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X-ray analysis of the defect structure in Cu subjected to severe plastic deformation
Kilmametov, AR; Zhang, K; Alexandrov, IV; Mazitov, RM; Lu, K
Corresponding AuthorKilmametov, AR()
2001
Source PublicationEPDIC 7: EUROPEAN POWDER DIFFRACTION, PTS 1 AND 2
ISSN0255-5476
Volume378-3Pages:457-462
AbstractThe 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.
Keywordgrain boundaries nanostructured materials severe plastic deformation X-ray analysis
Indexed BySCI
Language英语
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000172514200075
PublisherTRANS TECH PUBLICATIONS LTD
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/112487
Collection中国科学院金属研究所
Corresponding AuthorKilmametov, AR
Affiliation1.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
Recommended Citation
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.
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