A process model for friction welding of Al-Mg-Si alloys and Al-SiC metal matrix composites; 1: HAZ temperature and strain rate distribution

Journal Article · Sun May 01 00:00:00 EDT 1994 · Acta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-7151(94)90369-7· OSTI ID:5159134

Midling, O T ^[1]; Grong, Oe ^[2]

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1. SINTEF, Trondheim (Norway). Div. of Metallurgy
2. Univ. of Trondheim (Norway). Norwegian Inst. of Tech.

The present investigation is concerned with the development of an overall process model for the microstructure and strength evolution during continuous drive friction welding of Al-Mg-Si alloys and Al-SiC metal matrix composites. In Part 1 the different components of the model are outlined and analytical solutions presented which provide quantitative information about the HAZ temperature distribution for a wide range of operational conditions. Moreover, a general procedure for modeling the HAZ strain rate distribution has been developed by introducing a series of kinematically admissible velocity equations which describe the material flow fields in the radial, the rotational, and the axial direction, respectively. Calculations performed for both types of materials show that the effective strain rate may exceed 1,000 s[sup [minus]1] in positions close to the contact section due to the high rotational velocities involved. Application of the model for evaluation of the response of Al-Mg-Si alloys and Al-SiC metal matrix composites to the imposed heating and plastic deformation is described in an accompanying paper (Part 2).

• OSTI ID: 5159134
• Journal Information: Acta Metallurgica et Materialia; (United States), Vol. 42:5; ISSN 0956-7151
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM BASE ALLOYS
FRICTION WELDING
COMPOSITE MATERIALS
HEAT AFFECTED ZONE
STRAIN RATE
TEMPERATURE DISTRIBUTION
MAGNESIUM ALLOYS
SILICON ALLOYS
SILICON CARBIDES
EXPERIMENTAL DATA
MATHEMATICAL MODELS
THEORETICAL DATA
ALLOYS
ALUMINIUM ALLOYS
CARBIDES
CARBON COMPOUNDS
DATA
FABRICATION
INFORMATION
JOINING
MATERIALS
NUMERICAL DATA
SILICON COMPOUNDS
WELDING
ZONES
360101* - Metals & Alloys- Preparation & Fabrication
360601 - Other Materials- Preparation & Manufacture