Study of doping effect of NbInTiAlalloy by positron annihilation spectrum

	Study of doping effect of NbInTiAlalloy by positron annihilation spectrum
	Zhang LZ(张兰芝); Wang BY(王宝义); Wang DN(王丹妮); Wei L(魏龙); Zhang, LZ; Wang, BY; Wang, DN; Wei, L; Lin, JP; Wang, WJ
刊名	ACTA METALLURGICA SINICA
	2007
卷号	43 期号:3 页码:#REF!
关键词	positron annihilation lifetime coincidence Doppler broadening TiAl alloy
其他题名	正电子湮没谱研究Nb在TiAl合金中的掺杂效应
通讯作者	Wang, BY (reprint author), Chinese Acad Sci, Inst High Energy Phys, Key Lab Nucl Anal Tech, Beijing 100049, Peoples R China.
英文摘要	Positron annihilation lifetime and coincidence Doppler broadening measurements have been performed for Ti51Al49 alloy with different amounts of Nb. The experimental results indicate that when a low amount of Nb atoms is added into Ti51Al49 alloy, the Nb atoms mainly aggregate at grain boundaries, which increased the free electron density at boundaries and improved the toughness at room temperature of TiAl alloys. In contrast, the densities of free electron at grain boundaries and in bulk decreased for high Nb doped alloy, due to the formation of the new ordering structure, which increases the brittleness of TiAl alloys.
学科主题	Metallurgy & Metallurgical Engineering
类目[WOS]	Metallurgy & Metallurgical Engineering
收录类别	SCI
WOS记录号	WOS:000245687500009
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/227304]
专题	高能物理研究所_多学科研究中心
推荐引用方式 GB/T 7714	Zhang LZ,Wang BY,Wang DN,et al. Study of doping effect of NbInTiAlalloy by positron annihilation spectrum[J]. ACTA METALLURGICA SINICA,2007,43(3):#REF!.
APA	张兰芝.,王宝义.,王丹妮.,魏龙.,Zhang, LZ.,...&Wang, WJ.(2007).Study of doping effect of NbInTiAlalloy by positron annihilation spectrum.ACTA METALLURGICA SINICA,43(3),#REF!.
MLA	张兰芝,et al."Study of doping effect of NbInTiAlalloy by positron annihilation spectrum".ACTA METALLURGICA SINICA 43.3(2007):#REF!.