{"id":5936,"date":"2026-01-05T11:02:14","date_gmt":"2026-01-05T16:02:14","guid":{"rendered":"https:\/\/cqfa.quebec\/?p=5936"},"modified":"2026-01-05T11:04:36","modified_gmt":"2026-01-05T16:04:36","slug":"effect-of-mn-on-microstructural-characteristics-and-mechanical-behavior-of-alsi10mg-alloys-produced-by-laser-powder-bed-fusion","status":"publish","type":"post","link":"https:\/\/cqfa.quebec\/en\/effect-of-mn-on-microstructural-characteristics-and-mechanical-behavior-of-alsi10mg-alloys-produced-by-laser-powder-bed-fusion\/","title":{"rendered":"Effect of Mn on microstructural characteristics and mechanical behavior of AlSi10Mg alloys produced by laser powder bed fusion"},"content":{"rendered":"<p><em>Pourkhorshid, E.; Rometsch, P.; Bois-Brochu, A.; Taylor, A.; K.W.Marceau, R.; Grant Chen, X. (2025). Effect of Mn on microstructural characteristics and mechanical behavior of AlSi10Mg alloys produced by laser powder bed fusion. Additive Manufacturing, vol. 110, 2025, 104923. <\/em><\/p>\n<p>&nbsp;<\/p>\n<p>This study investigated the effect of Mn modification on the microstructure and mechanical properties of AlSi10Mg alloys produced by laser powder bed fusion (L-PBF). The results revealed that the addition of 0.5\u202fwt% Mn considerably improved the strength while maintaining a similar elongation level, exhibiting yield strength increases of 17\u202f%, 30\u202f% and 29\u202f% in the as-manufactured (F), directly aged (T5), and solution treated plus aged (T6) conditions, respectively. In the F and T5 conditions, the Mn-modification resulted in the formation of \u03b1-Al(Mn,Fe)Si intermetallic particles inside the Si-rich network, which reinforced the network and improved the strength. After the T6 heat treatment, the Si-rich network completely disappeared in both alloys, but the formation of \u03b1-Al(Mn,Fe)Si dispersoids provided an extra strengthening contribution in the Mn-modified alloy. Most importantly, transmission electron microscopy and atom probe tomography revealed that the addition of Mn (and some extra Mg) stimulated the precipitation of a large number of Si-rich nanoparticles and MgSi-based precipitates, especially in the T5 condition. Among all the heat treatment and alloy conditions investigated, the Mn-modified alloy in the T5 condition achieved the highest strengths (yield strength: 386\u202fMPa, ultimate tensile strength: 532\u202fMPa). This research highlights the potential for improving the mechanical properties of AlSi10Mg alloys produced by L-PBF via a cost-effective modification of the chemical composition and provides a deeper understanding of the role of Mn in such alloys.<\/p>\n<p>&nbsp;<\/p>\n<p class=\"link-btn-style btn-yellow\"><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S2214860425002878\" target=\"_blank\" rel=\"noopener\">Read the publication<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pourkhorshid, E.; Rometsch, P.; Bois-Brochu, A.; Taylor, A.; K.W.Marceau, R.; Grant Chen, X. (2025). Effect of Mn on microstructural characteristics and mechanical behavior of AlSi10Mg alloys produced by laser powder [&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-5936","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>Effect of Mn on microstructural characteristics and mechanical behavior of AlSi10Mg alloys produced by laser powder bed fusion - 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\/effect-of-mn-on-microstructural-characteristics-and-mechanical-behavior-of-alsi10mg-alloys-produced-by-laser-powder-bed-fusion\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Effect of Mn on microstructural characteristics and mechanical behavior of AlSi10Mg alloys produced by laser powder bed fusion - CQFA - Carrefour qu\u00e9b\u00e9cois de la fabrication additive\" \/>\n<meta property=\"og:description\" content=\"Pourkhorshid, E.; Rometsch, P.; Bois-Brochu, A.; Taylor, A.; K.W.Marceau, R.; Grant Chen, X. (2025). Effect of Mn on microstructural characteristics and mechanical behavior of AlSi10Mg alloys produced by laser powder [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cqfa.quebec\/en\/effect-of-mn-on-microstructural-characteristics-and-mechanical-behavior-of-alsi10mg-alloys-produced-by-laser-powder-bed-fusion\/\" \/>\n<meta property=\"og:site_name\" content=\"CQFA - Carrefour qu\u00e9b\u00e9cois de la fabrication additive\" \/>\n<meta property=\"article:published_time\" content=\"2026-01-05T16:02:14+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-05T16:04:36+00:00\" \/>\n<meta name=\"author\" content=\"f.charreteur\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"f.charreteur\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/cqfa.quebec\/en\/effect-of-mn-on-microstructural-characteristics-and-mechanical-behavior-of-alsi10mg-alloys-produced-by-laser-powder-bed-fusion\/\",\"url\":\"https:\/\/cqfa.quebec\/en\/effect-of-mn-on-microstructural-characteristics-and-mechanical-behavior-of-alsi10mg-alloys-produced-by-laser-powder-bed-fusion\/\",\"name\":\"Effect of Mn on microstructural characteristics and mechanical behavior of AlSi10Mg alloys produced by laser powder bed fusion - CQFA - Carrefour qu\u00e9b\u00e9cois de la fabrication additive\",\"isPartOf\":{\"@id\":\"https:\/\/cqfa.quebec\/en\/#website\"},\"datePublished\":\"2026-01-05T16:02:14+00:00\",\"dateModified\":\"2026-01-05T16:04:36+00:00\",\"author\":{\"@id\":\"https:\/\/cqfa.quebec\/en\/#\/schema\/person\/1471d3e52124b5db8e382db2fe9fd129\"},\"breadcrumb\":{\"@id\":\"https:\/\/cqfa.quebec\/en\/effect-of-mn-on-microstructural-characteristics-and-mechanical-behavior-of-alsi10mg-alloys-produced-by-laser-powder-bed-fusion\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/cqfa.quebec\/en\/effect-of-mn-on-microstructural-characteristics-and-mechanical-behavior-of-alsi10mg-alloys-produced-by-laser-powder-bed-fusion\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/cqfa.quebec\/en\/effect-of-mn-on-microstructural-characteristics-and-mechanical-behavior-of-alsi10mg-alloys-produced-by-laser-powder-bed-fusion\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\/\/cqfa.quebec\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Effect of Mn on microstructural characteristics and mechanical behavior of AlSi10Mg alloys produced by laser powder bed fusion\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/cqfa.quebec\/en\/#website\",\"url\":\"https:\/\/cqfa.quebec\/en\/\",\"name\":\"CQFA - Carrefour qu\u00e9b\u00e9cois de la fabrication additive\",\"description\":\"site du CQFA - Carrefour qu\u00e9b\u00e9cois de la fabrication additive\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/cqfa.quebec\/en\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/cqfa.quebec\/en\/#\/schema\/person\/1471d3e52124b5db8e382db2fe9fd129\",\"name\":\"f.charreteur\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/cqfa.quebec\/en\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/9363954600b2451cee337a467f183d3578e177b3c8101e36f7dfcb5adaa93ea5?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/9363954600b2451cee337a467f183d3578e177b3c8101e36f7dfcb5adaa93ea5?s=96&d=mm&r=g\",\"caption\":\"f.charreteur\"},\"url\":\"https:\/\/cqfa.quebec\/en\/author\/f-charreteur\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Effect of Mn on microstructural characteristics and mechanical behavior of AlSi10Mg alloys produced by laser powder bed fusion - CQFA - Carrefour qu\u00e9b\u00e9cois de la fabrication additive","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/cqfa.quebec\/en\/effect-of-mn-on-microstructural-characteristics-and-mechanical-behavior-of-alsi10mg-alloys-produced-by-laser-powder-bed-fusion\/","og_locale":"en_US","og_type":"article","og_title":"Effect of Mn on microstructural characteristics and mechanical behavior of AlSi10Mg alloys produced by laser powder bed fusion - CQFA - Carrefour qu\u00e9b\u00e9cois de la fabrication additive","og_description":"Pourkhorshid, E.; Rometsch, P.; Bois-Brochu, A.; Taylor, A.; K.W.Marceau, R.; Grant Chen, X. (2025). Effect of Mn on microstructural characteristics and mechanical behavior