A process model for friction stir welding of age hardening aluminum alloys

被引：547

作者：

Frigaard, O ^{[1
]}

Grong, O

Midling, OT

机构：

[1] Royal Norwegian Airforce, Mat Command Analyt Lab, N-2027 Kjeller, Norway

[2] Norwegian Univ Sci & Technol, Dept Mat Technol & Electrochem, N-7491 Trondheim, Norway

[3] Hydro Aluminium Maritime AS, N-4262 Avaldsnes, Norway

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2001年 / 32卷 / 05期

关键词：

D O I：

10.1007/s11661-001-0128-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present investigation, a numerical three-dimensional (3-D) heat flow model for friction stir welding (FSW) has been developed, based on the method of finite differences. The algorithm, which is implemented in MATLAB 5.2, is provided with a separate module for calculation of the microstructure evolution and the resulting hardness distribution. The process model is validated by comparison with in-situ thermocouple measurements and experimental hardness profiles measured at specific time intervals after welding to unravel the strength recovery during natural aging. Furthermore, the grain structure within the plastically deformed region of the as-welded materials has been characterized by means of the electron backscattered diffraction (EBSD) technique in the scanning electron microscope (SEM), Some practical applications of the process model are described toward the end of the article.

引用

页码：1189 / 1200

页数：12

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