In situ observation of fatigue crack retardation in banded ferrite–pearlite microstructure due to crack branching

This paper reports the results of in situ observation of fatigue crack growth in a ferrite–pearlite steel. Stress intensity factor range (Δ K) decreasing/increasing and constant-Δ K fatigue tests have been carried out. In banded pearlite orientation, intense crack branching was observed which leads...

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Veröffentlicht in:Scripta materialia 2006-06, Vol.54 (11), p.1835-1840
Hauptverfasser: Korda, Akhmad A., Mutoh, Y., Miyashita, Y., Sadasue, T., Mannan, S.L.
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container_end_page 1840
container_issue 11
container_start_page 1835
container_title Scripta materialia
container_volume 54
creator Korda, Akhmad A.
Mutoh, Y.
Miyashita, Y.
Sadasue, T.
Mannan, S.L.
description This paper reports the results of in situ observation of fatigue crack growth in a ferrite–pearlite steel. Stress intensity factor range (Δ K) decreasing/increasing and constant-Δ K fatigue tests have been carried out. In banded pearlite orientation, intense crack branching was observed which leads to fatigue crack retardation. Crack closure during the test was monitored to understand the fatigue crack growth behaviour.
doi_str_mv 10.1016/j.scriptamat.2006.02.025
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issn 1359-6462
0956-716X
1872-8456
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source ScienceDirect Journals (5 years ago - present)
subjects Applied sciences
Crack branching
Crack propagation
Cracks
Exact sciences and technology
Fatigue
Fatigue failure
Fatigue tests
Fracture mechanics
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Microstructure
Pearlite
Pearlitic steel
Scanning electron microscopy (SEM)
Steels
title In situ observation of fatigue crack retardation in banded ferrite–pearlite microstructure due to crack branching
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