Effect of Yttrium on High Temperature Oxidation Resistance of a Directionally Solidified Superalloy
来源期刊：JOURNAL OF RARE EARTHS2004年第6期
论文作者：宋立国 韩雅芳 李树索 郑运荣
Key words：yttrium; superalloy; high temperature oxidation; rare earths;
Abstract: The effect of rare earth element yttrium on the high temperature oxidation resistance of a directionally solidified Ni-base superalloy was studied with scanning electron microscopy(SEM), energy dispersive spectrum(EDS)and X-ray diffraction(XRD)techniques. The results show that the oxidation resistance of the alloy is substantially improved by adding proper amount of yttrium.
宋立国1，韩雅芳1，李树索1，郑运荣1
(1.School of Material Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China)
Abstract:The effect of rare earth element yttrium on the high temperature oxidation resistance of a directionally solidified Ni-base superalloy was studied with scanning electron microscopy(SEM), energy dispersive spectrum(EDS)and X-ray diffraction(XRD)techniques. The results show that the oxidation resistance of the alloy is substantially improved by adding proper amount of yttrium.
Key words:yttrium; superalloy; high temperature oxidation; rare earths;
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