Preliminary investigation on solid solution softening effects on NiAl based alloys induced by minor Ru alloying addition

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	Preliminary investigation on solid solution softening effects on NiAl based alloys induced by minor Ru alloying addition
	H. T. Li; J. T. Guo; K. W. Huai; H. Q. Ye
	2007
发表期刊	Materials Science and Technology
ISSN	0267-0836
卷号	23 期号:2 页码:189-194
摘要	The effects of micro-Ru alloying addition on NiAl alloys were investigated by optical microscopy, SEM, X-ray diffraction and powder X-ray diffraction. The mechanical properties were characterised by Vickers microhardness measurement and compression tests at room temperature and various elevated temperatures. Micro-Ru alloying addition does not modify the crystal structure of NiAl alloys. However, local electronic structure may be modified owing to the specific site occupancy preference of Ru, smaller size difference between Ru and Al and different electronic nature of Ru and Ni. This is partially verified by the decrease of the long range order degree accurately measured via powder X-ray diffraction. As a result, a maximum softening effect occurs at 0.5 at.-% Ru addition indicated by Vickers microhardness measurement and compression testing results.
部门归属	chinese acad sci, inst met res, superalloys div, shenyang 110016, peoples r china. chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;guo, jt (reprint author), chinese acad sci, inst met res, superalloys div, shenyang 110016, peoples r china;jtguo@imr.ac.cn
关键词	Nial X-ray Diffraction Long Range Order Degree Mechanical-properties Thermal-stability Mosi2 System Deformation Phase Microstructure Aluminides Compound Behavior
URL	查看原文
WOS记录号	WOS:000244877700010
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33634
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. T. Li,J. T. Guo,K. W. Huai,et al. Preliminary investigation on solid solution softening effects on NiAl based alloys induced by minor Ru alloying addition[J]. Materials Science and Technology,2007,23(2):189-194.
APA	H. T. Li,J. T. Guo,K. W. Huai,&H. Q. Ye.(2007).Preliminary investigation on solid solution softening effects on NiAl based alloys induced by minor Ru alloying addition.Materials Science and Technology,23(2),189-194.
MLA	H. T. Li,et al."Preliminary investigation on solid solution softening effects on NiAl based alloys induced by minor Ru alloying addition".Materials Science and Technology 23.2(2007):189-194.