Article ID Journal Published Year Pages File Type
1580861 Materials Science and Engineering: A 2010 6 Pages PDF
Abstract
The strain-hardening behavior of Mg alloy AZ31B-H24 deformed in tension was analyzed using the Kocks-Mecking phenomenological approach. The relationship between strain-hardening behavior and dynamic recrystalliztion at elevated temperatures was investigated in this work. At room temperature, stage II strain-hardening consistent with the forest hardening mechanism, which was similar to that observed in face-centered cubic metals, was observed. The specimens tested at temperatures above 250 °C did not show stage II strain-hardening, and their stage III with a decreasing of strain-hardening rate took place immediately after yielding. The absence of stage II strain-hardening should be related to the dynamic recovery and recrystallization, causing the softening effects. The onset of dynamic recovery occurred earlier than that of the dynamic recrystallization (DRX).
Related Topics
Physical Sciences and Engineering Materials Science Materials Science (General)
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