Titanium Zirconium Molybdenum Alloy High Temperature Oxidation Resistance
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- Category: Molybdenum knowledge
- Published on 11 August 2015
- Written by yiping
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High temperature oxidation resistance of molybdenum is very poor. It is heated to about 300 ℃ in the air will begin to oxidation and it will generate cyan oxide film on its surface. When the temperature is heated to 600 ℃, the surface will generate dark green oxide layer. In 600 ~ 700℃, the oxide began to volatile and as the temperature rises the molybdenum is rapidly oxidized to form molybdenum trioxide which is white smoke.
Titanium zirconium molybdenum (TZM) alloy high-temperature oxidation resistance is similar to molybdenum, when heated to 400 ℃ in air, the surface of TZM alloy will form a brown molybdenum dioxide protective layer of non-volatile. When the temperature is higher than 540 ℃, TZM molybdenum alloy is rapidly oxidized to form a layer of non-protected intermediate transition yellow-green oxide layer molybdenum trioxide. Besides, this oxide layer will be volatile when the temperature over 790℃, leading to rapid oxidation and volatile of molybdenum so it is bad for material applications. At the same time, it can also cause deterioration the loss and performance of TZM alloy material.
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