of AlSi10Mg alloys produced by laser powder [&hellip;]","og_url":"https:\/\/cqfa.quebec\/en\/effect-of-mn-on-microstructural-characteristics-and-mechanical-behavior-of-alsi10mg-alloys-produced-by-laser-powder-bed-fusion\/","og_site_name":"CQFA - Carrefour qu\u00e9b\u00e9cois de la fabrication additive","article_published_time":"2026-01-05T16:02:14+00:00","article_modified_time":"2026-01-05T16:04:36+00:00","author":"f.charreteur","twitter_card":"summary_large_image","twitter_misc":{"Written by":"f.charreteur","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/cqfa.quebec\/en\/effect-of-mn-on-microstructural-characteristics-and-mechanical-behavior-of-alsi10mg-alloys-produced-by-laser-powder-bed-fusion\/","url":"https:\/\/cqfa.quebec\/en\/effect-of-mn-on-microstructural-characteristics-and-mechanical-behavior-of-alsi10mg-alloys-produced-by-laser-powder-bed-fusion\/","name":"Effect of Mn on microstructural characteristics and mechanical behavior of AlSi10Mg alloys produced by laser powder bed fusion - CQFA - Carrefour qu\u00e9b\u00e9cois de la fabrication additive","isPartOf":{"@id":"https:\/\/cqfa.quebec\/en\/#website"},"datePublished":"2026-01-05T16:02:14+00:00","dateModified":"2026-01-05T16:04:36+00:00","author":{"@id":"https:\/\/cqfa.quebec\/en\/#\/schema\/person\/1471d3e52124b5db8e382db2fe9fd129"},"breadcrumb":{"@id":"https:\/\/cqfa.quebec\/en\/effect-of-mn-on-microstructural-characteristics-and-mechanical-behavior-of-alsi10mg-alloys-produced-by-laser-powder-bed-fusion\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/cqfa.quebec\/en\/effect-of-mn-on-microstructural-characteristics-and-mechanical-behavior-of-alsi10mg-alloys-produced-by-laser-powder-bed-fusion\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/cqfa.quebec\/en\/effect-of-mn-on-microstructural-characteristics-and-mechanical-behavior-of-alsi10mg-alloys-produced-by-laser-powder-bed-fusion\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Accueil","item":"https:\/\/cqfa.quebec\/en\/"},{"@type":"ListItem","position":2,"name":"Effect of Mn on microstructural characteristics and mechanical behavior of AlSi10Mg alloys produced by laser powder bed fusion"}]},{"@type":"WebSite","@id":"https:\/\/cqfa.quebec\/en\/#website","url":"https:\/\/cqfa.quebec\/en\/","name":"CQFA - Carrefour qu\u00e9b\u00e9cois de la fabrication additive","description":"site du CQFA - Carrefour qu\u00e9b\u00e9cois de la fabrication additive","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/cqfa.quebec\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/cqfa.quebec\/en\/#\/schema\/person\/1471d3e52124b5db8e382db2fe9fd129","name":"f.charreteur","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/cqfa.quebec\/en\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/9363954600b2451cee337a467f183d3578e177b3c8101e36f7dfcb5adaa93ea5?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/9363954600b2451cee337a467f183d3578e177b3c8101e36f7dfcb5adaa93ea5?s=96&d=mm&r=g","caption":"f.charreteur"},"url":"https:\/\/cqfa.quebec\/en\/author\/f-charreteur\/"}]}},"_links":{"self":[{"href":"https:\/\/cqfa.quebec\/en\/wp-json\/wp\/v2\/posts\/5936","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cqfa.quebec\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cqfa.quebec\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cqfa.quebec\/en\/wp-json\/wp\/v2\/users\/80"}],"replies":[{"embeddable":true,"href":"https:\/\/cqfa.quebec\/en\/wp-json\/wp\/v2\/comments?post=5936"}],"version-history":[{"count":1,"href":"https:\/\/cqfa.quebec\/en\/wp-json\/wp\/v2\/posts\/5936\/revisions"}],"predecessor-version":[{"id":5937,"href":"https:\/\/cqfa.quebec\/en\/wp-json\/wp\/v2\/posts\/5936\/revisions\/5937"}],"wp:attachment":[{"href":"https:\/\/cqfa.quebec\/en\/wp-json\/wp\/v2\/media?parent=5936"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cqfa.quebec\/en\/wp-json\/wp\/v2\/categories?post=5936"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cqfa.quebec\/en\/wp-json\/wp\/v2\/tags?post=5936"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}