理解含体心立方枝晶的钛基块状金属玻璃基复合材料中的拉伸变形

Towards an understanding of tensile deformation in Ti-based bulk metallic glass matrix composites with BCC dendrites.

作者信息

Kolodziejska Joanna A, Kozachkov Henry, Kranjc Kelly, Hunter Allen, Marquis Emmanuelle, Johnson William L, Flores Katharine M, Hofmann Douglas C

机构信息

Keck Laboratory of Engineering, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA.

Institute of Materials Science &Engineering, Department of Mechanical Engineering &Materials Science, Washington University, One Brookings Dr., Campus Box 1185, St Louis, MO 63130, USA.

出版信息

Sci Rep. 2016 Mar 2;6:22563. doi: 10.1038/srep22563.

DOI:10.1038/srep22563

PMID:26932509

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4773831/

Abstract

The microstructure and tension ductility of a series of Ti-based bulk metallic glass matrix composite (BMGMC) is investigated by changing content of the β stabilizing element vanadium while holding the volume fraction of dendritic phase constant. The ability to change only one variable in these novel composites has previously been difficult, leading to uninvestigated areas regarding how composition affects properties. It is shown that the tension ductility can range from near zero percent to over ten percent simply by changing the amount of vanadium in the dendritic phase. This approach may prove useful for the future development of these alloys, which have largely been developed experimentally using trial and error.

摘要

通过改变β稳定元素钒的含量，同时保持枝晶相的体积分数不变，研究了一系列钛基块状金属玻璃基复合材料（BMGMC）的微观结构和拉伸延展性。此前，在这些新型复合材料中仅改变一个变量的能力一直很困难，这导致了关于成分如何影响性能的未研究领域。结果表明，仅通过改变枝晶相中钒的含量，拉伸延展性可从接近零百分比变化到超过百分之十。这种方法可能被证明对这些合金的未来发展有用，这些合金在很大程度上是通过反复试验进行实验开发的。