Substrate and bond coat compositions: factors affecting alumina scale adhesion
Substrate and bond coat compositions: factors affecting alumina scale adhesion
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DOI：
10.1016/s0921-5093(97)00851-4
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发表时间：
1998-05
期刊：
影响因子：
6.4
通讯作者：
B. Pint;I. Wright;Woo Y. Lee;Yanwen Zhang;K. Prüßner;K. B. Alexander
中科院分区：
文献类型：
--
作者：
B. Pint;I. Wright;Woo Y. Lee;Yanwen Zhang;K. Prüßner;K. B. Alexander
ZrO 2顶涂层下方形成的热生长氧化物鳞片在决定隔热涂层的性能方面发挥着重要作用。许多因素，包括合金基体和粘结层的组成，影响α-Al 2 O3氧化膜的附着力。在形成“理想的”粘附性氧化皮方面，有三个重点领域：（1）金属基体中Al和其他元素的迁移，（2）元素向金属氧化皮界面和氧化皮晶界的偏析，以及（3）氧化皮中应力的产生。反应元素，铂，土著S，和反应温度对垢附着力的影响的例子进行了讨论。
Thermally grown oxide scales that form beneath ZrO2top coats play an important role in determining the performance of thermal barrier coatings. Numerous factors, including the composition of both the alloy substrate and the bond coat, affect adhesion of the α-Al2O3scale. Three areas of focus in the formation of an `ideal', adherent scale encompass: (1) migration of Al and other elements in the metal substrate, (2) segregation of elements to the metal–scale interface and the scale grain boundaries, and (3) generation of stresses in the scale. Examples of the effects of reactive elements, Pt, indigenous S, and reaction temperature on scale adhesion are discussed.