Subsurface zone in aluminium studied by positron lifetime spectroscopy

被引：15

作者：

Dryzek, J ^{[1
]}

Dryzek, E ^{[1
]}

机构：

[1] Inst Nucl Phys, PL-31342 Krakow, Poland

来源：

TRIBOLOGY LETTERS | 2004年 / 17卷 / 02期

关键词：

positron annihilation; subsurface zones; defect concentration; defect depth profile; aluminium;

D O I：

10.1023/B:TRIL.0000032439.18668.fd

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The subsurface zone in the well- annealed pure 99.999% aluminium exposed to the sliding of a graphite pin was studied using positron lifetime spectroscopy. This experimental method allowed to detect the dislocation lines, dislocation lines with opposite jogs and single vacancies that occur during sliding. The type of defect changes upon increase of the sliding time and depends on the distance from the damaged surface. It was established that the total depth of defect distribution depends on the applied load and extends from 150 to 450 mum.

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收藏

页码：147 / 153

页数：7

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