Temperature and cycle-time dependence of rumpling in platinum-modified diffusion aluminide coatings

被引：42

作者：

Tolpygo, V. K.

Clarke, D. R. ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Coll Engn, Dept Mat, Santa Barbara, CA 93106 USA

[2] Honeywell Aerosp, Phoenix, AZ 85034 USA

来源：

SCRIPTA MATERIALIA | 2007年 / 57卷 / 07期

关键词：

rumpling; cyclic oxidation; aluminide; superalloy;

D O I：

10.1016/j.scriptamat.2007.06.031

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Cyclic-oxidation-induced rumpling of platinum-modified diffusion nickel aluminide coatings on a typical second-generation superalloy is strongly dependent on temperature above 1100 degrees C with little or no rumpling occurring at lower temperatures. There is also a dependence on the dwell time per cycle. For a given cumulative exposure at the oxidation temperature, shorter cycles result in a greater roughening than longer cycles. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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页码：563 / 566

页数：4

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