A comparative study of pulsed Nd:YAG laser welding and TIG welding of thin Ti6Al4V titanium alloy plate

被引：209

作者：

Gao, Xiao-Long ^{[1
]}

Zhang, Lin-Jie ^{[1
]}

Liu, Jing ^{[1
]}

Zhang, Jian-Xun ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2013年 / 559卷

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

Ti6Al4V titanium alloy; Pulsed Nd:YAG laser welding; TIG welding; Joint properties; MICROSTRUCTURAL CHARACTERISTICS; MECHANICAL-PROPERTIES; IMPACT TOUGHNESS; BUTT-JOINTS; BEAM; TI-6AL-4V; METAL;

D O I：

10.1016/j.msea.2012.06.016

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper reports on a study aiming at comparing properties of the Ti6Al4V titanium alloy joints between pulsed Nd:YAG laser welding and traditional fusion welding. To achieve the research purpose, Ti6Al4V titanium alloy plates with a thickness of 0.8 mm were welded using pulsed Nd:YAG laser beam welding (LBW) and gas tungsten arc welding (TIG), respectively. Residual distortions, weld geometry, microstructure and mechanical properties of the joints produced with LBW and TIG welding were compared. During the tensile test, with the aid of a high speed infrared camera, evolution of the plastic strain within tensile specimens corresponding to LBW and TIG welding were recorded and analyzed. Compared with the TIC, the welded joint by LBW has the characters of small overall residual distortion, fine microstructure, narrow heat-affected zone (HAZ), high Vickers hardness. LBW welding method can produce joints with higher strength and ductility. It can be concluded that Pulsed Nd:YAG laser welding is much more suitable for welding the thin Ti6Al4V titanium alloy plate than TIG welding. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：14 / 21

页数：8

共 27 条

[1] Phase transformations during cooling in α+β titanium alloys [J].

Ahmed, T ;

Rack, HJ .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 243 (1-2) :206-211

[2]

Baeslack W.A., 1998, WELDING HDB, V8th ed., P488

[3] 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

[4] Electron beam welded high thickness Ti6A14V plates using filler metal of similar and different composition to the base plate [J].

Barreda, JL ;

Santamaría, F ;

Azpiroz, X ;

Irisarri, AM ;

Varona, JM .

VACUUM, 2001, 62 (2-3) :143-150

[5] Modulated Nd : YAG laser welding of Ti-6Al-4V [J].

Blackburn, J. E. ;

Allen, C. M. ;

Hilton, P. A. ;

Li, L. ;

Hoque, M. I. ;

Khan, A. H. .

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2010, 15 (05) :433-439

[6] Effect of welding speed on butt joint quality of Ti-6Al-4V alloy welded using a high-power Nd:YAG laser [J].

Cao, X. ;

Jahazi, M. .

OPTICS AND LASERS IN ENGINEERING, 2009, 47 (11) :1231-1241

[7]

Denney P.E., P 15 INT OFFSH POL E, P106

[8] Phase transformation dynamics during welding of Ti-6Al-4V [J].

Elmer, JW ;

Palmer, TA ;

Babu, SS ;

Zhang, W ;

DebRoy, T .

JOURNAL OF APPLIED PHYSICS, 2004, 95 (12) :8327-8339

[9]

Fan Y., 2005, J APPL PHYS, V98

[10] Weld metal microstructural characteristics in pulsed Nd: YAG laser welding [J].

Ghaini, F. Malek ;

Hamedi, M. J. ;

Torkamany, M. J. ;

Sabbaghzadeh, J. .

SCRIPTA MATERIALIA, 2007, 56 (11) :955-958

← 1 2 3 →