Microstructure and mechanical properties of nano TiB whisker-reinforced titanium matrix composites using atomized Ti-TiB composite powder as raw materials

doi:10.1016/j.compositesb.2025.112392

IMR OpenIR

	Microstructure and mechanical properties of nano TiB whisker-reinforced titanium matrix composites using atomized Ti-TiB composite powder as raw materials
	Liu, Lei 1,2; Li, Shufeng 1; Li, Shaolong 1; Liu, Huiying 1; Wang, Shaodi 1; Hui, Dongxu 1; Zhang, Xin 1; Kariya, Shota 3; Issariyapat, Ammarueda 3; Umeda, Junko 3; Kondoh, Katsuyoshi 3; Xiao, Bolv 2; Ma, Zongyi 2
通讯作者	Li, Shufeng(shufengli@xaut.edu.cn) ; Kondoh, Katsuyoshi(kondoh.katsuyoshi.jwri@osaka-u.ac.jp) ; Xiao, Bolv(blxiao@imr.ac.cn)
	2025-06-01
发表期刊	COMPOSITES PART B-ENGINEERING
ISSN	1359-8368
卷号	298 页码:12
摘要	In situ formed TiB-reinforced titanium matrix composites (TMCs) have gained significant attention for their high specific modulus and strength. However, the high sintering temperatures required for in situ reactions and densification can cause rapid coarsening of TiB whiskers, limiting the improvements in mechanical properties. This study proposes a "low-temperature sintering + hot extrusion" method to prepare nano TiB-reinforced Ti-TiB composites. The process involves low-temperature sintering at 800 degrees C-below the HCP-Ti phase transformation temperature-followed by hot extrusion for densification. The resulting Ti-TiB composites feature TiB with diameters of approximately 123 nm. The yield strength (YS) and ultimate tensile strength (UTS) of the nano TiBreinforced Ti-TiB composites reach 632 MPa and 833 MPa, respectively, reflecting increases of 70 % and 51 % compared to microscale TiB-reinforced Ti-TiB composites, while maintaining an elongation (El) of 13.97 %. The size evolution of TiB in the composites follows a temperature-dependent progression. Below 800 degrees C, TiB remains nanoscale, while temperatures above 800 degrees C, TiB grows to the microscale. The failure mode also shifts with TiB size, from interfacial debonding at the microscale to load-bearing fracture at the nanoscale. Additionally, the refinement of matrix grains and the obstruction of dislocations by nanoscale TiB further improve mechanical properties. This work opens a new controllable and facile route for preparing nano TiB-reinforced titanium matrix composites with promising properties.
关键词	Titanium matrix composites (TMCs) Composite powders Nano TiB Mechanical properties Strengthening mechanism
资助者	National Key R & D Program of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Shaanxi Innovative Research Team for Key Science and Technology ; Xi'an Uni-versity of Technology Doctoral Dissertation Innovation Fund
DOI	10.1016/j.compositesb.2025.112392
收录类别	SCI
语种	英语
资助项目	National Key R & D Program of China[2021YFB3701203] ; National Natural Science Foundation of China[52201165] ; National Natural Science Foundation of China[52471162] ; National Natural Science Foundation of China[52322106] ; National Natural Science Foundation of China[52192594] ; National Natural Science Foundation of China[52120105001] ; National Natural Science Foundation of China[U2441261] ; China Postdoctoral Science Foundation[2024M763340] ; Shaanxi Innovative Research Team for Key Science and Technology[2023-CX-TD-46] ; Xi'an Uni-versity of Technology Doctoral Dissertation Innovation Fund[310-252072101]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Multidisciplinary ; Materials Science, Composites
WOS记录号	WOS:001446705900001
出版者	ELSEVIER SCI LTD
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/192145
专题	中国科学院金属研究所
通讯作者	Li, Shufeng; Kondoh, Katsuyoshi; 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, Ibaraki, Osaka 5670047, Japan
推荐引用方式 GB/T 7714	Liu, Lei,Li, Shufeng,Li, Shaolong,et al. Microstructure and mechanical properties of nano TiB whisker-reinforced titanium matrix composites using atomized Ti-TiB composite powder as raw materials[J]. COMPOSITES PART B-ENGINEERING,2025,298:12.
APA	Liu, Lei.,Li, Shufeng.,Li, Shaolong.,Liu, Huiying.,Wang, Shaodi.,...&Ma, Zongyi.(2025).Microstructure and mechanical properties of nano TiB whisker-reinforced titanium matrix composites using atomized Ti-TiB composite powder as raw materials.COMPOSITES PART B-ENGINEERING,298,12.
MLA	Liu, Lei,et al."Microstructure and mechanical properties of nano TiB whisker-reinforced titanium matrix composites using atomized Ti-TiB composite powder as raw materials".COMPOSITES PART B-ENGINEERING 298(2025):12.