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Effect of Equal Channel Angular Pressing on the Fracture Behavior of Commercially Pure Titanium

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An Erratum to this article was published on 28 January 2010

This article focuses on the effect of equal channel angular pressing (ECAP) on the fracture behavior of a commercially pure (CP) Ti. Standard mechanical tensile and fracture tests are performed at room temperature and 250 °C to determine the tensile mechanical properties and the J-∆a curves. The effect of temperature on the fracture properties, namely, the fracture toughness, the slope of the J-∆a curves, the total crack growth resistance, and the stability of the crack propagation before and after ECAP is investigated. Quantitative analysis of the fracture surfaces is performed using an automatic fracture surface analysis system. The energy required to form the fracture surface is estimated. The yield stress and the ultimate tensile stress are significantly increased by ECAP. However, similar to the case of other strengthening procedures, the fracture toughness decreases after ECAP.

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Acknowledgments

The authors acknowledge gratefully the financial support of this work by the Austrian Fonds zur Förderung der wissenschaftlichen Forschung under Project No. S10402-N16.

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Authors and Affiliations

  1. Instituto Madrileño de Estudios Avanzados de Materiales (IMDEA-Materiales), 28040, Madrid, Spain

    I. Sabirov (Researcher)

  2. Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, 450000, Ufa, Russian Federation

    R.Z. Valiev (Director) & I.P. Semenova (Senior Researcher)

  3. Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, 8700, Leoben, Austria

    R. Pippan (Senior Researcher and Vice Director)

Authors
  1. I. Sabirov
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  2. R.Z. Valiev
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  3. I.P. Semenova
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  4. R. Pippan
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Corresponding author

Correspondence to I. Sabirov.

Additional information

Manuscript submitted July 15, 2009.

An erratum to this article can be found at http://dx.doi.org/10.1007/s11661-010-0178-6

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Sabirov, I., Valiev, R., Semenova, I. et al. Effect of Equal Channel Angular Pressing on the Fracture Behavior of Commercially Pure Titanium. Metall Mater Trans A 41, 727–733 (2010). https://doi.org/10.1007/s11661-009-0111-z

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