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Two-phase quasi-equilibrium in beta-type Ti-based bulk metallic glass composites
Zhang, L.; Pauly, S.; Tang, M. Q.; Eckert, J.; Zhang, H. F.; s.pauly@ifw-dresden.de; hfzhang@imr.ac.cn
2016
发表期刊SCIENTIFIC REPORTS
ISSN2045-2322
卷号6页码:-
摘要The microstructural evolution of cast Ti/Zr-based bulk metallic glass composites (BMGCs) containing beta-Ti still remains ambiguous. This is why to date the strategies and alloys suitable for producing such BMGCs with precisely controllable volume fractions and crystallite sizes are still rather limited. In this work, a Ti-based BMGC containing beta-Ti was developed in the Ti-Zr-Cu-Co-Be system. The glassy matrix of this BMGC possesses an exceptional glass-forming ability and as a consequence, the volume fractions as well as the composition of the beta-Ti dendrites remain constant over a wide range of cooling rates. This finding can be explained in terms of a two-phase quasi-equilibrium between the supercooled liquid and beta-Ti, which the system attains on cooling. The two-phase quasi-equilibrium allows predicting the crystalline and glassy volume fractions by means of the lever rule and we succeeded in reproducing these values by slight variations in the alloy composition at a fixed cooling rate. The two-phase quasi-equilibrium could be of critical importance for understanding and designing the microstructures of BMGCs containing the beta-phase. Its implications on the nucleation and growth of the crystalline phase are elaborated.
部门归属[zhang, l. ; tang, m. q. ; zhang, h. f.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china ; [zhang, l. ; pauly, s. ; eckert, j.] ifw dresden, inst complex mat, d-01069 dresden, germany ; [eckert, j.] tech univ dresden, inst mat sci, d-01062 dresden, germany
资助者National Natural Science of Foundation of China [51434008]; Strategic Priority Research Program on Space Science; Chinese Academy of Sciences [XDA04020411, XDA04020202-11]; Program of "One Hundred Talented People" of the Chinese Academy of Sciences; Chinese Scholarship Council (CSC); German Science Foundation (DFG) under the Leibniz Program [EC111/26-1]; European Research Council [ERC-2013-ADG-340025]
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/75230
专题中国科学院金属研究所
通讯作者s.pauly@ifw-dresden.de; hfzhang@imr.ac.cn
推荐引用方式
GB/T 7714
Zhang, L.,Pauly, S.,Tang, M. Q.,et al. Two-phase quasi-equilibrium in beta-type Ti-based bulk metallic glass composites[J]. SCIENTIFIC REPORTS,2016,6:-.
APA Zhang, L..,Pauly, S..,Tang, M. Q..,Eckert, J..,Zhang, H. F..,...&hfzhang@imr.ac.cn.(2016).Two-phase quasi-equilibrium in beta-type Ti-based bulk metallic glass composites.SCIENTIFIC REPORTS,6,-.
MLA Zhang, L.,et al."Two-phase quasi-equilibrium in beta-type Ti-based bulk metallic glass composites".SCIENTIFIC REPORTS 6(2016):-.
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