两种Ti-V-Cr系阻燃钛合金在450℃～650℃下的高温氧化行为

The Oxidation Behavior at 450℃～650℃ for Two Ti-V-Cr β-Stabilized Titanium Alloys

研究了稳定β型钛合金ZT1(Ti-25V-15Cr)和ZT2(Ti-35V-15Cr)在450℃～650℃温区内氧化时的氧化行为。研究结果表明:在低于500℃氧化时,合金氧化的主导因素是合金中钛元素的氧化;高于500℃氧化时,合金中的钒元素以钒氧化物的形式存在是合金氧化的控制因素。

After studying the oxidation behavior of the two β-stabilized titanium alloys(alloy ZT1:Ti-25V-15Cr-xSi and alloy ZT2:Ti-35V-15Cr ),a conclusion can be draw that the two alloys have different oxidation beh avior according to the experiments a t different tem-peratures.When the temperature is l ower than 500℃,the titanium oxidation is dominant for the two alloysoxidation behavior,and when the temperature is higher than 500℃,the existence of vanadium oxide plays an more important role due to the properties of vanadium oxide.