Fracture and Fatigue Properties of Cobalt Chrome Alloys Used For Medical Implants

Kenneth Perry; Julian Trowbridge

doi:10.1520/STP161620180036

SYMPOSIA PAPER Published: 19 July 2019

STP161620180036

Fracture and Fatigue Properties of Cobalt Chrome Alloys Used For Medical Implants

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A method for determining the fatigue limit properties for metallic medical implant materials using an engineered test specimen is described. Here, we examine the fatigue properties of an as-received cobalt chrome alloy with accelerated testing to 10 million cycles for three R-ratios. Failure probability curves in alternating-mean stress space are determined to provide limit criteria for evaluating similar geometries during design optimization and validation.

Author Information

Perry, Kenneth, E.

ECHOBIO LLC, Bainbridge Island, WA, US

Trowbridge, Julian

Aortica Corp., Bellevue, WA, US

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Developed by Committee: E08

Pages: 125–131

DOI: 10.1520/STP161620180036

ISBN-EB: 978-0-8031-7678-2

ISBN-13: 978-0-8031-7677-5

Fracture and Fatigue Properties of Cobalt Chrome Alloys Used For Medical Implants

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