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Investigations on laser welding of magnesium alloys

  • Jun Dai , Jian Huang , Zhuguo Li , Jie Dong and Yixiong Wu
Published/Copyright: April 13, 2012
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 103 Issue 10

Abstract

The welding processes of three different magnesium alloys ZK60, AZ31, and Mg-rare earth alloy NZ30K were studied using a high-power CO2 laser. The microstructure and tensile strength of welded joints were tested and analyzed. With increasing welding speed the tensile strength and total elongation of welded joints of ZK60 alloy are improved. The ultimate tensile strength of the welded joint of ZK60 is 211.18 MPa, 90% of the base metal. The tensile strengths of welded joints of AZ31 and NZ30K are better than those of the base metal. The expansion of the plasma of laser-welded ZK60 is the strongest with the highest temperature.

Keywords: Laser welding; Mg-rare earth alloy; Spectral analysis; Plasma; NZ30K
1 Correspondence address: Jian Huang, Shanghai Key Laboratory of Materials Laser Processing and Modification, Shanghai Jiao Tong University, 800 Dong Chuan RoadShanghai 200240China, Tel.: +86-21-34 202 837, Fax: +86-21-34 203 024, E-mail:

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Received: 2011-5-29
Accepted: 2012-2-12
Published Online: 2012-04-13
Published in Print: 2012-10-01

© 2012, Carl Hanser Verlag, Munich

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https://doi.org/10.3139/146.110764
Keywords for this article
Laser welding; Mg-rare earth alloy; Spectral analysis; Plasma; NZ30K

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Phase equilibria in the Gd–Ni binary and Mg–Ni–Gd ternary systems
  5. Thermodynamics of dilute binary solid solutions using the cluster variation method
  6. Thermal stability of coherent Pd/TiAl interfaces studied from first-principles calculations and experiments
  7. Electropulsing-induced phase transformations and their effects on the single point diamond turning of a tempered alloy AZ91
  8. Study of the mechanism of ductile-regime grinding of SiCp/Al composites using finite element simulation
  9. Investigations on laser welding of magnesium alloys
  10. Investigation of the surface of a laser-treated cast iron cylinder bore
  11. Solidification behaviour of an AA5754 Al alloy ingot cast with high impurity content
  12. Study of the structural evolution of crystalline zinc oxide films prepared by PLD
  13. Effects of sintering temperature on pore characterization and strength of porous cordierite–mullite ceramics by a pore-forming in-situ technique
  14. Sol–gel synthesis of Eu3+, Tb3+ co-doped Y2O3 scintillating nanopowders
  15. Morphological study of SiC coating developed on 2D carbon composites using MTS precursor in a hot-wall vertical reactor
  16. Self-assembling behavior and corrosion inhibition properties of TDPA films on differently structured surfaces of 2024 and 1060 aluminum alloys
  17. Photocatalytic activity of MnWO4 powder in highly effective hydrogen generation from H2O and H2O2
  18. Rheology and microstructure of polymer-modified asphalt nanocomposites
  19. Short Communications
  20. Microstructure and phase composition in a die cast Mg–Nd alloy containing Zn and Zr
  21. DGM News
  22. DGM News
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