Distribution of Be in a Ti-Based Bulk Metallic Glass Composite Containing B-Ti

查看全文 作　　者：[1]L.Zhang;[1]W.Q.Li;[1]Z.W.Zhu;[1]H.M.Fu;[1]H.Li;[1]Z.K.Li;[1]H.W.Zhang;[1]A.M.Wang;[1]H.F.Zhang

机构地区：[1]Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 110016 Shenyang, China

出　　处：《Journal of Materials Science & Technology》索引2017年第33卷第7期,共4页

基　　金：support from the National Natural Science Foundation of China (Nos. 51434008, U1435204, and 51531005);the China’s Manned Space Station Project (Mission No.: TGJZ800-2-RW024);the Shuangchuang Project of Jiangsu Province, China 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 β 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 Ti_(47.5)Zr_(33)Cu_(5.8)Co_3Be_(12.5)(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 β phase is still detectable by SIMS, and the content of Be in β-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 β-Ti has been explained. 关键词：大块金属玻璃复合材料 TI 电子能量损失谱含硼次级离子质谱淬火过程组成成分

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Distribution of Be in a Ti-Based Bulk Metallic Glass Composite Containing B-Ti

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