Recoverable tuning of lattice mismatch and strength in ultrastable-nanostructured Cu/Ag spinodoid alloys

doi:10.1016/j.actamat.2024.119827

IMR OpenIR

	Recoverable tuning of lattice mismatch and strength in ultrastable-nanostructured Cu/Ag spinodoid alloys
	Yang, Sheng-Nan 1,2; Xie, Hui 1; Guan, Huai 3; Jin, Hai -Jun 1
通讯作者	Jin, Hai -Jun(hjjin@imr.ac.cn)
	2024-05-01
发表期刊	ACTA MATERIALIA
ISSN	1359-6454
卷号	269 页码:11
摘要	The strengthening effect of interface in materials is usually studied by monitoring the change of strength in response to varying structure sizes, such as the varying grain or phase sizes. In this study, we demonstrate that the strength of a nanostructured material can be recoverably tuned by modifying interfacial structure without changing structure size. Specifically, we studied the Cu/Ag spinodoid alloys fabricated by dealloying and electrochemical deposition, which exhibit a cube -on -cube orientation relationship between two interpenetrating nanophases. This material remains stable against coarsening even at temperatures near the eutectic melting point, due to the presence of low -energy semi -coherent interfaces and the lack of defects such as grain boundaries. Using cyclic thermal annealing, we are able to alter the solid solubility of both nanophases and, consequently, the lattice mismatch between them, resulting in a recoverable tuning of hardness and strength. The amplitude of hardness modulation decreases with increasing feature size (A), and changes sign when A exceeds similar to 500 nm. This is attributed to a competition between two strengthening mechanisms: the interfaceinduced strengthening that is more prominent at a lower A, and the solid solution hardening that is largely A -insensitive. The finding indicates that interface hardening prevails over solution hardening when A is below similar to 500 nm. Current study paves the way for the development of strong and stable nanostructured materials whose properties can be optimized by independently tailoring feature sizes and interfacial structures.
关键词	Spinodoid alloys Dealloying Electrodeposition Semi-coherent interfaces Thermal stability Strength Hardness
资助者	National Natural Science Foun-dation of China ; Shenyang National Laboratory for Materials Science
DOI	10.1016/j.actamat.2024.119827
收录类别	SCI
语种	英语
资助项目	National Natural Science Foun-dation of China[51971218] ; National Natural Science Foun-dation of China[52020105011] ; Shenyang National Laboratory for Materials Science
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001205865800001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：7[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/321006/185681
专题	中国科学院金属研究所
通讯作者	Jin, Hai -Jun
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Liaoning Acad Mat, Inst Mat Plainificat, Shenyang 110004, Peoples R China
推荐引用方式 GB/T 7714	Yang, Sheng-Nan,Xie, Hui,Guan, Huai,et al. Recoverable tuning of lattice mismatch and strength in ultrastable-nanostructured Cu/Ag spinodoid alloys[J]. ACTA MATERIALIA,2024,269:11.
APA	Yang, Sheng-Nan,Xie, Hui,Guan, Huai,&Jin, Hai -Jun.(2024).Recoverable tuning of lattice mismatch and strength in ultrastable-nanostructured Cu/Ag spinodoid alloys.ACTA MATERIALIA,269,11.
MLA	Yang, Sheng-Nan,et al."Recoverable tuning of lattice mismatch and strength in ultrastable-nanostructured Cu/Ag spinodoid alloys".ACTA MATERIALIA 269(2024):11.