Effect of aging treatment on the microstructure and mechanical properties of the similar and dissimilar 6061-T6/7075-T651 RSW joints

被引：38
作者：
Hayat, Fatih [1 ]
机构：
[1] Karabuk Univ Baliklarkayasi, Dept Met Mat Engn, Fac Engn, Karabuk, Turkey
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2012年 / 556卷
关键词：
Aluminium alloys; X-ray diffraction; Similar and dissimilar joints; Aging; Fracture; WELDING PARAMETERS; ALUMINUM; ALLOY; STRENGTH;
D O I：
10.1016/j.msea.2012.07.077
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The similar and dissimilar resistance spot weldability of 6061-T6 and 7075-T651 aluminium alloys was investigated in this study. Resistance spot weldability of commercial and aged samples in different variations was examined. The microstructure, microhardness, scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD) and electron probe micro-analyses (EPMA) were conducted to study the effects aging heat treatment had on similar and dissimilar resistance spot welded (RSW) joints. In addition, tensile shear tests were performed to determine the mechanical properties and fracture behaviour of welded joints. The tests concluded that pre-weld aging heat treatment improves mechanical properties. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：834 / 843
页数：10
相关论文
共 42 条
[1]   The microstructure and mechanical strength of Al-6061-T6 GMA welds obtained with the modified indirect electric arc joint [J].
Ambriz, R. R. ;
Barrera, G. ;
Garcia, R. ;
Lopez, V. H. .
MATERIALS & DESIGN, 2010, 31 (06) :2978-2986
[2]  
American Welding Society, 2007, D81 AWS, P1
[3]  
[Anonymous], 1978, MILW6858D, P4
[4]  
[Anonymous], 1990, ASM HDB, V2
[5]   The effect of nucleus size on mechanical properties in electrical resistance spot welding of sheets used in automotive industry [J].
Aslanlar, S .
MATERIALS & DESIGN, 2006, 27 (02) :125-131
[6]   Mechanisms of joint and microstructure formation in high power ultrasonic spot welding 6111 aluminium automotive sheet [J].
Bakavos, D. ;
Prangnell, P. B. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (23) :6320-6334
[7]   Deformation behaviour of spot-welded high strength steels for automotive applications [J].
Brauser, S. ;
Pepke, L. A. ;
Weber, G. ;
Rethmeier, M. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (26) :7099-7108
[8]   Precipitate evolution in friction stir welding of 2219-T6 aluminum alloys [J].
Chen, Y. C. ;
Feng, J. C. ;
Liu, H. J. .
MATERIALS CHARACTERIZATION, 2009, 60 (06) :476-481
[9]  
Davis J R., 1990, METALS HDB, V2, P103
[10]   The effects of aging on machinability of 6061 aluminium alloy [J].
Demir, Halil ;
Guenduez, Sueleyman .
MATERIALS & DESIGN, 2009, 30 (05) :1480-1483
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