刘松涛,郭春富,余陈,杨晨,王海燕,张宇鹏

• 1:广东省科学院中乌焊接研究所
• 2:广东省材料连接与先进制造重点实验室
• 3:沈阳工业大学材料科学与工程学院

摘要(Abstract)：

为探究厚板多层多道焊中不同焊道组织性能的差异，采用H10Mn2焊丝和CHF101助焊剂对30 mm厚Q355ND钢进行多层多道双丝埋弧焊，对表面焊道(SWB)和根部焊道(RWB)的微观组织性能进行分析。结果表明：表面焊道与根部焊道的微观组织与力学性能存在一定差异：表面焊道由块状铁素体、下贝氏体和少量珠光体组成，根部焊道由铁素体、贝氏体和马氏体组成；表面焊道硬度分布呈“几”形，热影响区与熔合区硬度接近，硬度最高点位于热影响区，为207.3 HV0.3,最低点位于母材，为172.6 HV0.3;根部焊道硬度分布呈M型，硬度最高点出现在靠近焊缝中心的熔合区，最高可达218.1 HV0.3,焊缝中心硬度最低为178.0 HV0.3,略高于母材；根部焊道与表面焊道拉伸试样均断裂在远离焊缝的母材部分，根部焊道平均抗拉强度为514.84 MPa,表面焊道平均抗拉强度为512.08 MPa,为脆性断裂与韧性断裂相结合的复合断裂形式，且伴有颗粒状析出物生成；根部焊缝平均冲击吸收能量172.17 J,表面焊缝平均冲击吸收能量173.33 J,冲击试样均为脆性断裂与韧性断裂的混合断裂，但表面焊道冲击断口解理面较小，韧窝更深；表面焊缝开路电位最正，钝化区间最大，且极化曲线右移，耐蚀性相对更优。

关键词(KeyWords)： 高强钢;多层多道焊;双丝埋弧焊;焊缝组织;电化学腐蚀

Abstract:

Keywords:

基金项目(Foundation): 广东省海洋经济发展(海洋六大产业)专项资金项目资助(粤自然资合[2024]24号)

