Metallurgy, Vol. 54 No. 1, 2015.
Original scientific paper
Effect of variable load on crack initiation microalloyed steel S 690-QL
M. Burzić
; University of Belgrade, I.C. Faculty of Mechanical Engineering, Belgrade, Serbia
M. Manjgo
; Faculty of Mechanical Engineering, Mostar, BiH
J. Bernetič
; Acroni d.o.o., Jesenice, Slovenia
Z. Burzić
; Military Technical Institute, Belgrade, Serbia
M. Arsić
; IMS Institute, Belgrade, Serbia
Abstract
The accumulation of damage in the form of initiation and growth of micro-cracks is the first stage of destruction that ends when the merger microcracks form macro cracks. Cracks formed in the cycle number N =104 - 105 are the result of low cycle fatigue. From the need to evaluate low cycle fatigue life was carried out to investigate the low cycle fatigue microalloyed high-strength steel S690QL in the heat-treated.
Keywords
microalloyed steel S690QL; low cycle fatigue; cracks; strain amplitude
Hrčak ID:
126673
URI
Publication date:
1.1.2015.
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