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Interfacial/intragranular reinforcement of titanium-matrix composites produced by a novel process involving core-shell structured powder

文献类型：期刊论文

作者Li, Shaofu2,3,4; Yang, Yafeng2,3,4; Misra, R. D. K.1; Liu, Yu3,4; Ye, Dong3,4; Hu, Chaoquan3,4; Xiang, Maoqiao4
刊名CARBON
出版日期2020-08-30
卷号164页码:378-390
ISSN号0008-6223
DOI10.1016/j.carbon.2020.04.010
英文摘要Powder metallurgy (P/M) route is commonly adopted to fabricate titanium-matrix composites (TMCs). However, majority of the reinforcements are distributed along the grain boundaries, but are absent within the grains, such that the desired mechanical properties are rarely obtained. We have developed a novel process of interfacial/intragranular reinforcement of TMC involving core-shell structured carbon nanotubes (CNTs)/amorphous-C coated Ti-6Al-4V composite powder. In comparison to pristine Ti-6Al-4V alloy, the addition of 0.25 wt% C led to more than 500 MPa increase in compressive yield strength. This is ascribed to the synergistic strengthening effect of interfacial-distributed CNTs/TiC nanoparticles and intragranular-distributed TiC nanoplatelets. The friction coefficient was effectively reduced by more than 30% because of the pinning effect of uniform TiC nanoplatelets that were deeply embedded inside the Ti-6Al-4V matrix. (C) 2020 Elsevier Ltd. All rights reserved.
WOS关键词SITU TIBW/TI6AL4V COMPOSITE ; CARBON NANOTUBES ; MECHANICAL-PROPERTIES ; HEAT-TREATMENT ; TENSILE PROPERTIES ; LOW-TEMPERATURE ; LOAD-TRANSFER ; MICROSTRUCTURE ; TI-6AL-4V ; EXTRUSION
资助项目Key Research Program of Frontier Sciences, Chinese Academy of Sciences[QYZDB-SSW-JSC045] ; National Natural Science Foundation of China[51874271] ; National Natural Science Foundation of China[51801201] ; DNL Cooperation Fund, CAS[DNL180304] ; Scientific Instrument Developing Project of the Chinese Academy of Sciences[YJKYYQ20190011]
WOS研究方向Chemistry ; Materials Science
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000536478700009
资助机构Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; National Natural Science Foundation of China ; DNL Cooperation Fund, CAS ; Scientific Instrument Developing Project of the Chinese Academy of Sciences
源URL[http://ir.ipe.ac.cn/handle/122111/40862]  
专题中国科学院过程工程研究所
通讯作者Yang, Yafeng
作者单位1.Univ Texas El Paso, Dept Met Mat & Biomed Engn, 500 W Univ Ave, El Paso, TX 79968 USA
2.Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Li, Shaofu,Yang, Yafeng,Misra, R. D. K.,et al. Interfacial/intragranular reinforcement of titanium-matrix composites produced by a novel process involving core-shell structured powder[J]. CARBON,2020,164:378-390.
APA Li, Shaofu.,Yang, Yafeng.,Misra, R. D. K..,Liu, Yu.,Ye, Dong.,...&Xiang, Maoqiao.(2020).Interfacial/intragranular reinforcement of titanium-matrix composites produced by a novel process involving core-shell structured powder.CARBON,164,378-390.
MLA Li, Shaofu,et al."Interfacial/intragranular reinforcement of titanium-matrix composites produced by a novel process involving core-shell structured powder".CARBON 164(2020):378-390.

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来源：过程工程研究所

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