HIGH AND ULTRA – HIGH CYCLE FATIGUE OF C55 HIGH GRADE CARBON STEEL

Libor Trško; Otakar Bokůvka; Michal Jambor; František Nový; Adrián Bača; Zuzana Florková

Applied Engineering Letters (Dec 2016)

HIGH AND ULTRA – HIGH CYCLE FATIGUE OF C55 HIGH GRADE CARBON STEEL

Libor Trško,
Otakar Bokůvka,
Michal Jambor,
František Nový,
Adrián Bača,
Zuzana Florková

Affiliations

Libor Trško: Research Centre of the University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovakia
Otakar Bokůvka: University of Žilina in Žilina, Faculty of Mechanical Engineering, Department of Materials Engineering, Univerzitná 8215/1, 010 26 Žilina, Slovakia
Michal Jambor: University of Žilina in Žilina, Faculty of Mechanical Engineering, Department of Materials Engineering, Univerzitná 8215/1, 010 26 Žilina, Slovakia
František Nový: University of Žilina in Žilina, Faculty of Mechanical Engineering, Department of Materials Engineering, Univerzitná 8215/1, 010 26 Žilina, Slovakia
Adrián Bača: Research Centre of the University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovakia
Zuzana Florková: Research Centre of the University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovakia

Journal volume & issue: Vol. 1, no. 4
pp. 111 – 114

Abstract

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Article provides experimental results in the field of ultra-high cycle fatigue behaviour of C55 high grade carbon steel obtained at high-frequency loading (f ≈ 20 kHz, T = 20 ± 10 °C, R = -1). The results confirm a continuous decrease of fatigue lifetime beyond the conventional fatigue limit. Fatigue fracture surfaces were characterized by surface fatigue crack initiation in both high and ultra-high cycle region, what means that that influence of microstructure defects was not significant enough to cause the sub-surface crack initiation.

Published in Applied Engineering Letters

ISSN: 2466-4677 (Print); 2466-4847 (Online)
Publisher: The Serbian Academic Center
Country of publisher: Serbia
LCC subjects: Technology: Engineering (General). Civil engineering (General)
Website: https://www.aeletters.com/

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