日本金属学会誌

J. Japan Inst. Metals, Vol. 70, No. 6 (2006),
pp. 521-523

Effects of Coarse Grain by Secondary Recrystallization Growth for Strength on the Magnesium Alloy AZ31

Hisashi Mori1, Masafumi Noda2, Taro Tsujimura1, Kunio Funami3 and Kenji Higashi4

1Railway Technical Research Institute, Tokyo 185-8540
2JR Souken Engineering Corporation, Tokyo 185-8540
3Department of Engineering, Chiba Institute of Technology, Narashino 275-0016
4Department of Material Science, Osaka Prefecture Univsersity, Sakai 599-8531

Abstract:

Effects of grain growth due to treated by annealing after thermomechanical treatment on the tensile and fatigue strength in Magnesium alloy AZ31 were reported. It was found that coarse grain generated by secondary recrystallization and tensile and fatigue strength was decreased.


(Received 2006/1/16)

Keywords:

magnesium alloy, grain growth, fatigue strength, fracture surface, crack growth rate


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