Oxidation Behavior of Pure Titanium at High Temperatures in Air at Reduced Pressures
Oxidation Behavior of Pure Titanium at High Temperatures in Air at Reduced Pressures
复制标题
纯钛在减压空气中高温下的氧化行为
DOI：
10.2355/tetsutohagane1955.78.2_327
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发表时间：
1992
影响因子：
0.3
通讯作者：
T. Ōoka
中科院分区：
文献类型：
--
作者：
K. Kusabiraki;T. Sugihara;T. Ōoka
简介：采用金相和电子探针显微分析技术研究了纯钛在1000 ~ 1400 K、67 ~ 2670 Pa空气中的氧化行为。在低于1200 K（67 Pa）和1300 K（267和2670 Pa）及以上温度下，氧化膜分别由周期性多层膜和平行于反应界面的单层金红石膜组成。周期性多层氧化膜的生长动力学和氧在钛中的渗透深度服从抛物线速率定律。它们的表观活化能分别为248-263 kJ/mol和156-183 kJ/mol。讨论了它们的速控扩散元件。
Synopsis : The oxidation behavior of pure titanium at 1 000-1 400 K has been studied in air at 67-2 670 Pa using metallographic and electron probe microanalysis techniques. Oxidation scales formed at temperatures less than 1 200 K (67 Pa) and 1 300 K (267 and 2 670 Pa) and more than them consisted of periodic multilayers and a single layer of rutile parallel to the reaction interface, respectively. The growth kinetics of periodic multilayers of scale and the permeation depth oxygen in titanium were obayed parabolic rate laws. The apparent activation energies for them were estimated to be 248-263 kJ/mol and 156-183 kJ/mol, respectively. The rate determining diffusion elements for them were discussed.