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Study on High Temperature Oxidation of Al60Mn13Ti25V2 Intermetallic |
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北京科技大学材料物理系 |
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Abstract Al60Mn13Ti25V2 intermetallic was heat treated by two ways.One was complex treatment of hot isostatic pressing (HIP)at 1200℃ and 173 MPa for 4 hours following homogenization treatment in vacuum furnace (4×10-4Pa)at 1100℃ for 48 hours.The other way was just homogenization treatment with the samecondition.Static and cycle oxidation behavior of the alloys treated by the two ways were studied at 900℃ and 1000℃ respectively.The results showed that oxidation resistance was high for the both treated alloys under the condition of static oxidation.Under the condition of cycle oxidation,ho
wever,the oxidation resistance of the HIP treated alloy was much better than that of the single homogenized treatment.The reason was that the HIP decreased porosity and Mn-rich region.
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Received: 30 June 2003
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