Grain Refinement of Mg-Y-Zn Alloy by Friction Stir Processing

Taiki Morishige; Masato Tsujikawa; Sachio Oki; M. Kamita; Sung Wook Chung; Kenji Higashi

doi:10.4028/www.scientific.net/AMR.26-28.465

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 26-28Grain Refinement of Mg-Y-Zn Alloy by Friction Stir...

Grain Refinement of Mg-Y-Zn Alloy by Friction Stir Processing

Abstract:

Grain refinement of magnesium alloy by Friction Stir Processing (FSP) was investigated. It is assumed that dynamic recrystallization (DRX) is occurred by frictional heat and plastic flow during FSP. This process is the effective method of the grain refinement for light metals. In this study, FSP was conducted to cast Mg alloys for and the difference of the grain refinement by DRX in these alloys was examined. As a result, in comparison with commercial Mg-Al-Zn alloy and Mg-Y-Zn alloy have finer microstructure. The grain size of FSP-ed Mg-Y-Zn alloy was ~1.7 [/m], however, that of AZ31 alloy was 20~30 [/m].

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Periodical:

Advanced Materials Research (Volumes 26-28)

Pages:

465-468

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.26-28.465

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Online since:

October 2007

Authors:

Taiki Morishige, Masato Tsujikawa, Sachio Oki, M. Kamita, Sung Wook Chung, Kenji Higashi

Keywords:

Dynamic Recrystallization (DRX), Friction Stir Processing (FSP), Grain Refinement, Magnesium Alloy

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