Effects of Homogenization Treatment on Microstructure and Properties of Mg-Zn-Nd-Cd-Zr Alloy

Abstract:

Mcrostructure and properties of Mg-Zn-Nd-Cd-Zr alloy have been investigated on different solution treatments and artificial aging conditions by optical microscope, SEM (scanning electron microscope) and TEM(transmission electron microscope). The results indicate that the grain boundarys become thinner and the second phases distributed on the grain boundarys become finer by double-stage homogenization at 400°C for 2h plus 460°C for 12h than that of homogenization at 420°C for 24h. Double-stage homogenization brings a greater peak-ageing hardness and longer time to reach peak hardness 20h about., and the ultimate tensile strength is 345MPa at 140°C for 34h, higher 15% than that of as-extruded

• Periodical: Advanced Materials Research (Volumes 399-401)
• Pages: 76-79
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.399-401.76
• Online since: November 2011
• Authors: Xian Lan Liu, Chu Ming Liu, Wen Yu Zhang, Hui Zhong Li, Su Min Zeng
• Keywords: Double-Stage Homogenization, Mechanical Property, Mg-Zn-Zr-Nd-Cd Magnesium Alloy

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