Extraordinary superplasticity at low homologous temperature and high strain rate enabled by a multiphase nanocrystalline network

doi:10.1016/j.ijplas.2023.103694

IMR OpenIR

	Extraordinary superplasticity at low homologous temperature and high strain rate enabled by a multiphase nanocrystalline network
	Wang, Hai 1; Koenigsmann, Konrad 4; Zhang, Shuyuan 1; Li, Yi 1,2; Liu, Huan 1,2; Liu, Hui 1; Ren, Ling 1,5; Qiu, Dong 3; Yang, Ke 1
通讯作者	Ren, Ling(lren@imr.ac.cn) ; Qiu, Dong(dong.qiu2@rmit.edu.au)
	2023-09-01
发表期刊	INTERNATIONAL JOURNAL OF PLASTICITY
ISSN	0749-6419
卷号	168 页码:11
摘要	Superplasticity is a highly sought-after property of components manufactured with complex ge-ometries in metal forming processes. However, superplasticity usually occurs at high tempera-tures and/or low strain rates, which entails high energy consumption, long processing time, and severe surface oxidation. Herein, we have developed a multiphase nanocrystalline network (MPNN) in a Ti6Al4V5Cu model alloy, where the grain boundary & beta; phases promote the sliding and rotation of ultrafine & alpha; grains, while the nanosized Ti2Cu particles pin down the & alpha;/& beta; bound-aries to maintain the thermostability of the nanostructure. Results show that the onset temper-ature for superplasticity of the model alloy is 250 degrees C lower than that of the Ti6Al4V alloy at the strain rate of 10-4 s-1. Remarkably, superplasticity was also observed at an extremely high strain rate of 1 s -1 at 750 degrees C, which is 2-4 orders of magnitude larger than conventional superplastic metals. The present work is of great significance in developing more economical and efficient superplastic deformation processes.
关键词	Superplasticity In-situ observation Thermostability Nanocrystalline
资助者	National Key Research and Development Program of China ; Bintech-IMR R amp; D Program ; IMR Innovation Fund ; Natural Science Foundation of Liaoning
DOI	10.1016/j.ijplas.2023.103694
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2022YFC2406003] ; National Key Research and Development Program of China[2022YFC2406001] ; Bintech-IMR R amp; D Program[GYY-JSBU-2022-008] ; IMR Innovation Fund[2023-PY06] ; Natural Science Foundation of Liaoning[2023-MS-022]
WOS研究方向	Engineering ; Materials Science ; Mechanics
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary ; Mechanics
WOS记录号	WOS:001036844500001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：14[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/321006/178760
专题	中国科学院金属研究所
通讯作者	Ren, Ling; Qiu, Dong
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Peoples R China 3.RMIT Univ, Ctr Addit Mfg, Sch Engn, Melbourne, Vic, Australia 4.Univ Chicago, Chicago, IL 60637 USA 5.Binzhou Inst Technol, Shandong Key Lab Adv Aluminium Mat & Technol, Weiqiao UCAS Sci & Technol Pk, Binzhou 256606, Peoples R China
推荐引用方式 GB/T 7714	Wang, Hai,Koenigsmann, Konrad,Zhang, Shuyuan,et al. Extraordinary superplasticity at low homologous temperature and high strain rate enabled by a multiphase nanocrystalline network[J]. INTERNATIONAL JOURNAL OF PLASTICITY,2023,168:11.
APA	Wang, Hai.,Koenigsmann, Konrad.,Zhang, Shuyuan.,Li, Yi.,Liu, Huan.,...&Yang, Ke.(2023).Extraordinary superplasticity at low homologous temperature and high strain rate enabled by a multiphase nanocrystalline network.INTERNATIONAL JOURNAL OF PLASTICITY,168,11.
MLA	Wang, Hai,et al."Extraordinary superplasticity at low homologous temperature and high strain rate enabled by a multiphase nanocrystalline network".INTERNATIONAL JOURNAL OF PLASTICITY 168(2023):11.