Using friction stir processing to produce ultrafine-grained microstructure in AZ61 magnesium alloy

2008 ◽  
Vol 18 (3) ◽  
pp. 562-565 ◽  
Author(s):  
Xing-hao DU ◽  
Bao-lin WU
Keyword(s):  
Magnesium Alloy ◽  
Friction Stir Processing ◽  
Friction Stir ◽  
Az61 Magnesium Alloy ◽  
Ultrafine Grained ◽  
Ultrafine Grained Microstructure

Superplasticity Mg Alloy Fabricated by Friction Stir Processing

2014 ◽  
Vol 941-944 ◽  
pp. 93-96 ◽  
Author(s):  
Shang Xiong Sheng ◽  
Yan Li Guo ◽  
Shou Fa Liu ◽  
Song Lin Wu
Keyword(s):  
Magnesium Alloy ◽  
Friction Stir Processing ◽  
Compressive Strain ◽  
Grain Boundary Sliding ◽  
Processing Technique ◽  
Friction Stir ◽  
Az61 Magnesium Alloy ◽  
Dominant Deformation Mechanism ◽  
Boundary Sliding ◽  
State Processing

In this research, one solid state processing technique, friction stir processing, is applied to modify the AZ61 magnesium alloy billet. The FSP modified AZ61 alloy could be refined to 3-8 μm via the dynamic recrystallization during processing. The AZ61 magnesium alloy billet with 75μm grain size could be refined to about 7.5μm by four-pass friction stir processing. The hardness of the stirred zone could increase to around 70-80 after friction stir processing, and after a further compressive strain of about 3% could raise the hardness to 81. The ductility of the weld direction specimens of the modified alloy could have a 235% elongation at 300°C and 1x10-4 s-1. The grain boundary sliding (GBS) might be the dominant deformation mechanism during superplastic deformation.

scholarly journals Stretch Formability of an AZ61 Alloy Plate Prepared by Multi-Pass Friction Stir Processing

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3168
Author(s):  
Xicai Luo ◽  
Haolin Liu ◽  
Limei Kang ◽  
Jielin Lin ◽  
Yifei Liu ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Grain Refinement ◽  
Friction Stir Processing ◽  
Room Temperature ◽  
Applied Load ◽  
Alloy Plate ◽  
Friction Stir ◽  
Az61 Magnesium Alloy ◽  
Az61 Alloy ◽  
Stretch Formability

The stretch formability behavior of an AZ61 magnesium alloy plate produced by multi-pass friction stir processing (M-FSP) was investigated, with the applied load vs. displacement curves recorded during Erichsen cupping tests at different punching speeds at room temperature. The stretch formability of M-FSP AZ61 magnesium alloy was significantly enhanced, compared with that of its cast counterpart. The highest Erichsen index of 3.7 mm was obtained at a punching speed of 0.1 mm/min. The improved stretch formability was mainly attributed to the grain refinement stemming from the M-FSP and the presence of extension twinning to accommodate deformation during Erichsen cupping testing.

scholarly journals Ductility Improvement of an AZ61 Magnesium Alloy through Two-Pass Submerged Friction Stir Processing

Materials ◽  
2017 ◽  
Vol 10 (3) ◽  
pp. 253 ◽  
Author(s):  
Xicai Luo ◽  
Genghua Cao ◽  
Wen Zhang ◽  
Cheng Qiu ◽  
Datong Zhang
Keyword(s):  
Magnesium Alloy ◽  
Friction Stir Processing ◽  
Friction Stir ◽  
Az61 Magnesium Alloy

scholarly journals Fabrication of Recycled Carbon Fiber Reinforced Magnesium Alloy Composite by Friction Stir Processing Using 3-Flat Pin Tool and Its Fatigue Properties

2018 ◽  
Vol 59 (3) ◽  
pp. 475-481 ◽  
Author(s):  
Angga Afrinaldi ◽  
Toshifumi Kakiuchi ◽  
Shohei Nakagawa ◽  
Hiroshi Moritomi ◽  
Kazuhiro Kumabe ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Carbon Fiber ◽  
Friction Stir Processing ◽  
Fatigue Properties ◽  
Alloy Composite ◽  
Fiber Reinforced ◽  
Friction Stir ◽  
Carbon Fiber Reinforced
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