Title

Crack Deflection in Tungsten Carbide Based Laminates

Abstract

Laminate materials were manufactured by alternating WC-6%Co layers with equal thickness layers of one of the following compositions: WC-16%Co, WC-16%Ni, Co, a W-Ni-Fe alloy, and Ni. One composition used WC-6%Ni in place of WC-6%Co, layered with the W-Ni-Fe alloy. Flexure specimens, consisting of nine alternating layers, were fabricated with either WC-6%Co or WC-6%Ni on the tensile surface of the specimen. The ability of these composites to deflect or arrest cracks was investigated in four point bending. Two of the compositions, WC-6%Co/W-Ni-Fe and WC-6%Co/Ni, exhibited the ability to fail non-catastrophically, showing inelastic work of fracture as high as 34,400 J/m2.

Department(s)

Materials Science and Engineering

Keywords and Phrases

Crack Deflection; Fibrous Monolith; Laminate; Tungsten Carbide; Flexure

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2006 Elsevier Inc., All rights reserved.

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