Defect depth profiling after sphere indentation and blasting in aluminum and aluminum alloy detected by positron annihilation

被引:20
|
作者
Dryzek, E [1 ]
机构
[1] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland
关键词
D O I
10.1023/A:1025976031584
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The paper presents the experimental results of positron annihilation measurements of the subsurface zones in aluminum and aluminum alloy exposed to the indentation of the small steel ball or blasting by the silicon carbide particles. The measurements of the Doppler broadening of the annihilation line and positron lifetime (PL) enabled the depth profile of open volume defects induced by indentation and blasting processes to be obtained. The coincidence of the von Mises criterion for yield with the onset of the increase of the defect concentration at certain depth was detected. It was established that the defects created in the pure aluminum and the aluminum alloy detected by positrons are different. However, the kinds of induced defects do not change with depth. The PL measurements indicate the presence of vacancy clusters in samples exposed to blasting. The vacancy clusters created in the aluminum alloy are larger than in the pure aluminum. (C) 2003 Kluwer Academic Publishers.
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收藏
页码:3755 / 3763
页数:9
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共 24 条
  • [1] Defect depth profiling after sphere indentation and blasting in aluminum and aluminum alloy detected by positron annihilation
    Ewa Dryzek
    [J]. Journal of Materials Science, 2003, 38 : 3755 - 3763
  • [2] A Positron Annihilation Study of Corrosion of Aluminum and Aluminum Alloy by NaOH
    Y. C. Wu
    T. Zhai
    P. G. Coleman
    [J]. Metallurgical and Materials Transactions A, 2012, 43 : 2823 - 2831
  • [3] A Positron Annihilation Study of Corrosion of Aluminum and Aluminum Alloy by NaOH
    Wu, Y. C.
    Zhai, T.
    Coleman, P. G.
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2012, 43A (08): : 2823 - 2831
  • [4] Positron annihilation study of the cavitation in 5083 superplastic aluminum alloy
    Araki, H
    Fujita, E
    Nakata, S
    Shirai, Y
    [J]. TOWARDS INNOVATION IN SUPERPLASTICITY II, 1999, 304-3 : 705 - 710
  • [5] Depth-resolved positron annihilation studies of argon nanobubbles in aluminum
    Dhaka, R. S.
    Gururaj, K.
    Abhaya, S.
    Amarendra, G.
    Amirthapandian, S.
    Panigrahi, B. K.
    Nair, K. G. M.
    Lalla, N. P.
    Barman, S. R.
    [J]. JOURNAL OF APPLIED PHYSICS, 2009, 105 (05)
  • [6] Depth-resolved positron annihilation studies of argon nanobubbles in aluminum
    Dhaka, R.S.
    Gururaj, K.
    Abhaya, S.
    Amarendra, G.
    Amirthapandian, S.
    Panigrahi, B.K.
    Nair, K.G.M.
    Lalla, N.P.
    Barman, S.R.
    [J]. Journal of Applied Physics, 2009, 105 (05):
  • [7] Defect depth scanning over the positron implantation profile in aluminum
    Dryzek, J
    [J]. APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2005, 81 (05): : 1099 - 1104
  • [8] Defect depth scanning over the positron implantation profile in aluminum
    J. Dryzek
    [J]. Applied Physics A, 2005, 81 : 1099 - 1104
  • [9] COPPER-ALUMINUM ALLOY FERMI SURFACE STUDIES BY POSITRON ANNIHILATION
    THOMPSON, A
    MURRAY, BW
    BERKO, S
    [J]. PHYSICS LETTERS A, 1971, A 37 (05) : 461 - &
  • [10] POSITRON-ANNIHILATION STUDY OF ETA' PRECIPITATION KINETICS IN AN ALUMINUM-ALLOY
    ABIS, S
    BIASINI, M
    DUPASQUIER, A
    SFERLAZZO, P
    SOMOZA, A
    [J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1989, 1 (23) : 3679 - 3686