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Influence of residual stresses on hydrogen embrittlement of cold drawn wires

Elices, M. / Ruiz, J. / Atienza, J. M.

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.

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Influence of residual stresses on hydrogen embrittlement of cold drawn wires

Elices, M. / Ruiz, J. / Atienza, J. M.

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.

Influence of residual stresses on hydrogen embrittlement of cold drawn wires

Elices, M. / Ruiz, J. / Atienza, J. M.

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.

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Title:

Influence of residual stresses on hydrogen embrittlement of cold drawn wires

Contributors:

Elices, M. (author) / Ruiz, J. (author) / Atienza, J. M. (author)

Published in:

Materials and Structures ; 37

Publication date:

2004

ISSN:

DOI:

https://doi.org/10.1007/BF02481676

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Hydrogen Embrittlement , Stress Corrosion , Stress Threshold , Ferrite Phase , Residual Stress

Classification:

BKL: 56.45 Baustoffkunde / 51.30 Werkstoffprüfung, Werkstoffuntersuchung
Local classification TIB: 275/6500 / 250/6500

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