SYMPOSIA PAPER Published: 19 July 2019

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


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
Price: $25.00
Contact Sales
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
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