Significant improvement of mechanical properties in NiAl-Cr(Mo)/Hf alloy by suction casting and subsequent hot isostatic pressing

doi:10.1007/s11661-006-9005-5

IMR OpenIR

	Significant improvement of mechanical properties in NiAl-Cr(Mo)/Hf alloy by suction casting and subsequent hot isostatic pressing
	Guo, J. T.; Huai, K. W.; Li, H. T.
通讯作者	Guo, J. T.(jtguo@imr.ac.cn)
	2007
发表期刊	METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
ISSN	1073-5623
卷号	38A 期号:1 页码:35-43
摘要	The NiAl-28Cr-5.5Mo-0.5Hf eutectic alloy was prepared by the suction casting (SC) technique and subsequent hot isostatic pressing (HIP) treatment, and tested for compressive strength and fracture behavior in the temperature range of 300 to 1373 K. The microstructure of suction-cast alloy is characterized by fine interlamellar spacing, large area fraction of eutectic cell, and fine Heusler (Ni2AlHf) phase distributed semicontinuously at the cell boundaries. After HIP treatment, Ni2AlHf phase at the cell boundaries is transformed into Hf solid solution phase and distributed homogeneously within the NiAl matrix. Compared with the conventionally cast alloy, the room-temperature compressive strain and elevated temperature strength of suction-cast alloy are enhanced markedly after HIP treatment. The reason is that the HIP treatment causes Hf solid solution phase to distribute homogeneously and then strengthens the NiAI matrix.
DOI	10.1007/s11661-006-9005-5
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000245702300005
出版者	MINERALS METALS MATERIALS SOC
引用统计	被引频次：5[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/321006/90373
专题	中国科学院金属研究所
通讯作者	Guo, J. T.
作者单位	1.Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China 2.Shanghai Baosteel Res Inst, Shanghai 201900, Peoples R China
推荐引用方式 GB/T 7714	Guo, J. T.,Huai, K. W.,Li, H. T.. Significant improvement of mechanical properties in NiAl-Cr(Mo)/Hf alloy by suction casting and subsequent hot isostatic pressing[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2007,38A(1):35-43.
APA	Guo, J. T.,Huai, K. W.,&Li, H. T..(2007).Significant improvement of mechanical properties in NiAl-Cr(Mo)/Hf alloy by suction casting and subsequent hot isostatic pressing.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,38A(1),35-43.
MLA	Guo, J. T.,et al."Significant improvement of mechanical properties in NiAl-Cr(Mo)/Hf alloy by suction casting and subsequent hot isostatic pressing".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 38A.1(2007):35-43.