{"id":4212,"date":"2024-04-04T15:17:07","date_gmt":"2024-04-04T19:17:07","guid":{"rendered":"https:\/\/spraysensors-cn.tecnar.com\/?p=4212"},"modified":"2024-04-04T15:17:07","modified_gmt":"2024-04-04T19:17:07","slug":"role-of-nitrogen-and-helium-gases-on-microstructure-and-anisotropic-mechanical-properties-of-cold-sprayed-scalmalloy-deposits","status":"publish","type":"post","link":"https:\/\/spraysensors-cn.tecnar.com\/en\/role-of-nitrogen-and-helium-gases-on-microstructure-and-anisotropic-mechanical-properties-of-cold-sprayed-scalmalloy-deposits\/","title":{"rendered":"Role Of Nitrogen And Helium Gases On Microstructure And Anisotropic Mechanical Properties Of Cold-Sprayed Scalmalloy Deposits"},"content":{"rendered":"<p>Aluminum alloys (Al) produced by fusion-based additive manufacturing techniques exhibit limited strength due to undesirable grain growth, porosity, and thermal gradient. To address these limitations, Scalmalloy (Al\u2013Mg4.6-Sc0.72-Zr0.3 wt%) deposits of 5 mm thickness using helium and nitrogen gases were manufactured using a solid-state cold spray (CS) deposition. The microstructure of these deposits revealed a bimodal distribution of coarse and fine grains in the splat interior and jetting region, respectively, characterized by a higher degree of plastic deformation in the He-deposit. These bimodal grains resulted in a nanohardness of 1.2 GPa in the jetting region, 20% higher than that in the interior. The cumulative effect of these microstructural features resulted in a microhardness of 149 HV in the He-deposit, 1.1 times compared to that in the N2-deposit. The increased hardness is translated to a yield strength of 383 MPa and ultimate strength of 487 MPa in the He-deposit, 1.17 and 1.08 times of N2-deposit, respectively, estimated by Profilometry-based indentation plastometry (PIP). Across the hierarchical layers, profilometry-based indentation plastometry captured a consistent pile-up difference of \u223c2 \u03bcm in the He-deposit and \u223c3 \u03bcm in the N2-deposit on the plane perpendicular to build plane, a manifestation of in-plane anisotropy. This study advances the microstructural understanding and its relationship with observed mechanical properties, deformation behavior, and anisotropic response in high-strength Scalmalloy CS deposits.<\/p>\n<p><a class=\"btn-tec black\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S2238785424007300\" target=\"_blank\" rel=\"noopener\">Link to publication<\/a><\/p>\n<p>Key words: Scalmalloy, High-strength aluminum alloy, Cold spray, CSAM, Carrier gasIndentation plastometry, Anisotropy<\/p>\n<p><em><small>Originally published at Journal of Materials Research and Technology (Volume 30, May\u2013June 2024, Pages 1341-1353)<br \/>\nBy Anil Lama, R. Sarvesha, Denny John, Tanaji Paul, Abhijith Sukumaran, Arvind Agarwal<\/small><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Aluminum alloys (Al) produced by fusion-based additive manufacturing techniques exhibit limited strength due to undesirable grain growth, porosity, and thermal [&#8230;]<\/p>\n<p><a class=\"btn btn-secondary understrap-read-more-link\" href=\"https:\/\/spraysensors-cn.tecnar.com\/en\/role-of-nitrogen-and-helium-gases-on-microstructure-and-anisotropic-mechanical-properties-of-cold-sprayed-scalmalloy-deposits\/\">Read More&#8230;<\/a><\/p>\n","protected":false},"author":20,"featured_media":4213,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[42],"tags":[],"class_list":["post-4212","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dpv-evolution-2"],"acf":[],"yoast_head":"<!-- This site is optimized with 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