作者(Author): 刘松涛,郭春富,余陈,杨晨,王海燕,张宇鹏

DOI: 10.13289/j.issn.1009-6264.2025-0288

参考文献(References)：

• [1] 骆文泽，成慧梅，刘红艳，等.高强钢Q960E对接接头残余应力与焊接变形的数值模拟[J].中国机械工程，2023,34(17):2095-2105.LUO Wen-ze,CHENG Hui-hai,LIU Hong-yan,et al.Numerical simulation of residual stress and welding deformation for high strength steel Q960E butt-welded Joints[J].China Mechanical Engineering,2023,34(17):2095-2105.
• [2] 张庆玲，金淼，张荣强，等.多种循环加载制度下Q235材料性能试验[J].中国机械工程，2019,30(21):2527-2533.ZHANG Qing-ling,JIN Miao,ZHANG Rong-qiang,et al.Material performance tests of Q355 under multiple cyclic loading conditions[J].China Mechanical Engineering,2019,30(21):2527-2533.
• [3] 陈浩，张晓，朱瑞芳.Q355钢焊接性及其与Q345钢焊接技术的关键比较[J].电焊机，2022,52(2):109-113.CHEN Hao,ZHANG Xiao,ZHU Rui-fang.Weldability of Q355 steel and key comparison of welding technology between it and Q345 steel[J].Electric Welding Machine,2022,52(2):109-113.
• [4] 许冰，许鸿吉，陈增有，等.WELDOX960E高强钢手工电弧焊焊接接头组织与力学性能[J].大连交通大学学报，2014,35(4):61-64.XU Bing,XU Hong-ji,CHEN Zeng-you,et al.Microstructures and mechanical properties of WELDOX960E high strength alloy manual arc welding Joint[J].Journal of Dalian Jiaotong University,2014,35(4):61-64.
• [5] 张欣.Q550D低合金高强钢在塔式起重机的焊接工艺研究及应用[J].机械管理开发，2025,40(2):248-250+253.ZHANG Xin.A study of welding process for Q550D low alloy high strength steel for tower crane jib[J].Mechanical Management and Development,2025,40(2):248-250+253.
• [6] 冯伟，于庭祥，徐锴，等.1000 MPa级高强钢埋弧焊熔敷金属组织及性能[J].焊接，2023(11):6-12.FENG Wei,YU Ting-xiang,XU Kai,et al.Microstructure and properties of submerged arc weld metal of 1000 MPa grade high strength steel[J].Welding and Joining,2023(11):6-12.
• [7] 王春伟.双丝窄间隙埋弧焊的应用现状[J].内燃机与配件，2018(19):119-120.WANG Chun-wei.The current application status of double-wire narrow gap submerged arc welding[J].Internal Combustion Engine and Parts,2018(19):119-120.
• [8] 陈峯，王凯，江泽新，等.船用高强钢焊接技术的研究现状与展望[J].精密成形工程，2020,12(4):65-75.CHEN Feng,WANG Kai,JIANG Ze-xin,et al.Research status and prospects of marine high strength steel welding technology[J].Journal of Netshape Forming Engineering,2020,12(4):65-75.
• [9] 滕彬，范成磊，徐锴，等.厚板窄间隙焊接技术研究现状与应用进展[J].焊接学报，2024,45(1):116-128.TENG Bin,FAN Cheng-lei,XU Kai,et al.Research status and application progress of welding technology for thick plates with narrow gaps[J].Transactions of The China Welding Institution,2024,45(1):116-128.
• [10] 崔敏民，阴旭.中厚板高强钢Q460C高效气保焊工艺实验研究[J].机械管理开发，2021,36(8):77-78.CUI Min-min,YIN Xu.Study on high efficiency gas shielded welding process of Q460C high strength steel for medium plat[J].Mechanical Management and Development,2021,36(8):77-78.
• [11] 刘东升，程丙贵，罗咪，等.TMCP特厚止裂钢板的显微组织和抗解理断裂性能[J].材料热处理学报，2020,41(11):118-128.LIU Dong-sheng,CHENG Bing-gui,LUO Mi,et al.Microstructure and anti-cleavage fracture properties of ultra-thick crack arrest steel plate prepared by TMCP[J].Transactions of Materials and Heat Treatment,2020,41(11):118-128.
• [12] 邓汉忠，孟祥峰.焊接热输入对AH32高强钢焊接接头组织及性能的影响[J].热加工工艺，2014,43(17):47-50.DENG Han-zhong,MENG Xiang-feng.Influences of welding heat input on microstructure and properties of welded joint of AH32 high strength steel[J].Hot Working Technology,2014,43(17):47-50.
• [13] 李德强，王树森.EH36大线能量用钢焊接接头组织与性能研究[J].鞍钢技术，2017(3):14-18.LI De-qiang,WANG Shu-sen.Study on microstructures and mechanical properties of welded joint for EH36 steel with high heat input[J].Angang Technology,2017(3):14-18.
• [14] Yi J,Niu B,Gao W,et al.Heterogeneous microstructure and corrosion resistance of the EH36 steel joined by vertical electro-gas welding[J].International Journal of Electrochemical Science,2020,15(3):2822-2838.
