OXIDATION BEHAVIOR AND SCALE MORPHOLOGY OF NORMAL-GRAINED COCRAL ALLOY AND ITS SPUTTERED MICROCRYSTALLINE COATING

被引：39

作者：

WANG, F

LOU, H

机构：

[1] Corrosion Science Laboratory, Institute of Corrosion and Protection of Metals, Academia Sinica, Shenyang

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1990年 / 129卷 / 02期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/0921-5093(90)90275-8

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The oxidation behaviour and scale morphology of normal-grained Co-30Cr-5Al alloy and its sputtered microcrystalline coating were studied at 1100 °C in air. The normal-grained alloy exhibited typical breakaway oxidation. Up to 25 h exposure the normal-grained alloy showed protective behaviour due to the formation of α-Al2O3 scale, while after 25 h oxidation the weight increased rapidly due to the cracking and spalling of the Al2O3 scale and the formation of Cr2O3. The sputtered microcrystalline coating exhibited excellent protection compared to the normal-grained alloy. Neither breakaway, scale cracking nor scale spalling was found. © 1990.

引用

页码：279 / 285

页数：7

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