{"id":5725,"date":"2025-08-19T09:08:56","date_gmt":"2025-08-19T14:08:56","guid":{"rendered":"https:\/\/cqfa.quebec\/?p=5725"},"modified":"2025-08-19T09:11:30","modified_gmt":"2025-08-19T14:11:30","slug":"two-month-in-vitro-degradation-of-3d-printed-biodegradable-femnc-alloys-for-biomedical-applications","status":"publish","type":"post","link":"https:\/\/cqfa.quebec\/en\/two-month-in-vitro-degradation-of-3d-printed-biodegradable-femnc-alloys-for-biomedical-applications\/","title":{"rendered":"Two-Month In Vitro Degradation of 3D-Printed Biodegradable FeMnC Alloys for Biomedical Applications"},"content":{"rendered":"<p><em>Cherqaoui, A.; Nguyen Cao, Q.; Paternoster, C.; G\u00e9linas, S.; Bieda, M.; Jarzebska, A.; Blais, C.; Mantovani, D.<\/em> <em>(2025).<\/em><em> Two-Month In Vitro Degradation of 3D-Printed Biodegradable FeMnC Alloys for Biomedical Applications. Degradation Behavior of Biodegradable Metals for Medical Applications, vol. 77, mars 2025, 4414-4429. <\/em><\/p>\n<p>&nbsp;<\/p>\n<p>Over the last decade, Fe-Mn-based bioresorbable implants have attracted significant interest due to their outstanding mechanical properties, including ductility and strength, and their ability to degrade over medium-to-long healing periods, eliminating the need for secondary surgeries for implant removal. However, their slow degradation under physiological conditions limits their practical use, especially for short-term degradable implants. Additive manufacturing facilitates rapid production with tailored compositions, offering advantages over traditional casting methods. Yet, the structure, the microstructure, the degradation behavior, and the mechanical properties are known to be impacted by the fabrication methods. In this context, this study investigates the degradation behavior of 3D-printed FeMnC alloys produced via laser powder bed fusion using volumetric energy densities from 75\u00a0J\/mm<sup>3<\/sup>\u00a0to 87\u00a0J\/mm<sup>3<\/sup>. Microstructure and degradation rate relationships were explored through microstructural characterization (SEM, XRD, EBSD) and static immersion tests in modified Hanks&#8217; solution over 60\u00a0days. XRD confirmed a fully austenitic microstructure in all conditions, while SEM and EBSD revealed refined structures along the building direction. The alloy printed at 87\u00a0J\/mm<sup>3<\/sup>\u00a0exhibited the lowest degradation rate for both immersion periods, with values near 0.04\u00a0mm\/year after 14\u00a0days and 0.03\u00a0mm\/year after 60\u00a0days.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p class=\"link-btn-style btn-yellow\"><a href=\"https:\/\/link.springer.com\/article\/10.1007\/s11837-025-07274-6\" target=\"_blank\" rel=\"noopener\">Read the publication<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cherqaoui, A.; Nguyen Cao, Q.; Paternoster, C.; G\u00e9linas, S.; Bieda, M.; Jarzebska, A.; Blais, C.; Mantovani, D. (2025). Two-Month In Vitro Degradation of 3D-Printed Biodegradable FeMnC Alloys for Biomedical Applications. [&hellip;]<\/p>\n","protected":false},"author":80,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"categories":[43],"tags":[],"class_list":["post-5725","post","type-post","status-publish","format-standard","hentry","category-publications-academiques-quebecoises"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Two-Month In Vitro Degradation of 3D-Printed Biodegradable FeMnC Alloys for Biomedical Applications - CQFA - Carrefour qu\u00e9b\u00e9cois de la fabrication additive<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cqfa.quebec\/en\/two-month-in-vitro-degradation-of-3d-printed-biodegradable-femnc-alloys-for-biomedical-applications\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Two-Month In Vitro Degradation of 3D-Printed Biodegradable FeMnC Alloys for Biomedical Applications - CQFA - Carrefour qu\u00e9b\u00e9cois de la fabrication additive\" \/>\n<meta property=\"og:description\" content=\"Cherqaoui, A.; Nguyen Cao, Q.; Paternoster, C.; G\u00e9linas, S.; Bieda, M.; Jarzebska, A.; Blais, C.; Mantovani, D. (2025). Two-Month In Vitro Degradation of 3D-Printed Biodegradable FeMnC Alloys for Biomedical Applications. 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