铸造技术2025，Vol.46Issue(9)：873-881,9.DOI:10.16410/j.issn1000-8365.2025.5088
钛基复合材料增强相分布构型对其力学性能的影响研究
Influence of the Reinforcement Distribution Configurations on the Mechanical Properties of Titanium Matrix Composite
摘要
Abstract
The design of microstructural configurations in titanium-based composites profoundly influences their mechanical properties.Nevertheless,constrained by disparities in fabrication methods for composites with distinct configurations,comparative studies on composites featuring various configurations remain scarce.Moreover,the strengthening and toughening mechanisms underlying different configurations require more in-depth clarification.Different precursor systems were employed to fabricate(TiC+Ti5Si3)/Ti composites with nearly uniform(using Ti3SiC2+Si precursors)and non-uniform(using Si+graphite precursors)reinforcement phase distributions through identical processing.Microstructural analysis via XRD,SEM and EDS reveals the formation mechanisms of these configurations.Compression tests show that the uniformly distributed composite exhibits greater strength,whereas the non-uniform variant demonstrates better plasticity when these composites have the same content and scale of reinforcements.This work systematically elucidates the strengthening mechanisms in uniform systems and toughening mechanisms in heterogeneous systems,providing insights for mechanical property optimization via spatial control of reinforcements.关键词
钛基复合材料/微观组织构型/TiC颗粒/粉末冶金/强韧化机制Key words
titanium matrix composites/microstructure configurations/TiC particles/powder metallurgy/strengthening and toughening mechanisms分类
矿业与冶金引用本文复制引用
黄孝余,刘川,董路,李凯迪,杨舜..钛基复合材料增强相分布构型对其力学性能的影响研究[J].铸造技术,2025,46(9):873-881,9.基金项目
重庆市技术创新与应用发展专项重点项目(CSTB2022TIAD-KPX0032) （CSTB2022TIAD-KPX0032）
