[Back]


Publications in Scientific Journals:

M. Linz, H. Winkelmann, K. Hradil, E Badisch, F Mücklich:
"Directional development of residual stress and surface fatigue during sliding contact";
Engineering Failure Analysis, 35 (2013), 678 - 685.



English abstract:
Stresses in the near-surface area can form cracks which join together, propagate and com-bine, forming pits due to material spall-off. The stresses causing the cracks are not only influ-enced by external forces, residual stresses stored in the material also play an important role. Moreover, these residual stresses can vary during the lifetime of the sliding components. Cracks are found in the wear tracks of linear oscillating ball contacts on AISI 4140 steel. The crack propagation at the surface is longitudinal to the sliding direction. Residual stress analysis by X-ray diffraction (XRD) shows that normalized samples develop tensile stresses in the near-surface zone of the wear track. Residual stresses are found to be higher transversal to the moving direction than longitudinal.

Keywords:
Tribology, residual stress, cracks, X-ray diffraction, sliding contact


"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
http://dx.doi.org/10.1016/j.engfailanal.2013.06.011


Created from the Publication Database of the Vienna University of Technology.