Thermal analysis of 3D-CF/Al-MMC by means of DSC and dilatometry tests
Werner Hufenbach, Maik Gude, Andrzej Czulak, Piotr Malczyk, Anja Winkler
Quarterly No. 2, 2013 pages 96-101
DOI:
keywords: thermal analysis, metal matrix composites, aluminium alloys, carbon fibre
abstract Increasing demands for energy efficient lightweight structures capable of working in complex termomechanical loading conditions require the selection of appropriate load adapted materials as well as the development of associated manufacture processes ready for series production. Metal matrix composites with their advantages such as high thermal stability, reinforcement structure designability and high specific material properties have become more popular among materials applied as reliable load bearing products. To adapt the manufacturing process for these composites, understanding of solidification processes, the type and formation of interface and thermal behaviour of the composite are indispensable. The aim of this work was to understand the thermal behaviour of aluminium based metal matrix composites reinforced with carbon fibres 3D textile manufactured via the high pressure die casting (HPDC) process. Within the residual stress analysis and the sensitivity analysis of fibre coatings, plane specimens made of Al-226D with a carbon fibre (HTS) reinforcement with a nickel phosphorus coating have been investigated. Differential scanning calorimetry (DSC) and dilatometry tests have been performed considering the anisotropy of textiles and the formation of a crystallisation front in the cast specimens.