P92钢的CMT+P焊接接头组织性能
Microstructures and properties of P92 welding joint obtained by CMT+P welding
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摘要: 介绍了冷金属过渡+脉冲(CMT+P)焊接的焊接方法和特点. 采用CMT+P焊接工艺对P92钢板进行了对接焊接试验，并对比分析了P92钢的CMT+P焊接工艺与TIG打底+SMAW填充焊焊接工艺的焊接接头组织和性能. 结果表明，两种工艺的焊接接头经热处理后均为回火马氏体组织，且CMT+P的马氏体板条间距较小，热影响区为等轴晶且较窄，高温蠕变性能相对较好；CMT+P焊接接头抗拉强度优于母材，且冲击韧性与TIG打底+SMAW填充焊焊接头冲击韧性水平相当. 进而证实了CMT+P可作为P92钢焊接工艺的一种新选择.Abstract: Welding method and characteristics of cold metal transfer + pulse welding (CMT+P) were introduced. P92 steel was butt joined by the CMT+P process, while microstructures and mechanical properties of welding joints were analyzed and compared to those of TIG+SMAW joints. The results showed that the microstructures in both of the welding joints were tempered martensite after welding and heat treatment. The martensite lath of the CMT+P joint was smaller. Heat affected zone of the CMT+P joint with the equiaxed grains was relatively narrower. High temperature creep performances of the CMT+P joints were relatively better. The tensile strength of the CMT+P joint was superior to that of parent metal, while the impact toughness of the CMT+P joint was corresponded with that of the TIG+SMAW joint. Therefore, the CMT+P welding process can be thought as a new choice to weld P92 steel.
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[1] Wang S S, Peng D L, Chang L, et al. Enhanced mechanical properties induced by refined heat treatment for 9Cr-0.5Mo-1.8W martensitic heat resistant steel[J]. Materials and Design, 2013, 50(17): 174 ? 180. [2] 王淦刚, 赵 军, 赵建仓, 等. P92新型耐热钢焊接接头的力学性能研究及其工程应用[J]. 电力设备, 2007, 8(5): 1 ? 5
Wang Gangang, Zhao Jun, Zhao Jiancang, et al. Mechanical performance study and engineering application of weld joint of P92 new type heat-resisting steel[J]. Electrical Equipment, 2007, 8(5): 1 ? 5[3] Krishnan S, Kulkrni D V, De A. Pulsed current gas metal arc welding of P91 steel using metal cored wires[J]. Journal of Materials Processing Technology, 2016, 229: 826 ? 833. [4] Pang Jie, Hu Shengsun, Shen Junqi, et al. Arc characteristics and metal transfer behavior of CMT+P welding process[J]. Journal of Materials Processing Technology, 2016, 238: 212 ? 217. [5] Kamal Pal, Surjya K. Pal. Effect of pulse parameters on weld quality in pulsed gas metal arc welding[J]. Journal of Materials Engineering and Performance, 2011, 20(6): 918 ? 931. [6] 林 华. 大型火力发电厂超超临界机组主蒸汽管SA335-P92钢焊接工艺研究[J]. 装备制造技术, 2008, 10: 69 ? 72
Lin Hua. Research on welding processes of SA335-P92 steel main steam pipes for ultra supercritical generating units in large thermal power plants[J]. Equipment Manufacturing Technique, 2008, 10: 69 ? 72[7] 邵小剑. 超超临界机组主蒸汽P92钢的焊接[J]. 电焊机, 2008, 38(1): 58 ? 62
Shao Xiaojian. The welding of P92 steel main steam pipes for ultra supercritical unit[J]. Electric Welding Machine, 2008, 38(1): 58 ? 62[8] Albert S K, Tabuchi M, Hongo H, et al. Effect of welding process and groove angle on type IV cracking behaviour of weld joints of a ferriticsteel[J]. Science and Technology of Welding and Joining, 2013, 10(2): 49 ? 157. [9] 赵勇桃. 超超临界锅炉用P92钢的组织性能及应用[M]. 北京: 冶金工业出版社, 2015. [10] 刘 睿. 超超临界机组用P92钢焊缝金属组织与性能[D]. 山东: 山东大学, 2016. [11] 李 俊, 张忠文. P92钢焊接接头的组织和性能研究[J]. 山东电力技术, 2009(3): 28 ? 30
Li Jun, Zhang Zhongwen. Study on microstructure and property of P92 welding joint[J]. Shandong Electric Power, 2009(3): 28 ? 30 -
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