Mechanisms of the Early Fatigue Damage in Metallic Materials

The early stages of the fatigue damage in f.c.c. and b.c.c. metals are studied using high resolution techniques. The localization of the cyclic plastic strain results in formation persistent slip bands (PSBs) with specific dislocation structure. Characteristic surface relief is formed at locations w...

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Main Authors: Jaroslav Polak, Jiri Man, Martin Petrenec
Format: Article
Language:English
Published: University of Žilina 2006-12-01
Series:Communications
Subjects:
Online Access:https://komunikacie.uniza.sk/artkey/csl-200604-0001_mechanisms-of-the-early-fatigue-damage-in-metallic-materials.php
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author Jaroslav Polak
Jiri Man
Martin Petrenec
author_facet Jaroslav Polak
Jiri Man
Martin Petrenec
author_sort Jaroslav Polak
collection DOAJ
description The early stages of the fatigue damage in f.c.c. and b.c.c. metals are studied using high resolution techniques. The localization of the cyclic plastic strain results in formation persistent slip bands (PSBs) with specific dislocation structure. Characteristic surface relief is formed at locations where PSBs emerge on the surface. It consists of extrusions and intrusions separated by the original flat surface. Atomic force microscopy is used to study the details of the surface relief. The experimental findings are discussed in terms of the point defect model of fatigue crack initiation.
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spelling doaj.art-57c47ac75d6f458facbb5ef250b7e2be2023-04-14T06:29:49ZengUniversity of ŽilinaCommunications1335-42052585-78782006-12-01845910.26552/com.C.2006.4.5-9csl-200604-0001Mechanisms of the Early Fatigue Damage in Metallic MaterialsJaroslav Polak0Jiri Man1Martin Petrenec2Institute of Physics of Materials, Academy of Sciences of the Czech Republic, Brno, Czech RepublicInstitute of Physics of Materials, Academy of Sciences of the Czech Republic, Brno, Czech RepublicInstitute of Physics of Materials, Academy of Sciences of the Czech Republic, Brno, Czech RepublicThe early stages of the fatigue damage in f.c.c. and b.c.c. metals are studied using high resolution techniques. The localization of the cyclic plastic strain results in formation persistent slip bands (PSBs) with specific dislocation structure. Characteristic surface relief is formed at locations where PSBs emerge on the surface. It consists of extrusions and intrusions separated by the original flat surface. Atomic force microscopy is used to study the details of the surface relief. The experimental findings are discussed in terms of the point defect model of fatigue crack initiation.https://komunikacie.uniza.sk/artkey/csl-200604-0001_mechanisms-of-the-early-fatigue-damage-in-metallic-materials.phpno keywords
spellingShingle Jaroslav Polak
Jiri Man
Martin Petrenec
Mechanisms of the Early Fatigue Damage in Metallic Materials
Communications
no keywords
title Mechanisms of the Early Fatigue Damage in Metallic Materials
title_full Mechanisms of the Early Fatigue Damage in Metallic Materials
title_fullStr Mechanisms of the Early Fatigue Damage in Metallic Materials
title_full_unstemmed Mechanisms of the Early Fatigue Damage in Metallic Materials
title_short Mechanisms of the Early Fatigue Damage in Metallic Materials
title_sort mechanisms of the early fatigue damage in metallic materials
topic no keywords
url https://komunikacie.uniza.sk/artkey/csl-200604-0001_mechanisms-of-the-early-fatigue-damage-in-metallic-materials.php
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