Natural aging of heterogeneous arc-welded AA6061-AA7075 joints with nanocomposite filler

被引：4

作者：

Murali, Narayanan ^{[1
]}

Zheng, Shiqi ^{[1
]}

Chi, Yitian ^{[2
]}

Li, Xiaochun ^{[1
,2
]}

机构：

[1] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA

[2] Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA

来源：

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING | 2023年 / 28卷 / 04期

关键词：

welding; nanocomposites; aluminium alloys; mechanical properties; microstructure; natural aging; MECHANICAL-PROPERTIES; MICROSTRUCTURE; SOLIDIFICATION; ALUMINUM; BEHAVIOR; CAST;

D O I：

10.1080/13621718.2022.2148066

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the dissimilar joining of aluminium alloys 6061 and 7075 using filler rods nano-treated with TiC nanoparticles. TiC enables the formation of a fine and equiaxial weld metal microstructure while preventing the formation of hot cracks. Dissimilar joints were also naturally aged, and their strength evolutions were tracked over 8 weeks and compared to a nano-treated, homogeneous AA7075 joint. Heterogeneous weld metals regained over 30 HV with a mix of MgZn2 and Mg2Si strengthening phases. Nano-treatment thus shows great promise, being able to facilitate the fusion welding of a traditionally difficult-to-weld system and enable a natural aging response between two artificially aged alloys.

引用

页码：249 / 258

页数：10

共 50 条

[41] Evaluation of microstructure and fatigue properties of dissimilar AA7075/AA6061 joints produced by friction stir welding
Sarsilmaz, F.
Ozdemir, N.
Kirik, I.
KOVOVE MATERIALY-METALLIC MATERIALS, 2012, 50 (04): : 259 - 268
[42] Effect of process parameters on porosities in electron beam welded AA-6061 to AA-2024 dissimilar joints
Kar, Jyotirmaya
WELDING IN THE WORLD, 2023, 67 (08) : 2007 - 2016
[43] Effect of process parameters on porosities in electron beam welded AA-6061 to AA-2024 dissimilar joints
Jyotirmaya Kar
Welding in the World, 2023, 67 : 2007 - 2016
[44] Experimental study of mechanical properties of AA6061 and AA7075 alloy joints using friction stir welding
Amuthan, Tamilselvan
Nagaprasad, Nagaraj
Krishnaraj, Ramaswamy
Narasimharaj, Venugopal
Stalin, B.
Vignesh, Venkataraman
MATERIALS TODAY-PROCEEDINGS, 2021, 47 : 4330 - 4335
[45] INFLUENCE OF POST-WELDING HEAT TREATMENT ON MECHANICAL AND MICROSTRUCTURAL BEHAVIOR OF FRICTION STIR WELDED AA7075-T651 AND AA6061 DISSIMILAR JOINTS
Yuvaraj, K. P.
Varthanan, P. Ashoka
Boopathiraja, K. P.
HIGH TEMPERATURE MATERIAL PROCESSES, 2018, 22 (01): : 17 - 34
[46] Effect of Postweld Aging Treatment on Fatigue Behavior of Pulsed Current Welded AA7075 Aluminum Alloy Joints
V. Balasubramanian
V. Ravisankar
G. Madhusudhan Reddy
Journal of Materials Engineering and Performance, 2008, 17 : 224 - 233
[47] Effect of postweld aging treatment on fatigue behavior of pulsed current welded AA7075 aluminum alloy joints
Balasubramanian, V.
Ravisankar, V.
Reddy, G. Madhusudhan
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2008, 17 (02) : 224 - 233
[48] Effect of friction stir processing on mechanical properties and heat transfer of TIG welded joint of AA6061 and AA7075
Husain Mehdi
R.S.Mishra
Defence Technology , 2021, (03) : 715 - 727
[49] Effect of friction stir processing on mechanical properties and heat transfer of TIG welded joint of AA6061 and AA7075
Mehdi, Husain
Mishra, R. S.
DEFENCE TECHNOLOGY, 2021, 17 (03) : 715 - 727
[50] Response of CMT Welded Aluminum AA5086-H111 to AA6061-T6 Plate with AA4043 Filler for Ballistic
Srikanth, T.
Surendran, S.
Balaganesan, G.
Manjunath, G. L.
10TH INTERNATIONAL CONFERENCE ON MARINE TECHNOLOGY (MARTEC 2016), 2017, 194 : 522 - 528

← 1 2 3 4 5 →