{"id":6557,"date":"2026-06-29T15:04:20","date_gmt":"2026-06-29T13:04:20","guid":{"rendered":"https:\/\/www.cnrs-imn.fr\/event\/hdr-defense-by-emmanuel-bertrand-id2m\/"},"modified":"2026-06-29T15:06:17","modified_gmt":"2026-06-29T13:06:17","slug":"hdr-defense-by-emmanuel-bertrand-id2m","status":"publish","type":"tribe_events","link":"https:\/\/www.cnrs-imn.fr\/en\/event\/hdr-defense-by-emmanuel-bertrand-id2m\/","title":{"rendered":"HDR Defense by Emmanuel BERTRAND (ID2M)"},"content":{"rendered":"

\"\"<\/p>\n

\n
Studies of the relationships between process, microstructure, and mechanical properties of metals.
\nRole of deformation mechanisms and wire arc additive manufacturing.<\/h5>\n

Abstract<\/strong>: Among the broad family of metal alloys, some are subject to specific deformation mechanisms: stress-induced martensitic transformation, reorientation twinning, plastic twinning, etc. These mechanisms give rise to very specific mechanical behaviors: shape memory effect, superelasticity, and TRIP- and\/or TWIP-effect alloys.<\/p>\n

To gain a better understanding of these often concurrent mechanisms, my approach involved studying the sequences of deformation mechanisms in \u03b2-metastable titanium alloys. I then turned my attention to the relationships between an alloy\u2019s chemical composition and its deformation mechanisms before expanding my research to other martensitic-transforming alloys. <\/p>\n

Another part of my work involves developing solutions to problems caused by the behavior of metal alloys in additive manufacturing. Depending on the metals in question, the issues vary: a decrease in mechanical properties, anisotropy resulting from solidification behavior, heat accumulation, and so on. <\/p>\n

Original solutions are proposed at the intersection of materials science and process engineering. This approach enables a detailed understanding of the relationships between process, microstructure, and metal properties, and helps overcome scientific and technological barriers. <\/p>\n

Keywords<\/strong>: titanium alloys; wire arc additive manufacturing; metallurgy; microstructure<\/p>\n

\n
Studies of the relationships between process, microstructure, and mechanical properties of metals.
\n: The role of deformation mechanisms and wire arc additive manufacturing<\/h5>\n

Abstract<\/strong>: Among the large family of metal alloys, some are subject to specific deformation mechanisms: stress-induced martensitic transformation, reorientation twinning, plastic twinning… These mechanisms give rise to very specific mechanical behaviors: shape memory effect, superelasticity, and TRIP and\/or TWIP alloys. <\/p>\n

To gain a better understanding of these often concurrent mechanisms, my approach involved studying the sequence of deformation mechanisms in metastable \u03b2-titanium alloys. I then focused on the relationships between an alloy\u2019s chemical composition and its deformation mechanisms before expanding my analysis to other alloys undergoing martensitic transformation. <\/p>\n

Another part of my work involves developing solutions to problems caused by the behavior of metal alloys in additive manufacturing. Depending on the metals in question, the issues vary: reduced mechanical properties, anisotropy resulting from solidification behavior, heat accumulation, etc. <\/p>\n

Original solutions are proposed by operating at the interface between materials science and process engineering. This approach enables a detailed understanding of the relationships between process, microstructure, and the properties of metals, and helps overcome scientific and technological barriers. <\/p>\n

Keywords<\/strong>: titanium alloys; wire arc additive manufacturing; metallurgy; microstructure<\/p>\n

\n
\"\"<\/h5>\n","protected":false},"excerpt":{"rendered":"

Studies of the relationships between process, microstructure, and mechanical properties […]<\/p>\n","protected":false},"author":4,"featured_media":4532,"template":"","meta":{"_tribe_events_status":"","_tribe_events_status_reason":"","footnotes":""},"tags":[],"tribe_events_cat":[],"class_list":["post-6557","tribe_events","type-tribe_events","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\nHDR Defense by Emmanuel BERTRAND (ID2M) - IMN<\/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:\/\/www.cnrs-imn.fr\/en\/event\/hdr-defense-by-emmanuel-bertrand-id2m\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HDR Defense by Emmanuel BERTRAND (ID2M) - IMN\" \/>\n<meta property=\"og:description\" content=\"Studies of the relationships between process, microstructure, and mechanical properties [...]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.cnrs-imn.fr\/en\/event\/hdr-defense-by-emmanuel-bertrand-id2m\/\" \/>\n<meta property=\"og:site_name\" content=\"IMN\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-29T13:06:17+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.cnrs-imn.fr\/wp-content\/uploads\/2026\/02\/bertrand_emmanuel.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"150\" \/>\n\t<meta property=\"og:image:height\" content=\"150\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.cnrs-imn.fr\\\/en\\\/event\\\/hdr-defense-by-emmanuel-bertrand-id2m\\\/\",\"url\":\"https:\\\/\\\/www.cnrs-imn.fr\\\/en\\\/event\\\/hdr-defense-by-emmanuel-bertrand-id2m\\\/\",\"name\":\"HDR Defense by Emmanuel BERTRAND (ID2M) - 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