Fatigue behavior of annealed cold-sprayed 316L stainless steel coating for biomedical applications

The fatigue life of the annealed low-carbon stainless steel cold-sprayed coating was measured with a servohydraulic mechanical testing machine and compared with that of bulk stainless steel. The fatigue resistance in the annealed cold-sprayed coating was lower than the bulk resistance. Fractography...

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Bibliographic Details
Published in:Materials letters 2013-01, Vol.91 (15), p.352-355
Main Authors: AL-Mangour, B., Dallala, R., Zhim, F., Mongrain, R., Yue, S.
Format: Article
Language:English
Subjects:
annealing
coatings
Cold gas dynamic spray
Compressive stress
Fatigue
Fractography
stainless steel
Stiffness
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Summary:The fatigue life of the annealed low-carbon stainless steel cold-sprayed coating was measured with a servohydraulic mechanical testing machine and compared with that of bulk stainless steel. The fatigue resistance in the annealed cold-sprayed coating was lower than the bulk resistance. Fractography of cold-sprayed coatings after annealing at 1100°CC and bulk specimen was also used to analyze the fatigue behavior. The poor fatigue resistance was related to incomplete particle–particle bonding. ► Using cold spraying, dense 316L coatings were obtained. ► The fatigue resistance in the annealed cold-sprayed coating was lower than the bulk resistance. ► The poor fatigue resistance was related to incomplete particle–particle bonding.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2012.10.030