Laser deposition-additive manufacturing of TiB-Ti composites with novel three-dimensional quasi-continuous network microstructure: Effects on strengthening and toughening

被引:166
作者
Hu, Yingbin [1 ]
Cong, Weilong [1 ]
Wang, Xinlin [1 ,2 ]
Li, Yuanchen [1 ,3 ]
Ning, Fuda [1 ]
Wang, Hui [1 ]
机构
[1] Texas Tech Univ, Dept Ind Mfg & Syst Engn, Lubbock, TX 79409 USA
[2] Dalian Univ Technol, Sch Mech Engn, Dalian 116024, Liaoning, Peoples R China
[3] Tianjin Univ, Key Lab Mech Theory & Equipment Design, Minist Educ, Tianjin 300072, Peoples R China
关键词
Metal-matrix composites (MMCs); Mechanical properties; Analytical modeling; Powder processing; Laser deposition-additive manufacturing; METAL-MATRIX NANOCOMPOSITES; TITANIUM; PARTICLE; MODELS; PERFORMANCE; MORPHOLOGY; BEHAVIOR; DESIGN; ALLOYS; FILMS;
D O I
10.1016/j.compositesb.2017.09.019
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Although TiB reinforced titanium matrix (TiB-Ti) composites exhibit superior wear resistance and strength, they still demonstrate severe problems resulted from lowered toughness and ductility, as compared with titanium and its alloys. To reduce these problems, this paper tailors a three-dimensional quasi-continuous network (3DQCN) microstructure within TiB-Ti composites by in-situ laser deposition-additive manufacturing process. Results show that the laser power has great impacts on the formation of 3DQCN microstructure and the 3DQCN microstructure is beneficial to both strengthening and toughening effects on TiB-Ti composites. To have a quantitative understanding of strengthening effects, this paper, for the first time, has modeled the yield strength of TiB-Ti composites with 3DQCN microstructure. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码:91 / 100
页数:10
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