Interfacial characteristics and dynamic mechanical properties of W f/Zr-based metallic glass matrix composites

• Published in: Transactions of Nonferrous Metals Society of China Vol. 18; no. 1; pp. 77 - 81
• Main Authors: MA, Wei-feng, KOU, Hong-chao, CHEN, Chun-sheng, LI, Jin-shan, HU, Rui, XING, Li-qian, ZHOU, Lian, FU, Heng-zhi
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.02.2008
• Subjects: dynamic mechanical properties; interface reaction; metallic glasses; push-out method; interface reaction; push-out method; metallic glasses; dynamic mechanical properties
• ISSN: 1003-6326
• DOI: 10.1016/S1003-6326(08)60014-X

Tungsten fiber reinforced Zr 41.25Ti 13.75Cu 12.5Ni 10Be 22.5 metallic glass matrix composites were fabricated by means of melt infiltration casting. Their dynamic compressive tests were performed using a Hopkinson bar. The relationship between the interfacial characteristics and the dynamic compressive behavior was investigated. The results indicate that the interface characteristics of composites include interfacial diffusion and interfacial reaction, and the interfacial shear strength increases when the interfacial reaction is serious. The dynamic plastic performance are improved obviously if the suitable interface reaction occurs. The failure occurs by shear and the fibers split longitudinally if there is no interface reaction or a little reaction; in contrast, holistic failure occurs if there is too much interface reaction.