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

https://hrcak.srce.hr/126673

Publication date:

1.1.2015.

Visits: 2.063 *