High strain rate superplasticity of a fine-grained AZ91 magnesium alloy prepared by submerged friction stir processing

2013 ◽  
Vol 568 ◽  
pp. 40-48 ◽  
Author(s):  
Fang Chai ◽  
Datong Zhang ◽  
Yuanyuan Li ◽  
Weiwen Zhang
Keyword(s):  
Magnesium Alloy ◽  
High Strain Rate ◽  
Strain Rate ◽  
Friction Stir Processing ◽  
High Strain ◽  
Az91 Magnesium Alloy ◽  
Friction Stir ◽  
Fine Grained ◽  
Az91 Magnesium

scholarly journals High-Strain-Rate Superplasticity in an AZ91 Magnesium Alloy Processed by Ingot Metallurgy Route

2002 ◽  
Vol 43 (1) ◽  
pp. 78-80 ◽  
Author(s):  
Hiroyuki Watanabe ◽  
Toshiji Mukai ◽  
Koichi Ishikawa ◽  
Kenji Higashi
Keyword(s):  
Magnesium Alloy ◽  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Ingot Metallurgy ◽  
Az91 Magnesium Alloy ◽  
Az91 Magnesium

Microstructure and Mechanical Properties of a Fine-Grained AZ91 Magnesium Alloy Prepared by Multi-Pass Friction Stir Processing

2016 ◽  
Vol 850 ◽  
pp. 778-783 ◽  
Author(s):  
Zhi Long Lu ◽  
Da Tong Zhang
Keyword(s):  
Mechanical Properties ◽  
Magnesium Alloy ◽  
Friction Stir Processing ◽  
Az91 Magnesium Alloy ◽  
Magnesium Matrix ◽  
Friction Stir ◽  
Single Pass ◽  
Fine Grained ◽  
Microstructure And Mechanical Properties ◽  
Az91 Magnesium

Friction stir processing (FSP) is a novel severe plastic deformation technique developed in recent years to produce fine-grained structural materials. Through increasing the processing pass, further grain refinement can be achieved. In this paper, the microstructure and mechanical properties of AZ91 magnesium alloy prepared by the single-pass and two-pass FSP were studied. The results showed that the coarse, network-like eutectic β-Mg17Al12 phase was broken into particles and some of them dissolved into the magnesium matrix, and the α-Mg grains were remarkably refined after FSP. The average grain sizes of the single-pass and two-pass FSP alloys were 8.3 μm and 5.8 μm respectively. The ultimate tensile strengths of the specimens were 284.5 MPa and 319.7 MPa, and elongations were 13% and 14.5%, respectively. The improved mechanical properties of the two-pass FSP specimen were mainly attributed to the finer grain size and more homogenized microstructure.

Mechanical properties of ultra-fine grained AZ91 magnesium alloy processed by friction stir processing

2015 ◽  
Vol 628 ◽  
pp. 198-206 ◽  
Author(s):  
J.A. del Valle ◽  
P. Rey ◽  
D. Gesto ◽  
D. Verdera ◽  
J.A. Jiménez ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Magnesium Alloy ◽  
Friction Stir Processing ◽  
Az91 Magnesium Alloy ◽  
Friction Stir ◽  
Fine Grained ◽  
Az91 Magnesium
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