Simulation of the Pore Formation at Grain Boundaries in Aluminum

被引：4

作者：

Weckman, A., V ^{[1
]}

Dem'yanov, B. F. ^{[1
]}

机构：

[1] Polzunov Altai State Tech Univ, Barnaul 656038, Russia

来源：

JETP LETTERS | 2020年 / 111卷 / 11期

关键词：

PRESSURE; VACANCIES; EVOLUTION; GROWTH; COPPER; CREEP;

D O I：

10.1134/S0021364020110119

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The possibility of the pore formation at the tilt grain boundaries with the [100] misorientation axis is studied by computer simulation methods. Three special boundaries and three grain boundaries of a general type are studied at temperatures of 400, 500, and 600 K. It is shown that the presence of 3% lattice vacancies is insufficient for the pore formation both at the grain boundary and in grains, whereas in the presence of 6% lattice vacancies, pores are formed only in grains. Pores on grain boundaries are formed at temperatures of 500 and 600 K with a lattice vacancy concentration of 4 and 5%, respectively. Pores are not formed on a special grain boundary sigma 5(013).

引用

页码：643 / 646

页数：4

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