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Effect of Processing Order on Strengthening of Friction Stirred Mg-Y-Zn Alloy

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Abstract:

High-strength Mg-Y-Zn alloy plate was obtained by friction stir processing (FSP) after casting. In this study, the effect of processing order on the strength of processed specimens was discussed. It was revealed that the microstructures and strength of doubly stirred zone depended on the direction of overlapping pass. In the area of the doubly stirred zone that was affected by the thermal history of Retreating-side, the hardness was 121Hv. It was twice as hard as Base Metal, and harder than the doubly stirred zone that was affected by thermal history of Advancing-side.

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Periodical:

Materials Science Forum (Volumes 558-559)

Pages:

817-820

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.558-559.817

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Online since:

October 2007

Authors:

Masato Tsujikawa, Maho Tanaka, Taiki Morishige, Sung Wook Chung, Sachio Oki, Kenji Higashi

Keywords:

Cast Alloys, Friction Stir Process, Magnesium-Yttrium-Zinc Alloys, Thermal History

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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