Investigation on TIG welding of SiCp-reinforced aluminum-matrix composite using mixed shielding gas and Al-Si filler

被引：54

作者：

Wang Xi-he ^{[1
]}

Niu Ji-tai ^{[1
]}

Guan Shao-kang ^{[1
]}

Wang Le-jun ^{[1
]}

Cheng Dong-feng ^{[1
]}

机构：

[1] Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450002, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2009年 / 499卷 / 1-2期

关键词：

He-Ar mixed gas; SiCp reinforcement; Al matrix composite; TIG welding; MICROSTRUCTURE;

D O I：

10.1016/j.msea.2008.07.037

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Using He-Ar mixed gas as shielding gas, the tungsten inert gas (TIG) welding of SiCp/6061 Al composites was investigated without and with Al-Si filler. Welded joint with filler were submitted to tensile tests. The microstructure and fracture morphology of the joint were examined. The results show that adding 50 vol.% helium in shielding gas improves the arc stability, and seams with high-quality appearance are obtained when the AI-Si filler is added. In addition, the interface reaction between SiC and matrix is greatly suppressed when using AI-Si filler. The microstructure of the welded joint displays non-uniformity with many SiC particles distributing in the weld center. The average tensile strength of weld joints with Al-Si filler is 70% above that of the matrix composites under annealed condition. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：106 / 110

页数：5

共 13 条

[1] Microstructure, tensile and fatigue properties of AA6061/20 vao.%Al2O3p friction stir welded joints
Ceschini, L.
Boromei, I.
Minak, G.
Morri, A.
Tarterini, F.
[J]. COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2007, 38 (04) : 1200 - 1210
[2] Chen MA, 2002, T NONFERR METAL SOC, V12, P805
[3] Chen YL, 2000, P SPIE2 INT SOC OPT, P143
[4] Joining of aluminium based metal matrix composites
Ellis, MBD
[J]. INTERNATIONAL MATERIALS REVIEWS, 1996, 41 (02) : 41 - 58
[5] Ernst Mikols T, 2006, United State Patent, Patent No. [US6991748B2, 6991748]
[6] [冀国娟 Ji Guojuan], 2003, [有色金属, Nonferrous Metals], V55, P21
[7] A PROCESS MODEL FOR THE FRICTION WELDING OF AL-MG-SI ALLOYS AND AL-SIC METAL-MATRIX COMPOSITES .1. HAZ TEMPERATURE AND STRAIN-RATE DISTRIBUTION
MIDLING, OT
GRONG, O
[J]. ACTA METALLURGICA ET MATERIALIA, 1994, 42 (05): : 1595 - 1609
[8] Niu JT, 2003, T NONFERR METAL SOC, V13, P289
[9] Effect of the processing methods on the formation of Al4C3 in SiCp/2024 Al composites
Shin, DS
Lee, JC
Yoon, EP
Lee, HI
[J]. MATERIALS RESEARCH BULLETIN, 1997, 32 (09) : 1155 - 1163
[10] P/M aluminum matrix composites: an overview
Torralba, JM
da Costa, CE
Velasco, F
[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2003, 133 (1-2) : 203 - 206

← 1 2 →