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钛及其合金由于具有优异的比强度和高温强度,从而在航空工业中得到广泛应用。但是,钛在高温下是一种极为活泼的金属,它会与氧发生反应而脆化,机械性能也会相应降低。正因为在高温下,当钛合金暴露在含有氧的环境中时其塑性会降低,所以钛合金的长时间使用温度必须低于425℃,并可短时间在低于535℃下使用。当在钛表面涂覆一层防氧化的涂层后,太合金就可在高温下使用。这种涂层可通过反应在表面生成一层保护层,它作为一种屏障可以有效地阻止钛与氧的接触,阻碍氧的
Titanium and its alloys have been widely used in the aviation industry due to their excellent specific strength and high temperature strength. However, titanium is a very lively metal at high temperatures, it reacts with oxygen and becomes brittle, and the mechanical properties are also reduced accordingly. Precisely because at high temperature, the plasticity of the titanium alloy decreases when it is exposed to oxygen-containing environments. Therefore, the titanium alloy must be used for a long period of time below 425 ° C and for a short period of time below 535 ° C. When the titanium surface coated with a layer of anti-oxidation coating, too alloy can be used at high temperatures. This coating can be formed by the reaction of a protective layer on the surface, as a barrier can effectively prevent the contact of titanium and oxygen, obstructing the oxygen