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Title:
Effect of Nb Content on the Microstructure and Mechanical Properties of Zr-Cu-Ni-Al-Nb Glass Forming Alloys
Author: Sun YF(孙玉峰); Shek CH; Wei BC(魏柄忱); Li WH(李维火); Wang YR(王育人)
Source: Journal of Alloys and Compounds
Issued Date: 2005
Volume: 403, Issue:1-2, Pages:239-244
Abstract: (Zr65Al10Ni10Cu15)(100-x) Nb-x glass forming alloys with Nb contents ranging from 0 to 15 at.% were prepared by water-cooled copper mould cast. The alloys with different Nb contents exhibited different microstructures and mechanical properties. Unlike the monolithic Zr65Al10Ni10Cu15 bulk metallic glass, only a few primary bee beta-Ti phase dendrites were found to distribute in the glassy matrix of the alloys with x = 5. For alloys with x = 10, more beta-phase dendrites forms, together with quasicrystalline particles densely distributed in the matrix of the alloys. For alloys with x = 15, the microstructure of the alloy is dominated by a high density of fully developed P-phase dendrites and the volume fraction of quasicrystalline particles significantly decreases. Room temperature compression tests showed that the alloys with x = 5 failed at 1793 MPa and exhibited an obvious plastic strain of 3.05%, while the other samples all failed in a brittle manner. The ultimate fracture strengths are 1793, 1975 and 1572 MPa for the alloys with x = 0, 10 and 15 at.% Nb, respectively.
Language: 英语
Indexed Type: SCI
Corresponding Author: Shek, CH (reprint author), City Univ Hong Kong, Dept Phys & Mat Sci, 83 Tat Chee Ave, Kowloon Tong, Hong Kong, Peoples R China.
Correspondent Email: apchshek@cityu.edu.hk
DOI: 10.1016/j.jallcom.2005.06.006
DOC Type: Article
WOS Subject: Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS Subject Extended: Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS Keyword Plus: BULK METALLIC-GLASS ; PHASE DENDRITE DISPERSIONS ; ENHANCED PLASTICITY ; MATRIX COMPOSITES ; BEHAVIOR
WOS ID: WOS:000233311800036
ISSN: 0925-8388
Subject: 力学
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/16311
Appears in Collections:力学所知识产出(1956-2008)_期刊论文

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Recommended Citation:
Sun YF,Shek CH,Wei BC,et al. Effect of Nb Content on the Microstructure and Mechanical Properties of Zr-Cu-Ni-Al-Nb Glass Forming Alloys[J]. Journal of Alloys and Compounds,2005-01-01,403(1-2):239-244.
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