Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Miscellanea Vol. 11, No. 41 (2017)

Influence of forging conditions on the fatigue mechanisms of low alloy steels: a 3D study

Author and affiliation details
  • Pablo Lorenzino Corresponding author nomail@nomail.com
  • Jean-Yves Buffiere
  • Catherine Verdu
DOI
10.3221/IGF-ESIS.41.26
Pages
Pages 191-196
Published
Published inVol. 11, No. 41 (2017)Go to the issue

Abstract

The influence of forging conditions on the propagation of physically small fatigue cracks has been studied for two high strength steels. Two surface conditions were produced after the forging process. The subsurface microstructure of the materials has been characterized by EBSD. Small samples extracted from the original specimens were used to perform in situ fatigue tests monitored by high resolution synchrotron X-ray tomography. Fatigue cracks were initiated from an artificial defect (100 ?m wide x 50 ?m deep) introduced in the forging skin by laser machining. 3D images of the initiation and growth of those physically small fatigue cracks have been obtained. It was found that the presence of a shot-blasted skin containing a hardness and microstructure gradient influences the 3D crack shape during propagation in comparison with the materials without material properties gradient. The 3D crack shapes are rationalized in terms of crack closure effects induced by the forging processes, close to the surface.

Keywords

Article history

  1. ReceivedUntil the next stage: 0 days
  2. AcceptedUntil the next stage: 1 day
  3. Published

How to cite

APA

Lorenzino, P., Buffiere, J.-Y., & Verdu, C. (2017). Influence of forging conditions on the fatigue mechanisms of low alloy steels: a 3D study. Fracture and Structural Integrity, 11(41), Pages 191–196. https://doi.org/10.3221/IGF-ESIS.41.26

IEEE

P. Lorenzino, J.-Y. Buffiere, and C. Verdu, “Influence of forging conditions on the fatigue mechanisms of low alloy steels: a 3D study,” Fracture and Structural Integrity, vol. 11, no. 41, pp. Pages 191–196, 2017, doi: 10.3221/IGF-ESIS.41.26.

MLA

Lorenzino, Pablo, et al. “Influence of forging conditions on the fatigue mechanisms of low alloy steels: a 3D study.” Fracture and Structural Integrity, vol. 11, no. 41, 2017, pp. Pages 191–196. https://doi.org/10.3221/IGF-ESIS.41.26.

Chicago

Lorenzino, Pablo, Jean-Yves Buffiere, and Catherine Verdu. 2017. “Influence of forging conditions on the fatigue mechanisms of low alloy steels: a 3D study.” Fracture and Structural Integrity 11 (41): Pages 191–196. https://doi.org/10.3221/IGF-ESIS.41.26.

Harvard

Lorenzino, P., Buffiere, J.Y. and Verdu, C. (2017) ‘Influence of forging conditions on the fatigue mechanisms of low alloy steels: a 3D study’, Fracture and Structural Integrity, 11(41), pp. Pages 191–196. doi: 10.3221/IGF-ESIS.41.26.

Vancouver

Lorenzino P, Buffiere JY, Verdu C. Influence of forging conditions on the fatigue mechanisms of low alloy steels: a 3D study. Fracture and Structural Integrity. 2017;11(41):Pages 191-196. doi:10.3221/IGF-ESIS.41.26

BibTeX

@article{lorenzino2017, author = {Lorenzino, Pablo and Buffiere, Jean-Yves and Verdu, Catherine}, title = {Influence of forging conditions on the fatigue mechanisms of low alloy steels: a 3D study}, journal = {Fracture and Structural Integrity}, year = {2017}, volume = {11}, number = {41}, pages = {Pages 191--196}, doi = {10.3221/IGF-ESIS.41.26}, url = {https://doi.org/10.3221/IGF-ESIS.41.26}, issn = {1971-8993} }

RIS

TY - JOUR AU - Lorenzino, Pablo AU - Buffiere, Jean-Yves AU - Verdu, Catherine TI - Influence of forging conditions on the fatigue mechanisms of low alloy steels: a 3D study JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2017 DA - 2017/06/28 VL - 11 IS - 41 SP - Pages 191 EP - 196 DO - 10.3221/IGF-ESIS.41.26 UR - https://doi.org/10.3221/IGF-ESIS.41.26 SN - 1971-8993 ER -

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