Effect of nanocrystallization on the oxide formation of Ni-5Cr-5Al alloy

被引：6

作者：

Chen, GF ^{[1
]}

Lou, HY ^{[1
]}

机构：

[1] Acad Sinica, Inst Corros & Protect Met, State Key Lab Corros & Protect, Shenyang 110015, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE LETTERS | 1999年 / 18卷 / 23期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1023/A:1006657904501

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The oxidation resistance of Ni-based superalloys is improved through nanocrystallization. The improvement in oxidation was attributed to the promotion of selective oxidation of Al producing an external layer of Al2O3 and the improvement of the adhesion between oxide scales and base metal through nanocrystallization. Nanocrystallization could alter Ni-20Cr-2Al from Cr2O3-forming alloy to Al2O3-forming alloy. Therefore, the boundaries between various oxide types in the oxide map of Ni-Cr-Al with normal-grained could be changed through nanocrystallization. A Ni-Cr-Al ternary alloy with both low Cr and low Al contents was developed and its nanocrystalline coating was produced, the oxide formation of nanocrystalline coating was investigated.

引用

页码：1957 / 1959

页数：3

共 9 条

[1] OXIDATION OF NI-CR-AL ALLOYS BETWEEN 1000 DEGREES AND 1200 DEGREES C [J].