A fractured steel motorcycle kickstand was metallurgically investigated using a range of failure analysis tools [visual examination, energy dispersive X-ray (EDX) analysis, electron microprobe analysis (EPMA), scanning electron microscopy (SEM), fractography, optical microscopy, hardness testing and non-destructive testing (NDT)]. The steel kickstand’s composition, its microstructure, electron fractographs, and mechanical test results have been critically interpreted. Some evidence of wear damage, in the failed kickstand, was observed. The microstructural and fractographic analyses showed pre-existing micro-cracks which were believed to have grown to result in ductile failure followed by acceleration of corrosion. Recommendations have been made to avoid the failure of the motorcycle kickstand.
Failure analysis Ductile fracture Corrosion Wears Electron fractography
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The authors are grateful to the Department of Mechanical Engineering, University of Malaya (UM) to allow Metallurgy Lab and SEM facilities. The permission to use EPMA/SEM granted by Geology Department of UM is also acknowledged.
Kabir, M.J., Bulpett, R.: A study of fatigue failure initiation in high cycle high-pressure automotive applications and conventional rotating bending fatigue testing. Int. J. Fatigue 29, 1966–1970 (2007)MATHCrossRefGoogle Scholar
Zhang, X., Jin, X., Li, Y., Li, G.: Improved design of the main energy-absorbing automotive parts based on traffic accident analysis. Mater. Des. 29, 403–410 (2008)Google Scholar
Colangelo, V.J., Heiser, F.A.: Analysis of Metallurgical Failures. Wiley, New York (1987)Google Scholar
Sandvik, A., Østby, E., Thaulow, C.: A probabilistic fracture mechanics model including 3D ductile tearing of bi-axially loaded pipes with surface cracks. Eng. Fract. Mech. 75, 76–96 (2008)CrossRefGoogle Scholar
Jayadevan, K.R., Berg, E., Thaulow, C., Østby, E., Skallerud, B.: Numerical investigation of ductile tearing in surface cracked pipes using line-springs. Int. J. Solids Struct. 43, 2378–2397 (2006)MATHCrossRefGoogle Scholar
Moulin, D., Clement, G., Drubay, B., Goudet, G.: Evaluation of ductile tearing in cracked pipes and elbows under bending. Nucl. Eng. Des. 171, 33–43 (1997)CrossRefGoogle Scholar
Abouei, V., Saghafian, H., Kheirandish, Sh.: Effect of microstructure on the oxidative wear behavior of plain carbon steel. Wear 262, 1225–1231 (2007)CrossRefGoogle Scholar