A comparative study of laser beam welding and laser-MIG hybrid welding of Ti-Al-Zr-Fe titanium alloy

被引：63
作者：
Li, Ruifeng [1 ,2 ]
Li, Zhuguo [1 ]
Zhu, Yanyan [1 ]
Rong, Lei [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Shanghai Key Lab Mat Laser Proc & Modificat, Shanghai 200240, Peoples R China
[2] Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Jiangsu, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2011年 / 528卷 / 03期
关键词：
Ti-Al-Zr-Fe titanium alloy; Laser beam welding; Laser-MIG hybrid welding; Joint properties; MICROSTRUCTURE;
D O I：
10.1016/j.msea.2010.09.084
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Ti-Al-Zr-Fe titanium alloy sheets with thickness of 4 mm were welded using laser beam welding (LBW) and laser-MIG hybrid welding (LAMIG) methods. To investigate the influence of the methods difference on the joint properties, optical microscope observation, microhardness measurement and mechanical tests were conducted. Experimental results show that the sheets can be welded at a high speed of 1.8 m/min and power of 8 kW, with no defects such as, surface oxidation, porosity, cracks and lack of penetration in the welding seam. In addition, all tensile test specimens fractured at the parent metal. Compared with the LBW, the LAMIG welding method can produce joints with higher ductility, due to the improvement of seam formation and lower microhardness by employing a low strength TA-10 welding wire. It can be concluded that LAMIG is much more feasible for welding the Ti-Al-Zr-Fe titanium alloy sheets. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：1138 / 1142
页数：5
相关论文
共 18 条
[1]   Laser welding of Ti6Al4V titanium alloys [J].
Akman, E. ;
Demir, A. ;
Canel, T. ;
Sinmazcelik, T. .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2009, 209 (08) :3705-3713
[2]   Effect of microstructure on impact toughness of pulsed current GTA welded α-β titanium alloy [J].
Balasubramanian, M. ;
Jayabalan, V. ;
Balasubramanian, V. .
MATERIALS LETTERS, 2008, 62 (6-7) :1102-1106
[3]  
Cabibbo M., 2005, Welding International, V19, P125, DOI 10.1533/wint.2005.3379
[4]   Research and progress in laser welding of wrought aluminum alloys. II. Metallurgical microstructures, defects, and mechanical properties [J].
Cao, X ;
Wallace, W ;
Immarigeon, JP ;
Poon, C .
MATERIALS AND MANUFACTURING PROCESSES, 2003, 18 (01) :23-49
[5]  
Denney PE, 2005, INT OFFSHORE POLAR E, P106
[6]  
Fabbro R, 2008, AIP CONF PROC, V1047, P18, DOI 10.1063/1.2999933
[7]   Characterization of titanium alloy Ti-6Al-4V for chemical, marine and industrial applications [J].
Gurrappa, I .
MATERIALS CHARACTERIZATION, 2003, 51 (2-3) :131-139
[8]   Fiber laser-GMA hybrid welding of commercially pure titanium [J].
Li, Cui ;
Muneharua, Kutusna ;
Takao, Simizu ;
Kouji, Horio .
MATERIALS & DESIGN, 2009, 30 (01) :109-114
[9]  
Liu Y.Q., 2002, Acta Metall. Sin, V38, P264
[10]  
Mazumder J., 1982, METALLURGICAL T A, V13A, P1982
12