Additive manufacturing of Co–Cr alloys for biomedical applications: A concise review

Metal additive manufacturing processes offer unique opportunities for the biomedical industry owing to their ability to produce custom-designed implants with near-net shape and intricate geometry. Co–Cr alloys are among the most popular metallic biomaterials due to their excellent resistance to both...

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Bibliographic Details
Published in:Journal of materials research 2021-10, Vol.36 (19), p.3746-3760
Main Authors: Acharya, Srijan, Soni, Rishabh, Suwas, Satyam, Chatterjee, Kaushik
Format: Article
Language:English
Subjects:
Applied and Technical Physics
Biomaterials
Biomedical materials
Chemistry and Materials Science
Chromium
Cobalt base alloys
Corrosion fatigue
Corrosion resistance
Corrosive wear
Inorganic Chemistry
Invited Feature Paper-Review
Manufacturing
Materials Engineering
Materials research
Materials Science
Nanotechnology
Near net shaping
Process parameters
Surgical implants
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Summary:Metal additive manufacturing processes offer unique opportunities for the biomedical industry owing to their ability to produce custom-designed implants with near-net shape and intricate geometry. Co–Cr alloys are among the most popular metallic biomaterials due to their excellent resistance to both corrosion and wear. Several studies have been reported in recent years on studying the processing-structure–property relationships in additively manufactured Co–Cr alloys. However, there is a significant gap in knowledge of critical issues such as the microstructural features and properties of additively manufactured parts as well as the role of the processing parameters and post-manufacturing treatments. The performance of the additively manufactured Co–Cr alloys for biomedical applications such as fatigue, wear, corrosion, and the biological response is poorly characterized as yet. This article presents an overview of the existing literature available on additively manufactured Co–Cr alloys and identifies challenges and opportunities for their use in biomedical implants. Graphic abstract
ISSN:0884-2914
2044-5326
DOI:10.1557/s43578-021-00244-z