Effect of different oxidation modes on the growth of oxide layer of TC11 titanium alloy

被引:3
作者
Li, Weiming [1 ]
Yang, Zhong [1 ]
Wang, Ping [1 ]
Liu, Lele [1 ]
Wang, Yimeng [1 ]
Wang, Shaoqing [1 ]
Chang, Li [1 ]
Ma, Li [2 ]
机构
[1] Xian Technol Univ, Sch Mat & Chem Engn, Xian 710021, Peoples R China
[2] Guangdong Univ Petrochem Technol, Maoming 525000, Peoples R China
来源
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2024年 / 32卷
基金
中国国家自然科学基金;
关键词
TC11 titanium alloy; Isothermal oxidization; Cyclic oxidization; Oxide growth kinetics; HIGH-TEMPERATURE OXIDATION; MECHANICAL-PROPERTIES; BETA-TITANIUM; ISOTHERMAL OXIDATION; ALPHA-TITANIUM; DEGREES-C; BEHAVIOR; OXYGEN; MICROSTRUCTURE; RESISTANCE;
D O I
10.1016/j.jmrt.2024.09.005
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In order to study the effect of isothermal oxidation and cyclic oxidation on the oxide layer growth process of titanium alloys, high-temperature oxidization tests were conducted on TC11(Ti-6.5Al-3.5Mo-1.5Zr-0.3Si)titanium alloy in air at 650 C-degrees. After 300 h of oxidization, the isothermal oxidation causes the formation of a dense oxide layer, contributing to increased resistance to further oxidization. During cyclic oxidization, the oxide layer exhibits a needle-like feature, containing large pores. The thickness of the oxide layers formed by cyclic oxidation and isothermal oxidation are approximately 8.6 mu m and 2.7 mu m, respectively. Under specific temperatures and oxidizing times, the isothermal oxidation process is controlled by the diffusion mechanism of oxygen, whereas the cyclic oxidation process is controlled by a combination of the interfacial reaction control and the diffusion mechanism of oxygen. This results in greater diffusion coefficients and faster growth kinetics for cyclic oxidation.
引用
收藏
页码:4265 / 4277
页数:13
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