Tensile properties and microstructures of NiAl-20TiB(2) and NiAl-20TiC in situ composites

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	Tensile properties and microstructures of NiAl-20TiB(2) and NiAl-20TiC in situ composites
	J. T. Guo; D. T. Jiang; Z. P. Xing; G. S. Li
	1997
发表期刊	Materials & Design
ISSN	0261-3069
卷号	18 期号:4-6 页码:357-360
摘要	A hot-pressing aided exothermic synthesis (HPES) technique was developed to fabricate NiAl matrix composites reinforced with TiB2 and TiC particles which were in situ reaction synthesized from elemental powders. These particles were uniformly dispersed in the matrix. The resulting products were hot isostatically pressed to nearly complete densification. It was found that the tensile yield strengths of the composites at 900 degrees C were about two times stronger than that of unreinforced NiAl and were approximately three times stronger at 980 degrees C. The interfaces between NiAl and TiC or TiB2 were atomically flat, sharp and free from any interfacial phases in most cases, however, a thin interfacial amorphous layer or overlapped interfacial layer was observed at the interfaces in some cases. This type of interfacial structure may be beneficial to the strength of the composites. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.
部门归属	beijing inst aeronaut mat, beijing 100095, peoples r china. chinese acad sci, inst met res, shenyang 110015, peoples r china.
关键词	Tensile Properties Microstructures Nial-20tib(2) Nial-20tic In Situ Composites Compression Properties Interfaces Deformation Particulate 1200-k 1300-k
URL	查看原文
WOS记录号	WOS:000073649100029
引用统计	被引频次：21[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/321006/37966
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. T. Guo,D. T. Jiang,Z. P. Xing,et al. Tensile properties and microstructures of NiAl-20TiB(2) and NiAl-20TiC in situ composites[J]. Materials & Design,1997,18(4-6):357-360.
APA	J. T. Guo,D. T. Jiang,Z. P. Xing,&G. S. Li.(1997).Tensile properties and microstructures of NiAl-20TiB(2) and NiAl-20TiC in situ composites.Materials & Design,18(4-6),357-360.
MLA	J. T. Guo,et al."Tensile properties and microstructures of NiAl-20TiB(2) and NiAl-20TiC in situ composites".Materials & Design 18.4-6(1997):357-360.