This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
AJ (Mg-Al-Sr) Alloy Mechanical Properties: From Fatigue to Crack Propagation
Technical Paper
2005-01-0729
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
In addition to the creep properties, the fatigue properties are essential for the design of a power-train component in Mg which is operated at elevated temperatures. In case of the new BMW I6 composite Mg/Al crankcase using the AJ alloy system, material testing focused on both subjects. The basic mechanical properties were determined from separately die cast samples and also from samples machined out from high-pressure die cast components. Tensile, high cycle fatigue properties, low cycle fatigue and crack propagation properties were established and analyzed within the technical context for power-train applications reflected in the temperature and load levels. The aspects of mean stress influence, notch sensitivity and crack propagation are evaluated to estimate the performances of the AJ62A alloy system.
Recommended Content
Authors
Citation
Labelle, P., Fischersworring-Bunk, A., and Baril, É., "AJ (Mg-Al-Sr) Alloy Mechanical Properties: From Fatigue to Crack Propagation," SAE Technical Paper 2005-01-0729, 2005, https://doi.org/10.4271/2005-01-0729.Also In
References
- Landerl C. Klauer N. Klüting M. ‘The Design Characteristics of the New BMW Six Cylinder Inline Petrol Engine’ 13 th Aachen Colloquium October 4-6th 2004
- Landerl C. Jooss R. Fischersworring-Bunk A. Wolf J. Fent A. Jagodzinski S. ‘Aluminum-Magnesium Composite Design - an Innovative Approach to Lightweight Crankcase Technology’ 12 th Aachen Colloquium October 6-8th 2003
- Baril E. Labelle P. Fischersworring-Bunk A. ‘AJ (Mg-Al-Sr) Alloy System Used for New Engine Block’ SAE 2004-01-0659 Detroit, MI SAE2004 WorldCongress
- Baril E. Labelle P. Pekguleryuz M. O. “Elevated Temperature Mg-Al-Sr: Creep Resistance, Mechanical Properties, and Microstructure” JOM Nov. 2003 34 39
- Pekguleryuz M. Labelle P. Argo D. “Magnesium Die Cast Alloy AJ62x with Superior Creep Resistance, Ductility and Die Castability” SAE 2003-01-0190 Detroit, MI SAE2003 WorldCongress
- Std Practice for Conducting Force Controlled Constant Amplitude Axial Fatigue Test of Metallic Materials
- Std Practice for conducting Strain-Controlled Fatigue Testing
- Labelle P. Argo D. Pekguleryuz M. Fasoyinu Y. Bouchard R. Sahoo M. ‘Comparative Mechanical Properties of AE42 and AJ52x High-Temperature Diecast Magnesium Alloys for Elevated Temperature Applications’ SAE 2003-01-0188 Detroit, MI SAE2003 WorldCongress
- Std Practice for Operating Salt Spray (Fog) Apparatus
- Peterson R.E. ‘Stress Concentration Design Factors’ John Wiley & Sons Inc.
- Std Test Method For Measurement of Fatigue Crack growth Rates
- Mayer H. et al. ‘Influence of porosity on the fatigue limit of die cast magnesium and aluminium alloys’ Int. J. of Fatigue 25 2003 245 256
- Military Handbook Department of US Defense ‘Metallic Materials and Elements for Aerospace Vehicle Structure’ 1992
- Rodrigo P.D.D. Murray M. Mao H. Chandrasekar V. Kisioglu Y. Deshpande A. Brevick J. Mobley C. Esdaile R. ‘Fatigue Properties of Die Cast Alloys’ SAE 2000-01-1122 Detroit, MI SAE2000 WorldCongress
- Emley E.F. ‘Principles of Magnesium Technology’ Pergamon Press 1966
- Beck E.H.A. ‘The technology of Magnesium and its Alloys’ F.A. Hughes & Co 1943
- Suresh S. “Fatigue of materials” Cambridge University Press Cambridge 1991
- Eisenmeier G. et al. ‘Cyclic deformation and fatigue behaviour of magnesium alloy AZ91D’ Mat. Sc. & Engineering A 319-321 2001 578 582
- Venkateswaran P. et al. “Fatigue crack growth behaviour of a die-cast magnesium alloy AZ91D” Materials Letters 58 2004 2525 2529
- Nasgro Version 3.0.20 ‘Fatigue crack growth computer program’ NASA, Appendix G2, Materials constants SI (European Space Agency) Units, Lyndon B. Johnson Space Center May 2002