NDLI: Influence of residual stresses on hydrogen embrittlement of cold drawn wires

Content Provider	Springer Nature Link
Author	Elices, M. Ruiz, J. Atienza, J. M.
Copyright Year	2004
Abstract	The purpose of this paper is to investigate the influence of residual stresses, due to cold-drawing, on the hydrogen embrittlement susceptibility of pearlitic wires used for prestressing concrete. Surface residual stresses were measured by X-ray diffraction and a 3D finite element model was used to simulate the drawing process. Hydrogen susceptibility was evaluated through rupture times in NH$_{4}$SCN tests. The presence of residual stresses may help in explaining the scatter in times to rupture, the disappearance of a stress threshold, the differences in times to rupture of steel wires with the same microstructure, surface quality and mechanical properties, or the saturation in rupture time above certain values of the testing load.Le but de cet article est l'analyse de l'influence des contraintes résiduelles, produites par le tréfilage, sur la sensibilité à la fragilisation par l'hydrogène des câbles d'acier perlitiques utilisés pour le béton précontraint. Les contraintes résiduelles en surface ont été mesurées par diffraction des rayons X et le processus de tréfilage a été simulé avec un code d'éléments finis en 3D. La présence des tensions résiduelles peut aider à expliquer la dispersion des temps de rupture, la disparition d'un seuil de contrainte, les différents temps de rupture des câbles en acier avec la même microstructure, qualité superficielle et propriétés mécaniques, ou même la saturation du temps de rupture en dessous de certaines valuers de la charge de l'essai.
Starting Page	305
Ending Page	310
Page Count	6
File Format	PDF
ISSN	13595997
Journal	Materials and Structures
Volume Number	37
Issue Number	5
e-ISSN	18716873
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2004-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Theoretical and Applied Mechanics Structural Mechanics Mechanical Engineering Operating Procedures, Materials Treatment Civil Engineering Building Materials
Content Type	Text
Resource Type	Article
Subject	Building and Construction Mechanics of Materials Materials Science Civil and Structural Engineering

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