{"id":5741,"date":"2025-08-19T09:43:01","date_gmt":"2025-08-19T14:43:01","guid":{"rendered":"https:\/\/cqfa.quebec\/?p=5741"},"modified":"2025-08-19T09:45:05","modified_gmt":"2025-08-19T14:45:05","slug":"molybdenum-8wt-rhenium-alloy-processed-by-laser-powder-bed-fusion-from-powder-production-to-mechanical-testing-at-elevated-temperatures","status":"publish","type":"post","link":"https:\/\/cqfa.quebec\/en\/molybdenum-8wt-rhenium-alloy-processed-by-laser-powder-bed-fusion-from-powder-production-to-mechanical-testing-at-elevated-temperatures\/","title":{"rendered":"Molybdenum 8wt% rhenium alloy processed by laser powder bed fusion: From powder production to mechanical testing at elevated temperatures"},"content":{"rendered":"<p><em>Leclercq, A.; Czech, A.; Mouret, T.; Lis, M.; Wrona, A.; Brailovski, V. (2025<\/em>). <em>Molybdenum 8wt% rhenium alloy processed by laser powder bed fusion: From powder production to mechanical testing at elevated temperatures. International Journal of Refractory Metals and Hard Materials, vol. 132, november 2025, 107266. <\/em><\/p>\n<p>&nbsp;<\/p>\n<p>Molybdenum is highly valued in industry because of its unique properties, especially at high temperatures.\u00a0Additive manufacturing technologies, particularly laser\u00a0powder bed fusion\u00a0(LPBF), are becoming increasingly popular for producing complex shapes at a lower cost as compared to the conventional forming processes. However, printing molybdenum with LPBF presents challenges, especially caused by its hot\u00a0cracking susceptibility. Several approaches have been explored to address this issue, including alloying molybdenum with other elements, which has proven effective in enhancing the printability and minimizing the occurrence of cracking, particularly with the addition of\u00a0rhenium. In this study, a combination of mechanical blending of molybdenum powder and a\u00a0rhenium\u00a0precursor, followed by the reduction of the precursor and plasma spheroidization, was used to produce spherical 30\u201355\u00a0\u03bcm molybdenum\u2011rhenium (8\u00a0wt%) powders with rheological properties suitable for LPBF. Compared to pure molybdenum, the use of the alloyed powder led to an increase in the crack-free printed density, from 97 to 98.5\u00a0%, and in the\u00a0compressive strength, from 240 to 340\u00a0MPa, at 600\u00a0\u00b0C and from 150 to 190\u00a0MPa at 1000\u00a0\u00b0C, at the expense of a\u00a0\u223c\u00a05\u00a0% reduction in the\u00a0compression strain. To demonstrate the potential of printing complex geometries using the developed powders, complex geometry artifacts containing 0.25\u00a0mm-thin letters, wide dense sections and auto-supported 50\u00a0%-density 0.7\u00a0mm-thin strut diamond lattice structures were successfully printed.<\/p>\n<p>&nbsp;<\/p>\n<p class=\"link-btn-style btn-yellow\"><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0263436825002318\" target=\"_blank\" rel=\"noopener\">Read the publication<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Leclercq, A.; Czech, A.; Mouret, T.; Lis, M.; Wrona, A.; Brailovski, V. (2025). Molybdenum 8wt% rhenium alloy processed by laser powder bed fusion: From powder production to mechanical testing at [&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-5741","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>Molybdenum 8wt% rhenium alloy processed by laser powder bed fusion: From powder production to mechanical testing at elevated temperatures - 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\/molybdenum-8wt-rhenium-alloy-processed-by-laser-powder-bed-fusion-from-powder-production-to-mechanical-testing-at-elevated-temperatures\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Molybdenum 8wt% rhenium alloy processed by laser powder bed fusion: From powder production to mechanical testing at elevated temperatures - CQFA - Carrefour qu\u00e9b\u00e9cois de la fabrication additive\" \/>\n<meta property=\"og:description\" content=\"Leclercq, A.; Czech, A.; Mouret, T.; Lis, M.; Wrona, A.; Brailovski, V. 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Molybdenum 8wt% rhenium alloy processed by laser powder bed fusion: From powder production to mechanical testing at [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cqfa.quebec\/en\/molybdenum-8wt-rhenium-alloy-processed-by-laser-powder-bed-fusion-from-powder-production-to-mechanical-testing-at-elevated-temperatures\/\" \/>\n<meta property=\"og:site_name\" content=\"CQFA - Carrefour qu\u00e9b\u00e9cois de la fabrication additive\" \/>\n<meta property=\"article:published_time\" content=\"2025-08-19T14:43:01+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-19T14:45:05+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\/molybdenum-8wt-rhenium-alloy-processed-by-laser-powder-bed-fusion-from-powder-production-to-mechanical-testing-at-elevated-temperatures\/\",\"url\":\"https:\/\/cqfa.quebec\/en\/molybdenum-8wt-rhenium-alloy-processed-by-laser-powder-bed-fusion-from-powder-production-to-mechanical-testing-at-elevated-temperatures\/\",\"name\":\"Molybdenum 8wt% rhenium alloy processed by laser powder bed fusion: From powder production to mechanical testing at elevated temperatures - 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