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题名: Distribution of Be in a Ti-Based Bulk Metallic Glass Composite Containing B-Ti
作者: Zhang, L.;  Li, W. Q.;  Zhu, Z. W.;  Fu, H. M.;  Li, H.;  Li, Z. K.;  Zhang, H. W.;  Wang, A. M.;  Zhang, H. F.
发表日期: 2017-7-1
摘要: In order to obtain a glassy matrix during quenching, Be is often selected as a constituent of the compositions of Ti/Zr-based bulk metallic glass composites (BMGCs). The in situ formed beta phase in Be-bearing BMGCs was reported to be Be-free. However, a thorough investigation of the distribution of Be in BMGCs is still missing to date. In this work, the distribution of Be in a Ti47.5Zr33Cu5.8Co3Be12.5 (at.%) BMGC was studied by the secondary ion mass spectrometry (SIMS) and the electron energy loss spectroscopy (EELS). It is found that Be almost totally dissolves in the glassy matrix, but a very weak intensity of Be in beta phase is still detectable by SIMS, and the content of Be in beta-Ti is estimated to be about 0.3 at.%. Based on the recently established two-phase quasi-equilibrium of BMGCs, the distinct solubility of Be in the glassy matrix and in beta-Ti has been explained. (C) 2016 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
Appears in Collections:中国科学院金属研究所_期刊论文

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Recommended Citation:
Zhang, L.,Li, W. Q.,Zhu, Z. W.,et al. Distribution Of Be In A Ti-based Bulk Metallic Glass Composite Containing B-ti[J]. Journal Of Materials Science & Technology,2017,33(7):708-711.

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