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.

EFFECTS OF La, MISCH METAL ADDITIONS ON ROLLING TEXTURE IN HIGH Mg CONTENT Al-Mg ALLOYS

2006 ◽  
Vol 20 (25n27) ◽  
pp. 4040-4045
Author(s):  
SU-DONG PARK ◽  
HEE-WOONG LEE ◽  
BONG-SEO KIM ◽  
NO-JIN PARK
Keyword(s):  
Rolling Texture ◽  
Mechanical Twinning ◽  
Mg Alloys ◽  
Mg Alloy ◽  
Misch Metal ◽  
Goss Orientation ◽  
Metal Addition ◽  
Mg Content ◽  
Al Mg Alloys

In the present works, the change of a rolling texture by La or Mm (Misch metal) addition in high Mg content (>5wt%) Al - Mg alloy was investigated. By Mm addition, B (Brass) orientation {011} 〈112〉 was typically developed with Mg contents and it was accelerated by La , Mm additions. TC (twin copper) orientation {255} 〈511〉 and G (Goss) orientation {110} 〈001〉 orientations closely related mechanical twinning were decreased in intensity and development of coarsen share bend was suppressed by Mm addition in Al -10wt% Mg alloy. And it caused improvement of formability by Mm addition in high Mg content Al - Mg alloy.

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

Effects of high Mg content and processing parameters on Portevin-Le Chatelier and negative strain rate sensitivity effects in Al–Mg alloys

2020 ◽  
Vol 779 ◽  
pp. 139151 ◽  
Author(s):  
Chang-Hee Cho ◽  
Hyeon-Woo Son ◽  
Jae-Cheol Lee ◽  
Kwang-Tae Son ◽  
Ji-Woon Lee ◽  
...  
Keyword(s):  
Strain Rate ◽  
Strain Rate Sensitivity ◽  
Rate Sensitivity ◽  
Processing Parameters ◽  
Mg Alloys ◽  
Negative Strain Rate Sensitivity ◽  
Mg Content ◽  
Al Mg Alloys

Influence of Mg Content, Grain Size and Strain Rate on Mechanical Properties and DSA Behavior of Al-Mg Alloys Processed by ECAP and Annealing

2014 ◽  
Vol 794-796 ◽  
pp. 870-875 ◽  
Author(s):  
Min Zha ◽  
Yan Jun Li ◽  
Ragnvald H. Mathiesen ◽  
Christine Baumgart ◽  
Hans J. Roven
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Strain Rate ◽  
Room Temperature ◽  
Uniform Elongation ◽  
Mg Alloys ◽  
Lower Strain Rate ◽  
Lower Strain ◽  
Mg Content ◽  
Al Mg Alloys

Ultrafine-grained (UFG) binary Al-xMg (x=1, 5 and 7 wt %) alloys were processed by equal channel angular pressing (ECAP) at room temperature via route Bccombined with inter-pass annealing. The effects of Mg content, grain size and strain rate on mechanical properties and dynamic strain aging (DSA) behaviour of the Al-Mg alloys upon tensile testing at room temperature were studied. An increase in Mg content from 5 to 7 wt % leads to a pronounced increase in strength and uniform elongation in both the as-homogenized and as-ECAP Al-Mg alloys. Thereby, the Al-7Mg alloy, either prior to or after ECAP processing, possess significantly higher strength and comparable or even higher uniform elongation than the more dilute Al-Mg alloys. However, the as-ECAP Al-Mg alloys exhibit significantly higher strength but little work hardening and hence rather limited uniform elongation. In general, decreasing grain size leads to significant increase in strength while dramatic decrease in ductility. Moreover, DSA serration amplitudes increase with reducing grain size in the micrometer range. However, the UFG Al-Mg alloys exhibit much less DSA effect than the micrometer scaled grain size counterparts, i.e. probably due to the high dislocation densities and special grain boundary features in the UFG materials. Also, the Al-Mg alloys, especially those with a UFG structure, exhibit higher strength and ductility at lower strain rate than at higher strain rate, due mainly to enhanced DSA effect and hence work hardening at a lower strain rate.

Effects of Mg content on microstructure and electrochemical properties of Zn–Al–Mg alloys

2015 ◽  
Vol 645 ◽  
pp. 131-136 ◽  
Author(s):  
Caizhen Yao ◽  
See Leng Tay ◽  
Tianping Zhu ◽  
Hongfei Shang ◽  
Wei Gao
Keyword(s):  
Electrochemical Properties ◽  
Mg Alloys ◽  
Mg Content ◽  
Al Mg Alloys

scholarly journals Effect of Mg Content on Vibration Fracture Resistance of Friction Stirred Al–Mg Alloys

2005 ◽  
Vol 46 (10) ◽  
pp. 2268-2275 ◽  
Author(s):  
Kuo-Tsung Huang ◽  
Truan-Sheng Lui ◽  
Li-Hui Chen
Keyword(s):  
Fracture Resistance ◽  
Mg Alloys ◽  
Mg Content ◽  
Al Mg Alloys

Effect of Mg content on the minimum grain size of Al–Mg alloys obtained by friction stir processing

2011 ◽  
Vol 64 (4) ◽  
pp. 355-358 ◽  
Author(s):  
Taiki Morishige ◽  
Tomotake Hirata ◽  
Tokuteru Uesugi ◽  
Yorinobu Takigawa ◽  
Masato Tsujikawa ◽  
...  
Keyword(s):  
Grain Size ◽  
Friction Stir Processing ◽  
Mg Alloys ◽  
Friction Stir ◽  
Mg Content ◽  
Al Mg Alloys

Effect of Mg Content on the Damping Behavior of Al–Mg Alloys

2020 ◽  
Author(s):  
Zhenzhen Li ◽  
Hongge Yan ◽  
Jihua Chen ◽  
Weijun Xia ◽  
Bin Su ◽  
...  
Keyword(s):  
Mg Alloys ◽  
Damping Behavior ◽  
Mg Content ◽  
Al Mg Alloys

Effects of Mg content on keyhole behaviour during deep penetration laser welding of Al-Mg alloys

2020 ◽  
Vol 125 ◽  
pp. 106056 ◽  
Author(s):  
Ye Huang ◽  
Chen Shen ◽  
Xiangru Ji ◽  
Fang Li ◽  
Yuelong Zhang ◽  
...  
Keyword(s):  
Laser Welding ◽  
Mg Alloys ◽  
Deep Penetration ◽  
Mg Content ◽  
Al Mg Alloys

Enhancing Thermal Stability of Binary Al-Mg Alloys by Tailoring Grain Orientations Using a High Solute Mg Content

2019 ◽  
Vol 50 (11) ◽  
pp. 5264-5270
Author(s):  
Min Zha ◽  
Xiang-Tao Meng ◽  
Zhi-Yuan Yu ◽  
Hong-Min Zhang ◽  
Hao-Liang Yin ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Mg Alloys ◽  
Grain Orientations ◽  
Mg Content ◽  
Thermal Stability Of ◽  
Al Mg Alloys
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