Publication at Faculty of Mathematics and Physics |
2010
Abstract
Properties of aluminium alloys are significantly influenced by the presence and the distribution of particles of second phases. The optimalization of the alloy composition often requests fast and statistically relevant information about the phase composition, volume fraction and particle size distribution.
EBSD method with modern FEG-equipped SEM significantly raises the possibility to identify and statistically treat dispersoids of the size larger than several tens of nanometers. In the present contribution two twin-roll cast alluminium alloys for car heat exchangers are investigated.
It is shown that small variations in the Si content can considerably modify the presence of different second phase particles.