Production of AA6082 Feedstock for Forming in the Semi-Solid State
- 1 July 2006
- journal article
- Published by Trans Tech Publications, Ltd. in Materials Science Forum
- Vol. 519-521, 1919-1924
- https://doi.org/10.4028/www.scientific.net/msf.519-521.1919
Abstract
Thixoforming offers the possibility of forming complex aluminum parts with a superior quality and a reduction of processing steps. The production of a fine, equiaxed, globular microstructure is essential for thixoforming. Strain Induced Melt Activation (SIMA) and the Cooling Slope (CS) casting processes were employed to produce AA6082 thixotropic feedstock in the present work.. SIMA process produces such a microstructure through recrystallization of heavily deformed billets and a subsequent heat treatment in the mushy zone. Molten metal with a suitable superheat is cast over a water-cooled, inclined metal plate into a permanent mould to produce the thixotropic billet in the CS casting route. The effect of cold work and heating temperature and time were investigated for the SIMA process where as the effect of CS length, casting temperature on the final microstructures were investigated for a fixed set of heating conditions in the CS casting route.This publication has 10 references indexed in Scilit:
- Microstructural evolution and tensile mechanical properties of thixoformed high performance aluminium alloysMaterials Science and Engineering: A, 2003
- Simple rheocasting processesJournal of the American Academy of Dermatology, 2002
- Thixoforming characteristics of thermo-mechanically treated AA 6061 alloy for suspension parts of electric vehiclesJournal of the American Academy of Dermatology, 2002
- Thixoforming of Normally Wrought Aluminium AlloysMaterials Science Forum, 2002
- Semisolid metal processingInternational Materials Reviews, 2002
- The development of joint parts for automobile body by thixocastingJSAE Review, 2001
- Evolution of near-equiaxed microstructure in the semisolid stateMaterials Science and Engineering: A, 2000
- Development of Non-Dendritic Microstructures in AA6061 Cast BilletsMaterials Science Forum, 2000
- Semisolid metal processingInternational Materials Reviews, 1994
- Behavior of metal alloys in the semisolid stateMetallurgical Transactions A, 1991