镍对铜/不锈钢GTAW接头导电性及腐蚀性能的影响
Effect of nickel on conductivity and corrosion of copper/stainless steel GTAW joints
-
摘要: 针对新型铜/不锈钢单缝直焊型电解铜永久阴极板焊接接头的特殊要求,采用S201,S231和CuNi-7三种不同Ni含量的焊丝对T2紫铜与316L不锈钢进行GTAW焊,并对接头微观组织、成分、电导率和耐腐蚀性进行了分析.结果表明,三种不同Ni含量的焊丝所得焊缝界面清晰、无明显的宏观焊缝缺陷,但Ni含量的增加会对焊缝表面成形有一定影响;Ni含量低时会使钢侧焊缝中产生少量微裂纹,而随着Ni含量的增加焊缝中条状和块状Ni-Cr-Fe相随之增加;随着焊缝中Ni含量的增加,铜/不锈钢接头的电导率有所下降,这与焊缝中存在的Ni-Cr-Fe相数量成反比;铜/钢接头中Ni含量的增加可较为明显地提高铜/钢接头在酸性条件下的耐腐蚀性能.Abstract: According to the requirements of the new type copper/stainless steel electrolytic copper permanent cathode plate welding joint, T2 copper and 316L stainless steel were jointed with GTAW welding method. Three different Ni content welding wires S201, S231 and CuNi-7 were applied as filler materials. The microstructure, composition, electrical conductivity and corrosion resistance of joints were studied by optical microscope, scanning electron microscope, energy spectrometer, metal conductivity meter and electrochemical workstation. The results showed that no obvious defects are occurred in the interface of joint with three different wires. When the content of Ni is low, a small amount of microcracks generate in the steel side weld. The strip, block-like Ni-Cr-Fe phases increase with the increasing of Ni content. There exists an inverse relationship between the conductivity of joint and the amount of Ni-Cr-Fe phase. The corrosion resistance of joint under acidic condition can be greatly improved by the increasing content of Ni in the joint.
-
-
[1] 王卫东, 秦钢林, 邢淑清, 等. 316L不锈钢与紫铜磁脉冲焊接组织性能分析[J]. 焊接学报, 2017, 38(10):85-88
Wang Weidong, Qin Ganglin, Xing Shuqing, et al. Microstructure and properties analysis of 316L stainless steel and copper magnetic pulse welding[J]. Journal of welding, 2017, 38(10):85-88[2] 周玲丽. 电解铜节能新工艺的研究[D]. 上海:华东理工大学, 2013. [3] 薛方勤. 铜电解精炼不锈钢阴极材料的研究与应用[D]. 昆明:昆明理工大学, 2003. [4] 邢 丽, 李 磊, 柯黎明, 等. 低碳钢与紫铜搅拌摩擦焊接头显微组织分析[J]. 焊接学报, 2007, 28(2):17-20
Xing Li, Li Lei, Ke Liming, et al. Microstructure analysis of friction stir welded joint of low carbon steel and red copper[J]. Transctions of the China Welding Instition, 2007, 28(2):17-20[5] 李 闯, 王学敏, 尚成嘉, 等. 组织对含铜钢中析出行为的影响[J]. 材料科学与工艺, 2011, 19(4):6-10
Li Chuang, Wang Xuemin, Shang Chengjia, et al. Effect of microstructure on precipitation behavior of copper bearing steel[J]. Materials Science and Technology, 2011, 19(4):6-10[6] Wang H Z, Wang K H, Zheng R K, et al. Microscopic bonding mechanism of welding interface with molten Cu-4Zn deposited on solid-state steel[J]. Materials Characterization, 2007, 59(5):542-546. [7] 姜晓飞, 何 鹏, 冯吉才, 等. CMT法30CrMnSi钢板表面熔敷CuSi3接头组织结构特征[J]. 焊接学报, 2007, 28(2):47-50, 115
Jiang Xiaofei, He Peng, Feng Jicai, et al. Microstructure characteristics of CuSi3 joint deposited on 30CrMnSi steel plate by CMT method[J]. Transctions of the China Welding Instition, 2007, 28(2):47-50, 115[8] 韩建超. TiB_2及Ni对Ti-48Al-2Cr-2Nb合金凝固组织与性能的影响[D]. 哈尔滨:哈尔滨工业大学, 2016. [9] 史春元, 于启湛. 异种金属的焊接[M]. 北京:机械工业出版社, 2012. [10] Wang Juan, Wang Jiteng, Li Yajiang, et al. Microstructure and fracture morphology of Mo-Cu/Cr18-Ni8 brazed joint in vacuum[J]. China Welding, 2017, 26(3):51-56. [11] 徐铮铮. 热处理及冷变形对高强高导铜合金Cu-Zn-Cr性能的影响[D]. 合肥:合肥工业大学, 2007. [12] 邓至谦, 周善初. 金属材料热处理[M]. 长沙:中南工业大学出版社, 1989. [13] 李亚江. 焊接冶金学材料焊接性[M]. 2版. 北京:机械工业出版社, 2016. [14] Qiu Chengjun. Physical properties of materials[M]. Harbin:Harbin Institute of Technology Press, 2003. -
期刊类型引用(9)
1. 郭鹰,杨尚玉,周聪,朱雷. 氢对TIP-TIG焊接LNG储罐用9Ni钢接头低温韧性的影响. 电焊机. 2025(04): 113-121 . 百度学术
2. 杨朝刚,杨凯,陈家兑,黄海松. 不同钨极锥角下微TIG点焊电弧行为分析. 焊接. 2024(01): 1-9 . 百度学术
3. 梁明明,刘晓文,侯昊,陈佳铭,牛连山,姜艳朋. 焊枪喷嘴结构对保护气体流场的影响. 油气储运. 2024(04): 449-456 . 百度学术
4. 杨宽,高辉,周灿丰. 基于Fluent的窄间隙TIG焊枪结构优化设计. 焊接. 2022(08): 39-43 . 百度学术
5. 王新鑫,迟露鑫,许惠斌,樊丁. 双TIG电弧中氧传质行为的数值分析. 机械工程学报. 2021(04): 53-62 . 百度学术
6. 赵金涛,岳建锋,谢昶,刘文吉,刘海华. Q235与304L异种钢角焊缝GTAW电弧能量分配规律研究. 材料科学与工艺. 2021(06): 27-34 . 百度学术
7. 郭朝博,崔露露,陶凯,王会敏. 基基于多多物理场场耦合的的TIG焊焊电弧数数值模模拟研究究. 河南工学院学报. 2020(01): 60-64 . 百度学术
8. 范成磊,陈超,林三宝,杨春利,狄忠举. TIG焊接参数对全息干涉条纹的影响. 焊接学报. 2020(02): 1-5+97 . 本站查看
9. 黑增杰,万阳,叶正山. 混合气体保护脉冲TIG工艺在UHVDC阀冷管道预制的应用. 机械制造文摘(焊接分册). 2020(03): 36-40 . 百度学术
其他类型引用(4)
计量
- 文章访问数: 337
- HTML全文浏览量: 7
- PDF下载量: 45
- 被引次数: 13