Investigation of the dwell period's influence on the fatigue crack growth of a titanium alloy

P. Lefranc; C. Sarrazin-Baudoux; V. Doquet; J. Petit

doi:10.1016/j.scriptamat.2008.09.033

Investigation of the dwell period's influence on the fatigue crack growth of a titanium alloy

P. Lefranc
, C. Sarrazin-Baudoux
, V. Doquet
, J. Petit

CNRS
Department of Mechanics École Polytechnique
Snecma Villaroche

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

The dwell effect, which is known to induce a reduction in the fatigue life of titanium alloys at room temperature, is related to early crack initiation. The present results support faster crack growth rates. The governing mechanisms are identified by mean of scanning electron microfractographic observations. The potential role of the atmosphere is examined through comparative testing performed in air and in high vacuum in order to distinguish the specific contributions of cold creep and environment assistance.

langue originale	Anglais
Pages (de - à)	281-284
Nombre de pages	4
journal	Scripta Materialia
Volume	60
Numéro de publication	5
Les DOIs	https://doi.org/10.1016/j.scriptamat.2008.09.033
état	Publié - 1 mars 2009
Modification externe	Oui

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10.1016/j.scriptamat.2008.09.033

Contient cette citation

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title = "Investigation of the dwell period's influence on the fatigue crack growth of a titanium alloy",

abstract = "The dwell effect, which is known to induce a reduction in the fatigue life of titanium alloys at room temperature, is related to early crack initiation. The present results support faster crack growth rates. The governing mechanisms are identified by mean of scanning electron microfractographic observations. The potential role of the atmosphere is examined through comparative testing performed in air and in high vacuum in order to distinguish the specific contributions of cold creep and environment assistance.",

keywords = "Crack growth, Dwell fatigue, Fatigue, Titanium alloy",

author = "P. Lefranc and C. Sarrazin-Baudoux and V. Doquet and J. Petit",

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AU - Lefranc, P.

AU - Sarrazin-Baudoux, C.

AU - Doquet, V.

AU - Petit, J.

PY - 2009/3/1

Y1 - 2009/3/1

N2 - The dwell effect, which is known to induce a reduction in the fatigue life of titanium alloys at room temperature, is related to early crack initiation. The present results support faster crack growth rates. The governing mechanisms are identified by mean of scanning electron microfractographic observations. The potential role of the atmosphere is examined through comparative testing performed in air and in high vacuum in order to distinguish the specific contributions of cold creep and environment assistance.

AB - The dwell effect, which is known to induce a reduction in the fatigue life of titanium alloys at room temperature, is related to early crack initiation. The present results support faster crack growth rates. The governing mechanisms are identified by mean of scanning electron microfractographic observations. The potential role of the atmosphere is examined through comparative testing performed in air and in high vacuum in order to distinguish the specific contributions of cold creep and environment assistance.

KW - Crack growth

KW - Dwell fatigue

KW - Fatigue

KW - Titanium alloy

U2 - 10.1016/j.scriptamat.2008.09.033

DO - 10.1016/j.scriptamat.2008.09.033

M3 - Article

AN - SCOPUS:57949105456

SN - 1359-6462

VL - 60

SP - 281

EP - 284

JO - Scripta Materialia

JF - Scripta Materialia

IS - 5

ER -

Investigation of the dwell period's influence on the fatigue crack growth of a titanium alloy

Résumé

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