Early stage phenomena and role of microalloying elements in phase decomposition of aluminum alloys

被引：13

作者：

Sato, T ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Met & Ceram Sci, Meguro Ku, Tokyo 1528552, Japan

来源：

ALUMINIUM ALLOYS: THEIR PHYSICAL AND MECHANICAL PROPERTIES, PTS 1-3 | 2000年 / 331-3卷

关键词：

age hardening; clusters; excess vacancies; GP zones; microalloying elements; Monte Carlo simulation; phase decomposition; precipitation;

D O I：

10.4028/www.scientific.net/MSF.331-337.85

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The early stage phenomena of phase decomposition of some age-hardenable aluminum alloys are demonstrated in terms of the kinetics and microstructures. In particular, the effects of quenched-in excess vacancies and microalloying elements on the early stage clustering behavior are discussed. Based on the pair interactions between atoms and vacancies Monte Carlo simulation was performed. The complex clusters of solute/microalloying element/vacancy were found to be formed and act as nucleation sites for clusters and GP zones. The role of microalloying elements is well understood in terms of the ordering parameters.

引用

页码：85 / 96

页数：12

共 18 条

[1]

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[2]

BABA Y, 1967, J JAPAN I METALS, V31, P279

[3] RELATION BETWEEN FORMATION ENERGY OF A VACANCY AND NEAREST NEIGHBOR INTERACTIONS IN PURE METALS AND LIQUID-METALS [J].