Journal of Failure Analysis and Prevention

, Volume 15, Issue 6, pp 789–793 | Cite as

Failure Analysis of Guides Made of High-Strength AISI D2 Tool Steel

  • C. Scandian
  • T. S. Luz
  • J. M. Pardal
  • S. S. M. Tavares
Case History---Peer-Reviewed
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Abstract

Guides of high-strength steel AISI D2 are used in forming operation of steel wires in the manufacturing process of flexible pipes. The steel was quenched and tempered to achieve high wear resistance, with hardness around 59–60 HRC. However, some of these guides prematurely failed, after few months of operation. The failure analysis conducted in two guides determined that the fractures occurred by fatigue. One determinant fact that accelerated the initiation and propagation of the fracture was the high stress concentration in edges where the fillet radius was half of the specified in the project. It is also recommended to change the design project of the new guides to increase the distance between the points of high stress concentration.

Keywords

Fatigue cracking Stress concentration AISI D2 steel 

Notes

Acknowledgments

The authors acknowledge the Brazilian Research Agencies CNPq (305294/2014-8) and FAPERJ (E-26/110.750/2012) for financial support.

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Copyright information

© ASM International 2015

Authors and Affiliations

  • C. Scandian
    • 1
  • T. S. Luz
    • 1
  • J. M. Pardal
    • 2
  • S. S. M. Tavares
    • 2
  1. 1.Departamento de Engenharia MecânicaUniversidade Federal do Espírito SantoVitóriaBrazil
  2. 2.Departamento de Engenharia MecânicaUniversidade Federal FluminenseNiteróiBrazil

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