Effect of Test Temperature on Fatigue of Shot Peened Magnesium Alloys

Author:  Wendt, Ketzmer and Wagner
Source:  Conf Proc: ICSP-8 Sept. 16-20, 2002 Garmisch-Partenkirchen, Germany
Doc ID:  2002050
Year of Publication:  2002
Abstract:  
Authors Jens Wendt, Andre Ketzmer and Lothar Wagner Chair of Physical Metallurgy and Materials Technology, Technical University of Brandenburg at Cottbus, Cottbus, Germany Abstract The effect of test temperature ranging from -25 to +50 C on mechanical properties of the high-strength wrought magnesium alloy AZ80 was evaluated. While yield stress and tensile strength within this temperature range continuously increased with decreasing temperature, the 10 7 cycles notch fatigue strength in fully reversed loading exhibited a marked minimum at T = 0 C. Shot peening was found to improve the fatigue strength at all tested temperatures.