Preprint Article Version 1 This version is not peer-reviewed

Microstructural Characterization and Mechanical Properties of 5 vol.% (TiBw+TiCp)/Ti Composite Produced by Forging

Version 1 : Received: 26 May 2018 / Approved: 6 June 2018 / Online: 6 June 2018 (05:54:56 CEST)

A peer-reviewed article of this Preprint also exists.

Han, J.; Lü, Z.; Zhang, C.; Zhang, S.; Zhang, H.; Lin, P.; Cao, P. The Microstructural Characterization and Mechanical Properties of 5 vol. % (TiBw + TiCp)/Ti Composite Produced by Open-Die Forging. Metals 2018, 8, 485. Han, J.; Lü, Z.; Zhang, C.; Zhang, S.; Zhang, H.; Lin, P.; Cao, P. The Microstructural Characterization and Mechanical Properties of 5 vol. % (TiBw + TiCp)/Ti Composite Produced by Open-Die Forging. Metals 2018, 8, 485.

Journal reference: Metals 2018, 8, 485
DOI: 10.3390/met8070485

Abstract

In this study, a 5vol. % (TiBw+TiCp)/Ti composite pancake with a diameter of 260mm was prepared by casting followed by open die forging in (α+β) phase region. The microstructures of the composite pancake are inhomogeneous, in terms of both matrix microstructure and distribution of reinforcements. The matrix microstructures were gradually refined from the periphery to centre of the pancake. The TiBw and TiCp reinforcements tend to be uniformly distributed in the centre region and. It is suggested that the microstructure difference can be mainly ascribed to the temperature variation from the periphery to the centre. Additionally, tensile testing results showed that the centre region of the composite pancake exhibits higher strength than the peripheral region. The strengthening mechanism and the softening behavior of the composite pancake with temperature is discussed.

Subject Areas

titanium matrix composites; microstructure; mechanical properties; forging

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