The effect of residual stresses and strain reversal on the fracture toughness of TiAl alloys

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The effect of residual stresses and strain reversal on the fracture toughness of TiAl alloys. / Appel, Fritz; Paul, Jonathan; Staron, Peter et al.
In: Materials science and engineering: A, Structural materials: properties, microstructure and processing, Vol. 709.2018, No. 2 January, 07.10.2017, p. 17-29.

Research output: Contribution to journal › Article › Research › peer-review

Harvard

Appel, F, Paul, J, Staron, P, Oehring, M, Kolednik, O, Predan, J & Fischer, F-D 2017, 'The effect of residual stresses and strain reversal on the fracture toughness of TiAl alloys', Materials science and engineering: A, Structural materials: properties, microstructure and processing, vol. 709.2018, no. 2 January, pp. 17-29. https://doi.org/10.1016/j.msea.2017.10.010

APA

Appel, F., Paul, J., Staron, P., Oehring, M., Kolednik, O., Predan, J., & Fischer, F.-D. (2017). The effect of residual stresses and strain reversal on the fracture toughness of TiAl alloys. Materials science and engineering: A, Structural materials: properties, microstructure and processing, 709.2018(2 January), 17-29. https://doi.org/10.1016/j.msea.2017.10.010

Vancouver

Appel F, Paul J, Staron P, Oehring M, Kolednik O, Predan J et al. The effect of residual stresses and strain reversal on the fracture toughness of TiAl alloys. Materials science and engineering: A, Structural materials: properties, microstructure and processing. 2017 Oct 7;709.2018(2 January):17-29. doi: 10.1016/j.msea.2017.10.010

Author

Appel, Fritz ; Paul, Jonathan ; Staron, Peter et al. / The effect of residual stresses and strain reversal on the fracture toughness of TiAl alloys. In: Materials science and engineering: A, Structural materials: properties, microstructure and processing. 2017 ; Vol. 709.2018, No. 2 January. pp. 17-29.

Bibtex - Download

@article{aeced1a3585e4dd0b9c951d4ee4ad9ad,
title = "The effect of residual stresses and strain reversal on the fracture toughness of TiAl alloys",
abstract = "The effect of local deformation on the fracture behaviour of TiAl alloys was investigated. Roller indentations impressed parallel to the crack plane significantly improve the fracture toughness. The residual strains present in the indentation zone were characterized by X-ray diffraction and modelled using finite element (FE) calculations. The experimentally observed macrostrains exhibit remarkable crystallographic anisotropies and are unequally shared between the major alloy constituents. The mechanisms behind the observed toughening have been discussed in terms of the residual strains and factors improving the crack tip plasticity. With regard to intended high-temperature applications, the temperature retention of the toughening effect was studied.",
author = "Fritz Appel and Jonathan Paul and Peter Staron and Michael Oehring and Othmar Kolednik and Jozef Predan and Franz-Dieter Fischer",
year = "2017",
month = oct,
day = "7",
doi = "10.1016/j.msea.2017.10.010",
language = "English",
volume = "709.2018",
pages = "17--29",
journal = "Materials science and engineering: A, Structural materials: properties, microstructure and processing",
issn = "0921-5093",
publisher = "Elsevier",
number = "2 January",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - The effect of residual stresses and strain reversal on the fracture toughness of TiAl alloys

AU - Appel, Fritz

AU - Paul, Jonathan

AU - Staron, Peter

AU - Oehring, Michael

AU - Kolednik, Othmar

AU - Predan, Jozef

AU - Fischer, Franz-Dieter

PY - 2017/10/7

Y1 - 2017/10/7

N2 - The effect of local deformation on the fracture behaviour of TiAl alloys was investigated. Roller indentations impressed parallel to the crack plane significantly improve the fracture toughness. The residual strains present in the indentation zone were characterized by X-ray diffraction and modelled using finite element (FE) calculations. The experimentally observed macrostrains exhibit remarkable crystallographic anisotropies and are unequally shared between the major alloy constituents. The mechanisms behind the observed toughening have been discussed in terms of the residual strains and factors improving the crack tip plasticity. With regard to intended high-temperature applications, the temperature retention of the toughening effect was studied.

AB - The effect of local deformation on the fracture behaviour of TiAl alloys was investigated. Roller indentations impressed parallel to the crack plane significantly improve the fracture toughness. The residual strains present in the indentation zone were characterized by X-ray diffraction and modelled using finite element (FE) calculations. The experimentally observed macrostrains exhibit remarkable crystallographic anisotropies and are unequally shared between the major alloy constituents. The mechanisms behind the observed toughening have been discussed in terms of the residual strains and factors improving the crack tip plasticity. With regard to intended high-temperature applications, the temperature retention of the toughening effect was studied.

U2 - 10.1016/j.msea.2017.10.010

DO - 10.1016/j.msea.2017.10.010

M3 - Article

VL - 709.2018

SP - 17

EP - 29

JO - Materials science and engineering: A, Structural materials: properties, microstructure and processing

JF - Materials science and engineering: A, Structural materials: properties, microstructure and processing

SN - 0921-5093

IS - 2 January

ER -

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