Functionally graded structure of a nitride-strengthened Mg_(2)Si-based hybrid composite

作     者：Jeongho Yang Woongbeom Heogh Hogi Ju Sukhyun Kang Tae-Sik Jang Hyun-Do Jung Mohammad Jahazi Seung Chul Han Seong Je Park Hyoung Seop Kim Susmita Bose Amit Bandyopadhyay Martin Byung-Guk Jun Young Won Kim Dae-kyeom Kim Rigoberto CAdvincula Clodualdo Aranas Jr Sang Hoon Kim 

作者机构：School of Mechanical EngineeringPusan National UniversityBusan 46241Republic of Korea Department of Mechanical Design EngineeringHanyang UniversitySeoul 04763Republic of Korea Process Research 3 TeamLG Display Co.Ltd.PajuGyeonggi-do 10845Republic of Korea Department of Materials Science and EngineeringChosun UniversityGwangju 61452Republic of Korea Institute of Well-Aging Medicare&Chosun University LAMP CenterChosun UniversityGwangju 61452Republic of Korea Division of Materials Science and EngineeringHanyang UniversitySeoul 04763Republic of Korea Department of Mechanical EngineeringÉcole de Technologie SupérieureMontrealQuebec H3C 1K3Canada Material&Component Convergence R&D CenterKorea Construction Equipment Technology InstituteGunsanJeollabuk-do 54002Republic of Korea School of Mechanical and Aerospace EngineeringNanyang Technological UniversitySingapore 639798Singapore Graduate Institute of Ferrous&Eco Materials TechnologyPohang University of Science and TechnologyPohangGyeongsangbuk-do 37673Republic of Korea Advanced Institute for Materials ResearchTohoku UniversitySendai 980-8577Japan Institute for Convergence Research and Education in Advanced TechnologyYonsei UniversitySeoul 03722Republic of Korea School of Mechanical and Materials EngineeringWashington State UniversityPullmanWashington 99164USA School of Mechanical EngineeringPurdue UniversityWest LafayetteIndiana 47907USA Research Institute of Advanced Manufacturing TechnologyKorea Institute of Industrial TechnologyIncheon 21999Republic of Korea Department of Macromolecular Science and EngineeringCase Western Reserve UniversityClevelandOhio 44106USA Department of Chemical and Biomolecular Engineering and Joint Institute for Advanced MaterialsUniversity of TennesseeKnoxvilleTennessee 37996USA Center for Nanophase Materials and SciencesOak Ridge National LaboratoryOak RidgeTennessee 37830USA Department of Mechanical EngineeringUniversity of New BrunswickFrederictonNew Brunswick E3B 5A3Canada Power Generation LaboratoryKorea Electric Power Research InstituteDaejeon 34056Republic of Korea 

出 版 物：《Journal of Magnesium and Alloys》 (镁合金学报（英文）)

年 卷 期：2024年第12卷第3期

页      面：1239-1256页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：supported by the Learning & Academic Research Institution for Master’s and Ph.D. Students and Postdocs (LAMP) Program of the National Research Foundation of Korea (NRF) grant funded by the Ministry of Education (No. RS-2023-00285353) supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (NRF-2021R1A2C3006662, NRF-2022R1A5A1030054, and 2021R1A2C1091301) the support from Natural Sciences and Engineering Research Council of Canada (NSERC) Canada Foundation for Innovation (CFI) Atlantic Canada Opportunities Agency (ACOA) the New Brunswick Innovation Foundation (NBIF) 

主　　题：Laser powder bed fusion Mg_(2)Si-SiC/nitride hybrid composite Both the thermal diffusion-and chemical reaction-based metallurgy Functionally graded structure Compositional gradient Wear resistance. 

摘      要：The ex-situ incorporation of the secondary SiC reinforcement,along with the in-situ incorporation of the tertiary and quaternary Mg_(3)N_(2) and Si_(3)N_(4) phases,in the primary matrix of Mg_(2)Si is employed in order to provide ultimate wear resistance based on the laser-irradiation-induced inclusion of N_(2) gas during laser powder bed *** is substantialized based on both the thermal diffusion-and chemical reactionbased metallurgy of the Mg_(2)Si–SiC/nitride hybrid *** study also proposes a functional platform for systematically modulating a functionally graded structure and modeling build-direction-dependent architectonics during additive *** strategy enables the development of a compositional gradient from the center to the edge of each melt pool of the Mg_(2)Si–SiC/nitride hybrid ***,the coefficient of friction of the hybrid composite exhibits a 309.3%decrease to–1.67 compared to–0.54 for the conventional nonreinforced Mg_(2)Si structure,while the tensile strength exhibits a 171.3%increase to 831.5 MPa compared to 485.3 MPa for the conventional *** outstanding mechanical behavior is due to the(1)the complementary and synergistic reinforcement effects of the SiC and nitride compounds,each of which possesses an intrinsically high hardness,and(2)the strong adhesion of these compounds to the Mg_(2)Si matrix despite their small sizes and low concentrations.