Effect of Alloy Elements on Kinetics of Thermal Oxidation for Titanium
Abstract: TA18 titanium alloy and TA2 pure titanium were used as materials, and the thermal oxidation process was carried out in a conventional muffle furnace; the oxide layer was investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD), and thermal oxidation kinetics was studied by static gain weight method. The results show that the surfaces of both TA18 titanium alloy and TA2 pure titanium were oxidized, but TA18 had better thermal oxidation resistance than TA2. The oxide film formed on the surface of TA18 titanium alloy was dominated by rutile TiO2, and a small amount of Al2O3. While the oxide film formed on the surface of pure titanium in TA2 was rutile TiO2 only. When the oxidation temperature was 600 and 700, the oxidation kinetics curve was followed by the parabolic law. In the same thermal oxidation temperature and time, the thermal oxidation rate of TA18 titanium alloy was slower than that of TA2 pure titanium.
文章引用: 庄 晔 , 邱永宁 , 王大月 , 李景才 , 胡 静 (2015) 合金元素对钛材热氧化动力学的影响。 材料科学， 5， 208-212. doi: 10.12677/MS.2015.55028
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