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Strength and ductility of bulk Cu/Nb nanolaminates exposed to extremely high temperatures
Yang, Wenfan; Beyerlein, Irene J.; Jin, Qianqian; Ge, Hualong; Xiong, Ting; Yang, Lixin; Pang, Jianchao; Zhou, Yangtao; Shao, Xiaohong; Zhang, Bo; Zheng, Shijian; Ma, Xiuliang
2019-06-01
Source PublicationSCRIPTA MATERIALIA
ISSN1359-6462
Volume166Pages:73-77
AbstractIn this work, we investigate the tensile strength and ductility of bulk Cu/Nb nanolaminates after exposure to high temperatures. We show that the interface transforms from flat to wavy at a transition temperature of 700 degrees C, and tensile strength is linearly proportional to H-1/2 (H = layer thickness). Moreover, the wavy interfaces give rise to a higher slope of the Hall-Petch law. This result can be attributed to greater resistance to slip transmission across wavy interfaces compared to planar interfaces. After 1000 degrees C for 1 h, the material still exhibits a high strength of 468 MPa and enhanced elongation. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
KeywordCu-Nb Interface Strength Thermal stability Hall-Petch relation
Indexed BySCI
Language英语
WOS IDWOS:000466251000016
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81047
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Yang, Wenfan,Beyerlein, Irene J.,Jin, Qianqian,et al. Strength and ductility of bulk Cu/Nb nanolaminates exposed to extremely high temperatures[J]. SCRIPTA MATERIALIA,2019,166:73-77.
APA Yang, Wenfan.,Beyerlein, Irene J..,Jin, Qianqian.,Ge, Hualong.,Xiong, Ting.,...&Ma, Xiuliang.(2019).Strength and ductility of bulk Cu/Nb nanolaminates exposed to extremely high temperatures.SCRIPTA MATERIALIA,166,73-77.
MLA Yang, Wenfan,et al."Strength and ductility of bulk Cu/Nb nanolaminates exposed to extremely high temperatures".SCRIPTA MATERIALIA 166(2019):73-77.
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