The Microstructure and Properties of Extruded Mg-Nd-Gd-Zn-Zr Alloy

Yong Dong Xu; Sheng Sun Hu; Jing Jiang Nie; Jun Wang; Rong Wang; Xiu Rong Zhu

doi:10.4028/www.scientific.net/AMR.554-556.465

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 554-556The Microstructure and Properties of Extruded...

The Microstructure and Properties of Extruded Mg-Nd-Gd-Zn-Zr Alloy

Abstract:

The extruded microstructure and properties of Mg-2.7Nd-1.2Gd-0.4Zn-0.3Zr alloy by squeeze casting were investigated. After aging process (T5), the dislocation density was enhanced and the dislocation interaction was increased; the factors of grain refinement, RE phases redistribution, the increment of dislocations and the interaction between dislocations and precipitate phases were contributed to the strength increase after hot extrusion and aging treatment, the fracture mode of the hot-extruded alloy was the fracture of the secondary phases and the trans-grain fracture.

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Periodical:

Advanced Materials Research (Volumes 554-556)

Pages:

465-471

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.554-556.465

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Online since:

July 2012

Authors:

Yong Dong Xu, Sheng Sun Hu, Jing Jiang Nie, Jun Wang, Rong Wang, Xiu Rong Zhu

Keywords:

Aging, Dislocation, Extrusion, Microstructure, Precipitate, Property Analysis

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