Inertia friction welding of SiC-reinforced 8009 aluminum
- and others
Dispersion-strengthened aluminum alloys are an important emerging class of high temperature materials. Aluminum alloy 8009 (Al-8.5 Fe 1.7 Si-1.3 V, wt%) is produced using rapid solidification/powder metallurgy (RS/PM) techniques and is strengthened by the formation of Al{sub 13}(Fe,V){sub 3}Si dispersoids during the RS process and subsequent consolidation/TMP operations. The addition of SiC particles to the 8009 alloy results in a metal matrix composite (MMC) with increased specific strength and stiffness. The effective use of this MMC will depend upon its ability to be joined both to itself and to dissimilar materials. Since the properties of this MMC derive from its unique microstructure, welding processes must be chosen that limit coarsening or dissolution of the Al{sub 13}(Fe,V){sub 3}Si dispersoids and avoid chemical reactions between the SiC particles and the matrix. The present study has demonstrated the feasibility of IFR welding for effective joining of 8009/SiC/11p. The microstructure, mechanical properties, and fracture characteristics of the welds are presented and contrasted with those of a previous study on IFR welding of a monolithic 8009 alloy. Additionally, process/structure/property relations are discussed.
- OSTI ID:
- 115489
- Report Number(s):
- CONF-9404233-; TRN: 95:002927-0067
- Resource Relation:
- Conference: 75. American Welding Society (AWS) annual meeting, Philadelphia, PA (United States), 10-15 Apr 1994; Other Information: PBD: 1994; Related Information: Is Part Of 75th Diamond anniversary American Welding Society annual meeting; PB: 273 p.
- Country of Publication:
- United States
- Language:
- English
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