• [15] 单磊.大厚板窄间隙双丝埋弧焊工艺研究[D].镇江：江苏科技大学，2023.SHAN Lei.Research of large thick plate narrow gap twin-wire submerged arc welding process[D].Zhenjiang:Jiangsu University of Science and Technology,2023.
• [16] Tan H,Wang Z,Jiang Y,et al.Influence of welding thermal cycles on microstructure and pitting corrosion resistance of 2304 duplex stainless steels[J].Corrosion Science,2012,55:368-377.
• [17] 龚岩.Q355ND厚板窄间隙激光填丝焊工艺及接头组织性能研究[D].兰州：兰州理工大学，2022.GONG Yan.Narrow gap laser wire filling welding process for Q355ND thick plate and the microstructure and properties of joints[D].Lanzhou:Lanzhou University of Technology,2022.
• [18] Li S,Zhang W,Zhang Y,et al.Research on the welding process of Q355ND thick plate with narrow gap double wire submerged arc welding[J].Journal of Physics:Conference Series,2024,2785 012012.
• [19] 张潇.Q355ND高功率双束激光-MAG复合焊接工艺及接头组织性能研究[D].兰州：兰州理工大学，2022.ZHANG Xiao.Research on high-power dual-beam laser-MAG hybrid welding process and joint microstructure and properties of Q355ND[D].Lanzhou:Lanzhou University of Technology,2022.
• [20] 王庆国，郭凯，魏艳红.海洋用A514钢与ZGMn13Mo钢多层多道焊接接头组织与性能研究[J].鞍钢技术，2023(6):121-125.WANG Qing-guo,GUO Kai,WEI Yan-hong.Study on microstructures and properties of multi-pass and multilayer welded joints between marine steel A514 and ZGMn13Mo steel[J].Angang Technology,2023(6):121-125.
• [21] 方学伟，蒋笑，王喆，等.ER120S-G高强钢电弧增材制造的工艺优化[J].中国机械工程，2023,34(2):218-225.FANG Xue-wei,JIANG Xiao,WANG Zhe,et al.Forming process optimization of wire and arc additive manufactured high-strength steel ER120S-G[J].China Mechanical Engineering,2023,34(2):218-225.
• [22] Jia J S,Ma L Q,Hou Y,et al.Changes in microstructure and properties of weld heat-affected zone of high-strength low-alloy steel[J].Journal of Iron and Steel Research International,2024,31(8):2041-2052.
• [23] 崔冰，彭云，赵琳，等.焊接热循环对1000 MPa级焊缝金属组织性能的影响[J].材料科学与工艺，2016,24(1):44-50.CUI Bing,PENG Yun,ZHAO Lin,et al.Effects of weld thermal cycle on microstructure and properties of 1000 MPa grade weld metal[J].Materials Science and Technology,2016,24(1):44-50.
• [24] 孙艳芬，朱天一，田松亚.埋弧焊热输入对Q355B厚板焊接接头组织及性能的影响[J].精密成形工程，2025,17(2):122-129.SUN Yan-fen,ZHU Tian-yi,TIAN Song-ya.Influence of heat imput of submerged arc welding on micro-structure and properties of Q355B thick steel welded joint[J].Journal of Netshape Forming Engineering,2025,17(2):122-129.
• [25] 曾道平，安同邦，郑韶先，等.440 MPa级高强钢焊缝金属的断裂韧性[J].材料研究学报，2024,38(2):151-160.ZENG Dao-ping,AN Tong-bang,ZHENG Shao-xian,et al.Fracture toughness of weld metal of 440 MPa grade high-strength steel[J].Chinese Journal of Materials Research,2024,38(2):151-160.
• [26] 陆辉，张赫，李子豪.Q500ME高强钢板埋弧焊接头的组织及力学性能[J].机械工程材料，2025,49(6):105-109.LU Hui,ZHANG He,LI Zi-hao.Microstructure and mechanical properties of Q500ME high strength steel plate submerged arc welded joint[J].Materials For Mechanical Engineering,2025,49(6):105-109.
• [27] 李浩浩，张展展，吴科君，等.WC-304硬质合金在NaCl溶液中的腐蚀行为[J].材料热处理学报，2025,46(5):26-34.LI Hao-hao,ZHANG Zhan-zhan,WU Ke-jun,et al.Corrosion behavior of WC-304 cemented carbide in NaCl solution[J].Transactions of Materials and Heat Treatment,2025,46(5):26-34.
• [28] 王力伟，杜翠薇，刘智勇，等.Fe3C和珠光体对低碳铁素体钢腐蚀电化学行为的影响[J].金属学报，2011,47(10):1227-1232.WANG Li-wei,DU Cui-wei,LIU Zhi-yong,et al.Influences of Fe3C and pearlite the electrochemical corrosion behaviors of low carbon ferrite steel[J].Acta Metallurgica Sinica,2011,47(10):1227-1232.

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