Growth Rate of Small Fatigue Cracks of Cast Magnesium Alloy at Different Conditions

Xi Shu Wang; Jing Hong Fan

doi:10.4028/www.scientific.net/MSF.546-549.77

Paper Titles

Development of Magnesium Alloys with High Performance
p.55

Effects of Microstructure and Partial Melting on Tensile Properties of AZ91 Magnesium Cast Alloy
p.65

Effect of Heat Treatment on the Microstructure and Creep Behavior of Mg-Sn-Ca Alloys
p.69

Creep Behaviour and Microstructure of Magnesium Die Cast Alloys AZ91 and AE42
p.73

Growth Rate of Small Fatigue Cracks of Cast Magnesium Alloy at Different Conditions
p.77

A Cyclic Stress-Strain Constitutive Model for Polycrystalline Magnesium Alloy and its Application
p.81

Dynamic Stress-Strain Behavior of AZ91 Alloy at High-Strain Rate
p.89

Microstructure Evaluate System of Semi-Solid Forming
p.93

Zr-Containing Precipitates in Mg-3wt%Nd-0.2wt%Zn-0.4wt%Zr Alloy during Solution Treatment at 540°C
p.97

HomeMaterials Science ForumMaterials Science Forum Vols. 546-549Growth Rate of Small Fatigue Cracks of Cast...

Growth Rate of Small Fatigue Cracks of Cast Magnesium Alloy at Different Conditions

Abstract:

Some differences between the growth behaviors of small fatigue crack of cast AM50 magnesium alloy at different elevated temperature and at open and closed states were investigated based on in-situ observations with scanning electron microscope (SEM). These results indicate that the growth rates of small fatigue cracks depend on not only the stress levels but also the elevated temperature and crack states. The fatigue crack growth rates were estimated based on novel and conventional methods.