Influence of Temperature on Fracture Mechanisms of Magnesium Composites
Magnesium alloy AZ91 (9 % Al, 1 % Zn, 0.2 % Mn in wt.%) with different reinforcements has been used to study fracture mechanisms and crack development. SiC particles and /or Saffil fibres were used as the reinforcement. Fracture surfaces of specimens prepared by impact tests in the temperature range from room temperature to 300 °C were investigated by scanning electron microscope (SEM). Possible mechanisms of fracture are discussed in the relation to the test temperature.
V. Gärtnerová et al., "Influence of Temperature on Fracture Mechanisms of Magnesium Composites", Materials Science Forum, Vol. 482, pp. 375-378, 2005