Microstructure Evolution of AZ91D Magnesium Alloy Semi-solid Billets Prepared by a New SIMA Method

Ju Fu Jiang; Shou Jing Luo

doi:10.4028/www.scientific.net/SSP.116-117.132

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HomeSolid State PhenomenaSolid State Phenomena Vols. 116-117Microstructure Evolution of AZ91D Magnesium Alloy...

Microstructure Evolution of AZ91D Magnesium Alloy Semi-solid Billets Prepared by a New SIMA Method

Abstract:

By using equal channel angular extrusion (ECAE) as strain induced step in strain induced melt activated (SIMA) and completing melt activated step by using semi-solid isothermal treatment, a new SIMA method is introduced firstly. The results show that semi-solid billet with highly spheroidal and homogeneous grains with the average grain size of 20μm can be prepared by new SIMA method. High mechanical properties, such as ultimate tensile strength of 321.8MPa and elongation of 15.2% are obtained in magazine plate components thixoforged using semi-solid billet prepared by new SIMA.

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Periodical:

Solid State Phenomena (Volumes 116-117)

Pages:

132-135

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.116-117.132

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Online since:

October 2006

Authors:

Ju Fu Jiang, Shou Jing Luo

Keywords:

Equal Channel Angular Extrusion (ECAE), Mechanical Behavior, Microstructure, New SIMA Method, Semi-Solid Processing

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