An experimental study for low-cycle fatigue crack propagation of Glidcop Al-15

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Important Dates

Conference:

Apr. 22-24, 2019

Full Paper Due: Mar. 18, 2019

Abstract Due: Mar. 18, 2019

Audience Registration Due:
Apr. 22, 2019

Presentations of The Spring World Congress on Engineering and Technology (SCET 2017)

● An experimental study for low-cycle fatigue crack propagation of Glidcop Al-15
Author(s)
yin yan
Affiliation(s)
University of Science and Technology of China
KEYWORDS
experimental study, low-cycle fatigue crack propagation, Glidcop Al-15
ABSTRACT
Experiments have been conducted on an oxide dispersion strengthened (ODS) copper Glidcop Al-15 under a range of cyclic stress-amplitudes at room temperature. Special specimens containing an artificial small hole of various diameters, i.e. 150, 200 and 300 μm, were used. Propagation process of surface cracks in the various holed specimens were recorded to investigate the fatigue crack growth rate. Scanning electron microscope (SEM) was used for the observation of the fracture surface after failure specimens. The well-known Coffin-Manson low-cycle fatigue relationship was substantially shown through the results. An equation between the growth rate of the surface cracks and the stress amplitudes for Gidcop Al-15 was carried out. The experiment proved that prior fatigue history makes little influence on the subsequent crack propagation property under low-cycle condition.