摘要
基于Clark氧化生长应变率理论和Wagner氧化模型给出了涂层高温生长应力公式,计算预测了热障涂层中氧化生长应力随时间的演化规律;利用光致发光分析技术对氧化层的应力进行了实验测试,并对两种结果进行了比较和分析。结果表明,本文给出的热障涂层高温氧化生长应力模型预测与实验结果符合。
The equation of oxidation growth stresses for the thermal barrier coating (TBC) was expressed based on Clark's oxidation growth strain rate theory and Wagner's parabolic kinetic model. The evolution regularity of oxidation growth stresses with time in the coating was predicted by calculation. The PSLS (photo-stimulated luminescence spectroscopy) method was also employed to test growth stresses in TBC samples after different oxidation time. Results show that the prediction of the growth stress model for the thermal barrier coating is consistent with the test results.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2010年第12期2122-2126,共5页
Rare Metal Materials and Engineering
基金
国家自然科学基金(10572118)
