Overcoming strength-ductility trade-off in pelleted heterostructure titanium matrix composites by optimizing pellet size
文献类型：期刊论文
| 作者 | Liu, Lei1,2; Li, Shufeng1; Li, Shaolong1; Liu, Huiying1; Wang, Shaodi1; Hui, Dongxu1; Zhang, Xin1; Kariya, Shota3; Umeda, Junko3; Kondoh, Katsuyoshi3 |
| 刊名 | MATERIALS CHARACTERIZATION
 |
| 出版日期 | 2025-04-01 |
| 卷号 | 222页码:12 |
| 关键词 | Powder metallurgy Titanium matrix composites (TMCs) Pelleted heterostructure Mechanical properties Fracture mechanism |
| ISSN号 | 1044-5803 |
| DOI | 10.1016/j.matchar.2025.114803 |
| 通讯作者 | Li, Shufeng(shufengli@xaut.edu.cn) ; Xiao, Bolv(blxiao@imr.ac.cn) |
| 英文摘要 | Precisely controlling the spatial distribution of reinforcements and introducing heterogeneous grain structures are effective strategies for simultaneously enhancing the strength and ductility of titanium matrix composites (TMCs). However, achieving customized microstructure design in TMCs remains challenging. In this study, pelleted heterostructure Ti64-TiBw composites with varying pellet sizes (D50, D75, D150, and D250) were designed to systematically investigate the effect of pellet size on mechanical properties and deformation behavior. The results show that reducing pellet size significantly improves elongation, reaching a maximum of 11.5 %-an improvement of 219 % over homo-structure composites-without sacrificing strength. This improvement is attributed to increased matrix grain deformation at the crack tip in pelleted heterostructure Ti64TiBw composites with smaller pellet sizes, coupled with enhanced strain redistribution between coarse- and finegrained regions, which effectively inhibits crack propagation. This study offers a new pathway for precise microstructure design of TMCs, laying the foundation to overcome the strength-ductility trade-off and expand applications in high-performance metal matrix composites. |
| 资助项目 | National Key Research and Develop-ment Program of China[2021YFB3701203] ; National Natural Science Foundation of China[52201165] ; National Natural Science Foundation of China[52471162] ; National Natural Science Foundation of China[52321001] ; National Natural Science Foundation of China[U2441261] ; National Natural Science Foundation of China[52322106] ; National Natural Science Foundation of China[52192595] ; National Natural Science Foundation of China[51931009] ; National Natural Science Foundation of China[52120105001] ; China Postdoctoral Science Foundation[2024M763340] ; Shaanxi Innovative Research Team for Key Science and Technology[2023-CX-TD-46] ; Xi'an University of Tech-nology Doctoral Dissertation Innovation Fund[310-252072101] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001424172700001 |
| 出版者 | ELSEVIER SCIENCE INC |
| 资助机构 | National Key Research and Develop-ment Program of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Shaanxi Innovative Research Team for Key Science and Technology ; Xi'an University of Tech-nology Doctoral Dissertation Innovation Fund |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Li, Shufeng; Xiao, Bolv |
| 作者单位 | 1.Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Shaanxi, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Osaka Univ, Joining & Welding Res Inst, Osaka, Ibaraki 5670047, Japan 4.Mat Proc Inst, Eston Rd, Middlesbrough TS6 6US, England |
| 推荐引用方式 GB/T 7714 | Liu, Lei,Li, Shufeng,Li, Shaolong,et al. Overcoming strength-ductility trade-off in pelleted heterostructure titanium matrix composites by optimizing pellet size[J]. MATERIALS CHARACTERIZATION,2025,222:12. |
| APA | Liu, Lei.,Li, Shufeng.,Li, Shaolong.,Liu, Huiying.,Wang, Shaodi.,...&Ma, Zongyi.(2025).Overcoming strength-ductility trade-off in pelleted heterostructure titanium matrix composites by optimizing pellet size.MATERIALS CHARACTERIZATION,222,12. |
| MLA | Liu, Lei,et al."Overcoming strength-ductility trade-off in pelleted heterostructure titanium matrix composites by optimizing pellet size".MATERIALS CHARACTERIZATION 222(2025):12. |
入库方式： OAI收割
来源：金属研究所
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