welding Institution,2017,38(5):79-82.
• [11] 王锡岭,李金燕,蔡俊,等.焊接热输入对核I级E2209-15焊条焊接2205双相不锈钢接头组织和性能的影响[J].金属功能材料,2019,26(6):37-43.WANG Xi-ling,LI Jin-yan,CAI Jun,et al.Effect of welding heat input on microstructure and properties of 2205 duplex stainless steel joint welding by nuclear grade I E2209-15 electrode[J].Metallic Functional Materials,2019,26(6):37-43.
• [12] 贾重雪,赵运强,董春林,等.2205双相不锈钢搅拌摩擦焊接头组织和性能[J].焊接学报,2019,40(3):97-101.JIA Zhong-xue,ZHAO Yun-qiang,DONG Chun-lin,et al.Microstructure and mechanical properties of 2205 duplex stainless steel friction stir welding joint[J].Transactions of the China Welding Institution,2019,40(3):97-101.
• [13] 金锦德.关于焊接热输入公式的探讨[J].焊接,2001(6):42-43.JIN Jin-de.A formula for calculating welding heat input[J].Welding and Joining,2001(6):42-43.
• [14] 马红征,杨军红,翟同德,等.304不锈钢晶间腐蚀敏感性的评定[J].理化检验(物理分册),2011,47(11):686-689.MA Hong-zheng,YANG Jun-hong,ZHAI Tong-de,et al.Evaluation of intergranular corrosion sensitivity of 304 stainless steel[J].Physical Testing and Chemical Analysis (Part A:Physical Testing),2011,47(11):686-689.
• [15] 董建君,张志昌,周弋琳,等.2205双相不锈钢焊接工艺研究[J].热加工工艺,2013,42(17):161-163.DONG Jian-jun,ZHANG Zhi-chang,ZHOU Yi-lin,et al.Research on welding process of 2205 duplex stainless steel[J].Hot Working Technology,2013,42(17):161-163.

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