FeAl基合金的高温抗氧化性能分析.pdf
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材料热处理技术 Material Heat Treatment 2009 10
FeAl 基合金的高温抗氧化性能分析
1 1 2
刘祥荣 张树增 姜锦程
, ,
北京化工大学化学工程学院 北京 北京科技大学材料科学与工程学院 北京
(1. , 100029; 2. , 100083)
摘 要:设计了二组化学成分不同的FeAl 基合金,进行了 1000 ℃的高温氧化试验,并对其进行了分析。 结果表明,
含碳量较高的材质较普通 基合金的硬度高; 元素改善晶界脆性, 使晶界固溶强化,提高了材料的冲击韧度
FeAl B Zr
和抗拉强度;1000 ℃下,含碳量较低的FeAl 基合金呈完全抗氧化性,其循环氧化动力学曲线均服从抛物线规律。
关键词: 基合金; 抗氧化性能
FeAl
中图分类号: + 文献标识码: 文章编号:
TG146.2 1 A 1001-3814(2009)20-0038-04
Analysis on Oxidation Resistance of FeAl System Alloy at High-temperature
1 1 2
LIU Xiangrong , ZHANG Shuzeng , JIANG Jincheng
(1. College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China; 2. College of
Material Science and Engineering, University of Science Technology Beijing, Beiing 100083, China)
:
Abstract The two kinds of FeAl system with different chemical composition were designed, and its properties of
oxidation resistance were analyzed by oxidation test at 1000 ℃ . The results show that the material containing high
percentage of carbon has higher hardness than ordinary FeAl system alloy; B element can improve grain boundary
embrittlement, Zr makes the grain boundary solution-strengthen, the im
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