Effect of Mo, Ta, and Re on high-temperature oxidation behavior of minor HI doped β-NiAl alloy

被引：76

作者：

Han, Baohong

Ma, Yue ^{[1
,2
]}

Peng, Hui ^{[1
,2
]}

Zheng, Lei ^{[1
,2
]}

Guo, Hongbo ^{[1
,2
]}

机构：

[1] Beijing Key Lab Adv Funct Mat & Thin Film Technol, Beijing, Peoples R China

[2] Beihang Univ BUAA, Minist Educ, Key Lab Aerosp Mat & Performance, Beijing 100191, Peoples R China

来源：

CORROSION SCIENCE | 2016年 / 102卷

关键词：

Intermetallics; Rare earth elements; Thermal cycling; Oxidation; Interfaces; Segregation; THERMAL BARRIER COATINGS; CYCLIC-OXIDATION; BOND COAT; REACTIVE ELEMENTS; SCALE ADHESION; RESISTANCE; GROWTH; AL; PHASE; CONSTITUTION;

D O I：

10.1016/j.corsci.2015.10.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The microstructure and cyclic oxidation behavior of minor Hf-doped NiAl alloys with addition of different alloying elements including Mo, Ta, and Re were investigated. Co-precipitation of Ta and Hf as well as Re and Hf occurred during alloy preparation, whereas Mo and Hf precipitated individually into different phases. Over 0.5 at.% addition of Mo, Ta and Re had negative influence on the oxidation behavior of beta-NiAlHf alloy, while the effect could be ignorable once the concentration reduced to less than 0.05 at.%. The interaction mechanism between Ta and Hf as well as Re and Hf was discussed. (C) 2015 Elsevier Ltd. All rights reserved.

引用

收藏

页码：222 / 232

页数：11

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