Effect of Welding Parameters on Microstructure and Tensile Properties of Friction Stir Welded 6061 AL Joints

被引：13
作者：
Feng, A. H. [1 ]
Chen, D. L. [1 ]
Ma, Z. Y. [2 ]
机构：
[1] Ryerson Univ, Dept Mech & Ind Engn, 350 Victoria St, Toronto, ON M5B 2K3, Canada
[2] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
来源：
LIGHT METALS TECHNOLOGY 2009 | 2009年 / 618-619卷
基金：
加拿大自然科学与工程研究理事会;
关键词：
friction stir welding; aluminium alloy; ALUMINUM-ALLOY; PRECIPITATION SEQUENCE; MECHANICAL-PROPERTIES; EVOLUTION; BEHAVIOR;
D O I：
10.4028/www.scientific.net/MSF.618-619.41
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The present investigation is aimed at evaluating the influence of tool rotation rate and welding speed on the microstructure, tensile properties, and fracture mode of 6061 Al-T651 alloy after friction stir welding (FSW). TEM results revealed that in the nugget zone (NZ), FSW resulted in the dissolution of fine needle-shaped precipitates that previously existed in the base metal. At a given rotation rate of 1400rpm, the yield strength (YS) and ultimate tensile strength (UTS) of the welded joints increased with increasing welding speed from 200 to 600mm/min. However, the UTS of the joints was nearly independent of the rotation rate. Furthermore, the relationship between the hardness distribution and fracture location has also been identified.
引用
收藏
页码：41 / +
页数：2
相关论文
共 15 条
[1]   Finite element modeling of friction stir welding - thermal and thermomechanical analysis [J].
Chen, CM ;
Kovacevic, R .
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE, 2003, 43 (13) :1319-1326
[2]   A CALORIMETRIC STUDY OF PRECIPITATION IN COMMERCIAL ALUMINUM ALLOY-6061 [J].
DUTTA, I ;
ALLEN, SM .
JOURNAL OF MATERIALS SCIENCE LETTERS, 1991, 10 (06) :323-326
[3]   The precipitation sequence in Al-Mg-Si alloys [J].
Edwards, GA ;
Stiller, K ;
Dunlop, GL ;
Couper, MJ .
ACTA MATERIALIA, 1998, 46 (11) :3893-3904
[4]   Microstructural evolution in the heat-affected zone of a friction stir weld [J].
Fonda, RW ;
Bingert, JF .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2004, 35A (05) :1487-1499
[5]   Tensile behavior of friction-stir-welded Al 6061 T651 [J].
Lim, S ;
Kim, S ;
Lee, CG ;
Kim, S .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2004, 35A (09) :2829-2835
[6]   Influence of tool dimension and welding parameters on microstructure and mechanical properties of friction-stir-welded 6061-T651 aluminum alloy [J].
Liu, F. C. ;
Ma, Z. Y. .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2008, 39A (10) :2378-2388
[7]   Friction stir welding and processing [J].
Mishra, RS ;
Ma, ZY .
MATERIALS SCIENCE & ENGINEERING R-REPORTS, 2005, 50 (1-2) :1-78
[8]   A TEM study of precipitation and related microstructures in friction-stir-welded 6061 aluminium [J].
Murr, LE ;
Liu, G ;
McClure, JC .
JOURNAL OF MATERIALS SCIENCE, 1998, 33 (05) :1243-1251
[9]  
Ren SR, 2007, SCRIPTA MATER, V56, P69, DOI [10.1016/j.scriptamat.2006.08.054, 10.1016/j.scriptmat.2006.08.054]
[10]   Distribution of tensile property and microstructure in friction stir weld of 6063 aluminum [J].
Sato, YS ;
Kokawa, H .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2001, 32 (12) :3023-3031
12