Positron Lifetime Measurements of Subsurface Region in Aluminium Alloy and Aluminium Alloy Composite after Dry Sliding

Dryzek, E.

doi:10.12693/APhysPolA.107.753

Journal

Acta Physica Polonica A

2005 | 107 | 5 | 753-760

Article title

Positron Lifetime Measurements of Subsurface Region in Aluminium Alloy and Aluminium Alloy Composite after Dry Sliding

Authors

E. Dryzek

Content

Full texts:

http://przyrbwn.icm.edu.pl/APP/PDF/107/a107z506.pdf [remote]

Title variants

Languages of publication

Abstracts

This paper presents positron lifetime studies of the subsurface region of AK12 aluminium alloy and Al_2O_3-particle-reinforced AK12 aluminium alloy composite after sliding against steel in the pin-on-disc machine. The defect depth profile detected in the AK12 alloy extended up to 300μm but for the composite AK12 the range of this profile was significantly shortened to less than 90μm. The positron lifetime dependence on depth evidences a steep gradient of defect concentration near the surface. The subsurface zones have been also examined using scanning electron microscopy.

Keywords

78.70.Bj

Discipline

78.70.Bj: Positron annihilation(for positron states, see 71.60.+z in electronic structure of bulk materials; for positronium chemistry, see 82.30.Gg in physical chemistry and chemical physics)

Publisher

Institute of Physics, Polish Academy of Sciences

Journal

Acta Physica Polonica A

Year

2005

Volume

107

Issue

Pages

753-760

Physical description

Dates

published

2005-05

received

2004-09-20

Contributors

author

E. Dryzek

Institute of Nuclear Physics, Polish Academy of Sciences, Radzikowskiego 152, 31-342 Kraków, Poland

References

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Document Type

Publication order reference

Identifiers

DOI

10.12693/APhysPolA.107.753

YADDA identifier

bwmeta1.element.bwnjournal-article-appv107n506kz