Effect on Dynamic Biaxial Fracture Behaviors by Different Heat Treatments on Magnesium Alloy
The dynamic fracture experiments were conducted on the heat treated magnesium alloys; AZ31B-O, AZ31B-200 °C, and AZ31B-430 °C. Cross shaped specimens with the crack on their center were used for the experiments. Dynamic fracture behavior near a crack tip under equal and unequal biaxial stress was observed by the caustics method. From the observation, the stress intensity factor and the fracture toughness value were calculated. As a result, the effect of heat treatment was found. However, no clear relation such as correlation between dynamic stress intensity factor and heat treatment temperature was deduced.
Wei Yang, Mamtimin Geni, Tiejun Wang and Zhuo Zhuang
A. Shimamoto, R. Kubota, "Effect on Dynamic Biaxial Fracture Behaviors by Different Heat Treatments on Magnesium Alloy", Advanced Materials Research, Vols. 33-37, pp. 357-362, 2008