X-ray analysis of the defect structure in Cu subjected to severe plastic deformation

IMR OpenIR

	X-ray analysis of the defect structure in Cu subjected to severe plastic deformation
	Kilmametov, AR ; Zhang, K ; Alexandrov, IV ; Mazitov, RM ; Lu, K
通讯作者	Kilmametov, AR()
	2001
发表期刊	EPDIC 7: EUROPEAN POWDER DIFFRACTION, PTS 1 AND 2
ISSN	0255-5476
卷号	378-3 页码:457-462
摘要	The X-ray analysis of the nanostructured copper (99.98%) processed by different techniques of severe plastic deformation (SPD) was fulfilled in the temperature range from 85 K to 295 K. The analysis of obtained results in frames of the Debye quasiharmonic theory revealed a considerable decrease in the Debye temperature up to 19-23%, an increase of static and dynamic atomic displacements approximately 1.5 times and linear thermal expansion coefficient more than 3 times in the comparison with the coarse-grained copper. The revealed decrease in the Debye temperature doesn't contradict the results of previous experiments on the measurement of the adiabatic Young and shear modules by the ultrasonic method. The above mentioned changes of thermal characteristics of the SPD nanostructured copper can be caused by special non-equilibrium state of grain boundaries and nearby regions formed as a result of SPD. Results of fulfilled investigations gave a possibility to develop the structural model of SPD nanomaterials.
关键词	grain boundaries nanostructured materials severe plastic deformation X-ray analysis
收录类别	SCI
语种	英语
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000172514200075
出版者	TRANS TECH PUBLICATIONS LTD
引用统计	被引频次：4[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/321006/112487
专题	中国科学院金属研究所
通讯作者	Kilmametov, AR
作者单位	1.Ufa State Aviaton Tech Univ, Inst Phys Adv Mat, UA-450000 Ufa, Russia 2.Chinese Acad Sci, Met Res Inst, State Key Lab RSA, Shenyang 110015, Peoples R China
推荐引用方式 GB/T 7714	Kilmametov, AR,Zhang, K,Alexandrov, IV,et al. X-ray analysis of the defect structure in Cu subjected to severe plastic deformation[J]. EPDIC 7: EUROPEAN POWDER DIFFRACTION, PTS 1 AND 2,2001,378-3:457-462.
APA	Kilmametov, AR,Zhang, K,Alexandrov, IV,Mazitov, RM,&Lu, K.(2001).X-ray analysis of the defect structure in Cu subjected to severe plastic deformation.EPDIC 7: EUROPEAN POWDER DIFFRACTION, PTS 1 AND 2,378-3,457-462.
MLA	Kilmametov, AR,et al."X-ray analysis of the defect structure in Cu subjected to severe plastic deformation".EPDIC 7: EUROPEAN POWDER DIFFRACTION, PTS 1 AND 2 378-3(2001):457-462.