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Ageing behaviour of Pd40Cu30Ni10P20 bulk metallic glass during long-time isothermal annealing
Wang, JF; Liu, L; Xiao, JZ; Zhang, T; Wang, BY; Zhou, CL; Long, W; Wang BY(王宝义); Zhou CL(周春兰); Wei L(魏龙)
2005
Source PublicationJOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume38Issue:6Pages:946-949
Corresponding AuthorHuazhong Univ Sci & Technol, State Key Lab Plast Forming Stimulat & Die & Moul, Wuhan 430074, Peoples R China ; Beihang Univ, Dept Mat Sci & Engn, Beijing 100083, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Anal & Technol, Beijing 100039, Peoples R China
SubtypeArticle
AbstractIn this paper, positron annihilation spectroscopy and differential scanning calorimetry were applied to study the structural relaxation of Pd40Cu30Ni10P20 bulk metallic glass during long-time annealing at 523 K. It was found that the relaxation of the alloy follows a two-stage process. In the initial stage, with increasing annealing time, the height of the glass transition peak (namely Delta c(p)) increased, while the average positron lifetime decreased. The isothermal relaxation kinetics obeys a Kohlrausch law with exponent of beta = 0.5 +/- 0.03. However, when the annealing time is beyond 32 h, the height of the glass transition peak (Delta c(p)) decreased, and the average positron lifetime increased. This is possibly due to the enhancement of the topological short-range ordering, which results in the generation of new defects on the interfaces between the solid-like regions and the liquid-like regions in amorphous phase. The experimental results were tentatively discussed in terms of free-volume theory and percolation theory.
Subject AreaPhysics
DOI10.1088/0022-3727/38/6/026
URL查看原文
Indexed ByADS
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Applied
WOS IDWOS:000229302700027
ADS Bibcode2005JPhD...38..946W
ADS URLhttps://ui.adsabs.harvard.edu/abs/2005JPhD...38..946W
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2005JPhD...38..946W/citations
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Cited Times:5 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/238785
Collection多学科研究中心
中国科学院高能物理研究所_中国散裂中子源
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Wang, JF,Liu, L,Xiao, JZ,et al. Ageing behaviour of Pd40Cu30Ni10P20 bulk metallic glass during long-time isothermal annealing[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2005,38(6):946-949.
APA Wang, JF.,Liu, L.,Xiao, JZ.,Zhang, T.,Wang, BY.,...&魏龙.(2005).Ageing behaviour of Pd40Cu30Ni10P20 bulk metallic glass during long-time isothermal annealing.JOURNAL OF PHYSICS D-APPLIED PHYSICS,38(6),946-949.
MLA Wang, JF,et al."Ageing behaviour of Pd40Cu30Ni10P20 bulk metallic glass during long-time isothermal annealing".JOURNAL OF PHYSICS D-APPLIED PHYSICS 38.6(2005):946-949.
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