Microstructure and Tensile Properties of 1-D Forged (TiB+TiC)/Ti Composite

Abstract:

In this work, 2.5vol. % (TiB+TiC)/Ti composite was prepared by in situ casting route then 1-D forging. The microstructure and tensile properties were presented and discussed. The results indicate that the as cast microstructure can be significantly modified by 1-D forging. After forging, TiB and TiC segregated at the prior β grain boundaries within the as-cast composite tend to fracture and align perpendicular to forging direction. Reduction in aspect ratio of reinforcements and α lath is also observed. 1-D forging can enhance the strength and elongation of as cast composite significantly. However, the increment in strength is quite limited as strain temperature increases to 700 °C. Additionally, room temperature and high temperature fracture mechanisms are also discussed.

• Periodical: Materials Science Forum (Volumes 747-748)
• Pages: 926-931
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.747-748.926
• Online since: February 2013
• Authors: Chang Jiang Zhang, Fan Tao Kong, Shu Long Xiao, Li Juan Xu, Yuong Chen, Ning Jia Deng, We Ge, Guo Jun Xu
• Keywords: Forged, Microstructure, Tensile Properties, Titanium Matrix Composites

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