OXIDE FORMATION OF K38G SUPERALLOY AND ITS SPUTTERED MICROGRAINED COATING

被引：77
作者：
LOU, HY
WANG, FH
ZHU, SL
XIA, BJ
ZHANG, LX
机构：
来源：
SURFACE & COATINGS TECHNOLOGY | 1994年 / 63卷 / 02期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1016/S0257-8972(05)80014-3
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The oxide scales formed on the cast Ni-based alloy K38G and its sputtered, micrograined coating at 1000-degrees-C in air have been investigated by optical, electron probe microanalysis, scanning and transmission electron microscopy, and X-ray diffraction measurements. Complex oxide scales formed on the cast alloy composed of the outer layer of Cr2O3, TiO2 and NiCr2O4 and the inner layer of Al2O3 are prone to spallation. On the contrary, only a thin oxide layer of Al2O3 can be observed on the sputtered alloy, and it was very adherent. The formation of the Al2O3 layer and its excellent adhesion may be attributed to the microcrystalline grains of the sputtered material.
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页码：105 / 114
页数：10
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