Grain Refinement of Aluminium Alloys by Inoculation
β Scribed by A.L. Greer; P.S. Cooper; M.W. Meredith; W. Schneider; P. Schumacher; J.A. Spittle; A. Tronche
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 437 KB
- Volume
- 5
- Category
- Article
- ISSN
- 1438-1656
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β¦ Synopsis
Abstract
A review is given of the studies of aluminium inoculation undertaken within the EU Network βMicrostructural Engineering by Solidification Processingβ (MEBSP). A wide range of studies of industrial practice of grain refining and of the fundamental mechanisms of nucleation and growth have contributed to improved understanding. Particular advances have been made in understanding the relative performance of different grain refiners.
π SIMILAR VOLUMES
Grain refiner is added to the melt in order to introduce particles which are effective nucleant substrates for the primary aluminium phase. The most widely used grain refiners are based on the Al-Ti-B system. Depending on the composition of the master alloy, TiB 2 , (Al,Ti)B 2 and Al 3 Ti particles
The grain refinement mechanism of undercooled single-phase Fe 70 Co 30 alloy was investigated. With increasing the initial melt undercooling (DT), the first grain refinement occurs within 22 KoDTo87 K, and the second one if DT4183 K. Applying a dendrite break-up model (i.e. on the basis of morpholog
It has been demonstrated recently that intensive melt shearing can be an effective approach to the grain refinement of both shape casting and continuous casting of Mg alloys. In the present study, the mechanisms of grain refinement by intensive melt shearing were investigated through a combination o