Microstructure and Mechanical Properties of Cast and Semi-Solid Formed Mg-Al-Zn Alloys

Abstract:

Various Mg-Al-Zn alloys with different Al and Zn contents were fabricated by conventional casting and semi-solid forming process. And the microstructure and mechanical properties of the alloys were investigated. In Mg-4%Al-(5~7)%Zn alloys most of the grain boundary phases were found to be Mg-Al-Zn while in Mg-6%Al or Mg-8%Al based alloys the Mg- Al-Zn phase coexisted with Mg17Al12 at grain boundaries. At room temperature the semi-solid formed alloys showed significantly higher tensile properties, especially elongation, than the conventionally cast alloys.

• Periodical: Solid State Phenomena (Volumes 116-117)
• Pages: 288-291
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.116-117.288
• Online since: October 2006
• Authors: Jeong Min Kim, Bong Koo Park, Joong Hwan Jun, Ki Tae Kim, Woon Jae Jung
• Keywords: Cast, Magnesium-Aluminium-Zinc, Mechanical Property, Microstructure, Semi-Solid

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[50] 100 150 200 250 300 350 400 4%Al 6%Al 8%Al Strength (MPa).

[5] [10] [15] [20] [25] [30] Elongation (%) YS UTS Elongation.

[50] 100 150 200 250 300 350 400 4%Al 6%Al 8%Al Strength (MPa).

[5] [10] [15] [20] [25] [30] Elongation (%) YS UTS Elongation.