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Effects of hot-pressing parameters on microstructure and mechanical properties of composites synthesized by Al-TiO(2)in-situ reaction

文献类型：期刊论文

作者Liu, Yin1,2; Chen, Wanqi3; Gu, Liming1,2; Li, Xiaonan1,2; Zan, Yuning1,4; Wang, Quanzhao1,4; Wang, Dong1; Xiao, Bolv1; Ma, Zongyi1,4
刊名SCIENCE CHINA-TECHNOLOGICAL SCIENCES
出版日期2023-08-31
页码10
关键词metal matrix composites high energy ball milling high-temperature properties nanoparticles in-situ reaction
ISSN号1674-7321
DOI10.1007/s11431-022-2359-5
通讯作者Zan, Yuning(ynzan15b@imr.ac.cn) ; Wang, Dong(Dongwang@imr.ac.cn)
英文摘要As a classic in-situ reaction, the Al-TiO2 reaction is expected to prepare aluminum matrix composites with high thermal stability. In this study, it was found that the preparation method of ensuring sufficient reaction using higher temperatures in previous studies was not conducive to acquiring optimized high-temperature strength. With the increase of hot-pressing temperature and the extension of holding time, the in-situ reaction became more thorough, but the strength of the composites first increased and then decreased. Coarsening of the microstructure at high temperatures would lead to degradation of strength and controlling the in-situ reaction process by the hot-pressing parameters could optimize the mechanical properties of the composites. Strengthening mechanisms at room and high temperatures were studied, and it was found that the load-transfer and Orowan strengthening mechanisms are the main strengthening effects at room temperature, while the pinning effect of fine particles became more crucial at elevated temperatures. As a result, the coarsening of the reinforcing phases was more detrimental to the high temperature strength. Therefore, an insufficient in-situ reaction led to more excellent mechanical properties, and the composite hot-pressed at 605 degrees C and held for 2 h exhibited the highest strength, which was 367 MPa at room temperature and 170 MPa at 350 degrees C.
资助项目National Key Ramp;D Program of China[2021YFA1600704] ; National Natural Science Foundation of China[52203385] ; National Natural Science Foundation of China[52171056] ; CNNC Science Fund for Talented Young Scholars ; IMR Innovation Fund[2021-ZD02] ; Natural Science Foundation of Liaoning Province[2022-BS -009] ; Young Elite Scientists Sponsorship Program by CAST[YESS20220225]
WOS研究方向Engineering ; Materials Science
语种英语
WOS记录号WOS:001064453600002
出版者SCIENCE PRESS
资助机构National Key Ramp;D Program of China ; National Natural Science Foundation of China ; CNNC Science Fund for Talented Young Scholars ; IMR Innovation Fund ; Natural Science Foundation of Liaoning Province ; Young Elite Scientists Sponsorship Program by CAST
源URL[http://ir.imr.ac.cn/handle/321006/179129]  
专题金属研究所_中国科学院金属研究所
通讯作者Zan, Yuning; Wang, Dong
作者单位1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.China Nucl Power Engn Co Ltd, Beijing Inst Nucl Engn, Nucl Equipment Div, Beijing 100840, Peoples R China
4.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Yin,Chen, Wanqi,Gu, Liming,et al. Effects of hot-pressing parameters on microstructure and mechanical properties of composites synthesized by Al-TiO(2)in-situ reaction[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2023:10.
APA Liu, Yin.,Chen, Wanqi.,Gu, Liming.,Li, Xiaonan.,Zan, Yuning.,...&Ma, Zongyi.(2023).Effects of hot-pressing parameters on microstructure and mechanical properties of composites synthesized by Al-TiO(2)in-situ reaction.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,10.
MLA Liu, Yin,et al."Effects of hot-pressing parameters on microstructure and mechanical properties of composites synthesized by Al-TiO(2)in-situ reaction".SCIENCE CHINA-TECHNOLOGICAL SCIENCES (2023):10.

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来源：金属研究所

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