Improvement of ultrasonic weld strength of Al–Mg alloys by alcohol adhesion – ultrasonic welding of Al–Mg alloys

2004 ◽  
Vol 18 (5) ◽  
pp. 357-363 ◽  
Author(s):  
M Hiraishi ◽  
T Watanabe
Keyword(s):  
Ultrasonic Welding ◽  
Mg Alloys ◽  
Weld Strength ◽  
Al Mg Alloys

CW CO2 Laser Welding of Al-Mg Alloys with Filler Wires

2008 ◽  
Vol 580-582 ◽  
pp. 539-542 ◽  
Author(s):  
Jong Won Yoon ◽  
E.R. Wallach
Keyword(s):  
Weld Metal ◽  
Mg Alloys ◽  
Solidification Cracking ◽  
Solidification Structure ◽  
Mg Alloy ◽  
Weld Strength ◽  
Laser Welds ◽  
Equiaxed Grains ◽  
Mg Content ◽  
Al Mg Alloys

The CW CO2 laser weldability of various Al-Mg alloys was investigated in terms of weld strength, ductility, Vickers hardness, formability and solidification cracking tendency when both autogenous and wire feed welding were made. Tensile strength of the laser welds was lower than that of the corresponding base metals, and it was linearly proportional to the Mg content of the weld metal. Formability and ductility of Al-Mg alloy laser welds were lower than those of corresponding base alloys as well. As for the weld solidification structure, as the Mg content increased in the weld metal, more equiaxed grains developed. Hence, softening of weld metal and solidification cracking were decreased in the weld metal containing higher Mg. Solidification cracking of Al-Mg alloy laser welds showed the highest susceptibility at 1.6 to 1.9wt.% Mg, and it decreased with further increase of Mg content.

scholarly journals Al-Mg alloys.

1988 ◽  
Vol 38 (8) ◽  
pp. 496-512 ◽  
Author(s):  
Hideo YOSHIDA ◽  
Toshiyasu FUKUI
Keyword(s):  
Mg Alloys ◽  
Al Mg Alloys

scholarly journals Effect of Mg on Dynamic Properties of Al-Mg Alloys

2020 ◽  
Vol 28 ◽  
pp. 2261-2266
Author(s):  
A.D. Evstifeev ◽  
G.A. Volkov
Keyword(s):  
Dynamic Properties ◽  
Mg Alloys ◽  
Al Mg Alloys

Effects of Zn content on damping behaviours of Al–Mg alloys

2021 ◽  
pp. 1-8
Author(s):  
Lu Zhao ◽  
Hongge Yan ◽  
Jihua Chen ◽  
Weijun Xia ◽  
Bin Su
Keyword(s):  
Mg Alloys ◽  
Zn Content ◽  
Al Mg Alloys

Critical concentration of Mg addition for plastic instabilities in Al–Mg alloys

2000 ◽  
Vol 15 (5) ◽  
pp. 1037-1040 ◽  
Author(s):  
N. Q. Chinh ◽  
F. Csikor ◽  
Zs. Kovács ◽  
J. Lendvai
Keyword(s):  
Room Temperature ◽  
Loading Rate ◽  
Critical Concentration ◽  
Solute Concentration ◽  
Mg Alloys ◽  
Depth Sensing ◽  
Solute Content ◽  
Mg Addition ◽  
Constant Loading Rate ◽  
Al Mg Alloys

Plastic instabilities were investigated by the depth-sensing microhardness test in binary high-purity Al–Mg alloys with different Mg contents. During the tests the applied load was increased from 0 to 2000 mN at constant loading rate. The instabilities appeared as characteristic steps in the load–depth curves during indentation. It was shown that the occurrence and development of the plastic instabilities depend strongly on the solute content. Furthermore, the plastic instabilities occurred only when the solute concentration was larger than a critical value, C0. From room-temperature tests on Al–Mg alloys, C0 was found to be 0.86 wt% Mg. The critical concentration, which is necessary to get plastic instabilities, was also interpreted theoretically.

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