Prasad, Y. V. R. K. ; Rao, K. P. (2009) Effect of homogenization on the hot deformation behavior of cast AZ31 magnesium alloy Materials & Design, 30 (9). pp. 3723-3730. ISSN 0261-3069
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S02613...
Related URL: http://dx.doi.org/10.1016/j.matdes.2009.02.006
Abstract
The changes in the hot working behavior of as-cast AZ31 magnesium alloy occurring due to homogenization have been studied using processing maps. The map for as-cast material exhibits three workability domains of dynamic recrystallization, the industrially viable one being in the temperature range of 325-400°C and strain rate range of 0.3-1.0 s−1. The homogenization treatment, which dissolves the intermetallic particles present at the grain boundaries of as-cast material, improves hot workability by expanding the workability domains and reducing the intercrystalline cracking and flow instability regimes. The rate-controlling mechanisms are however unchanged by the homogenization treatment.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Heat Treatment (C); Microstructure (F); Plastic Behavior (F) |
| ID Code: | 37943 |
| Deposited On: | 30 Apr 2011 08:41 |
| Last Modified: | 30 Apr 2011 08:41 |
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