Influence of solid solution strengthening on the local mechanical properties of single crystal and ultrafine-grained binary Cu-AlX solid solutions

doi:10.1557/jmr.2017.320

IMR OpenIR

	Influence of solid solution strengthening on the local mechanical properties of single crystal and ultrafine-grained binary Cu-AlX solid solutions
	Maier-Kiener, Verena 1; An, Xianghai 2,3; Li, Linlin 2; Zhang, Zhefeng 2; Pippan, Reinhard 4; Durst, Karsten 5
通讯作者	Durst, Karsten(k.durst@phm.tu-darmstadt.de)
	2017-12-28
发表期刊	JOURNAL OF MATERIALS RESEARCH
ISSN	0884-2914
卷号	32 期号:24 页码:4583-4591
摘要	In this work, the influence of Al-solutes on the mechanical behavior of Cu-AlX solid solutions has been studied using indentation strain rate jump tests for single crystalline and ultrafine-grained (UFG) microstructures from high pressure torsion (HPT) processing. Al-solutes in Cu classically lead to a solid solution strengthening, coupled with a decrease in stacking fault energy, which influences also the grain size after HPT processing. For all alloys, a higher hardness is found at lower indentation depths, which can be nicely described by a modified Nix/Gao model down to 100 nm indentation depth. Among the single crystals, the largest size effects are found for the higher solute contents, indicating a stronger work hardening at small length scales for the solid solutions. The dilute UFG solid solutions showed a strong softening after a strain rate reduction test, with a pronounced transient region. Cu-A115 is, however, quite stable, showing abrupt changes in hardness without strong transients. This indicates that solute solution strengthening does not only influence the indentation size effect and structure formation during HPT processing but also stabilizes the grain structure during subsequent deformation.
关键词	nanostructure nano-indentation hardness
资助者	Austrian Federal Government within framework of the COMET Funding Program (MPPE) ; ERC (USMS) ; National Natural Science Foundation of China (NSFC)
DOI	10.1557/jmr.2017.320
收录类别	SCI
语种	英语
资助项目	Austrian Federal Government within framework of the COMET Funding Program (MPPE)[837900A7.19] ; ERC (USMS)[340185] ; National Natural Science Foundation of China (NSFC)[51331007] ; National Natural Science Foundation of China (NSFC)[51471170]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000419001500014
出版者	CAMBRIDGE UNIV PRESS
引用统计	被引频次：11[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/321006/80433
专题	中国科学院金属研究所
通讯作者	Durst, Karsten
作者单位	1.Univ Leoben, Dept Phys Met & Mat Testing, A-8700 Leoben, Austria 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 3.Univ Sydney, Sch Aerosp Mech & Mechatron Engn, Sydney, NSW 2006, Australia 4.Austrian Acad Sci, Erich Schmid Inst Mat Sci, A-8700 Leoben, Austria 5.Tech Univ Darmstadt, Phys Met, D-64287 Darmstadt, Germany
推荐引用方式 GB/T 7714	Maier-Kiener, Verena,An, Xianghai,Li, Linlin,et al. Influence of solid solution strengthening on the local mechanical properties of single crystal and ultrafine-grained binary Cu-AlX solid solutions[J]. JOURNAL OF MATERIALS RESEARCH,2017,32(24):4583-4591.
APA	Maier-Kiener, Verena,An, Xianghai,Li, Linlin,Zhang, Zhefeng,Pippan, Reinhard,&Durst, Karsten.(2017).Influence of solid solution strengthening on the local mechanical properties of single crystal and ultrafine-grained binary Cu-AlX solid solutions.JOURNAL OF MATERIALS RESEARCH,32(24),4583-4591.
MLA	Maier-Kiener, Verena,et al."Influence of solid solution strengthening on the local mechanical properties of single crystal and ultrafine-grained binary Cu-AlX solid solutions".JOURNAL OF MATERIALS RESEARCH 32.24(2017):4583-4591.