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X-ray Fractographic Study on TiAl Alloys with Various Types of Microstructures
Published online by Cambridge University Press: 06 March 2019
Abstract
The fracture toughness test was conducted on γ + α2 two-phase TiAl alloys with lamellar, duplex and near-y structures. The x-ray fractographic technique was applied to the fracture, surfaces. The plastic zone size my was determined on the basis of the distributions of the residual stress and the half-value breadth beneath the fracture surfaces. Although the fracture mode shows microstructure dependence, ωγ is related to the fracture toughness value KIC and the yield stress σY as:
ωy=α(KIC/σY)
where α is 0.13.
- Type
- V. Residual Stress, Crystallite Size and rms Strain Determination by Diffraction Methods
- Information
- Advances in X-Ray Analysis , Volume 38: Forty-third Annual Conference on Applications of X-ray Analysis , 1994 , pp. 427 - 434
- Copyright
- Copyright © International Centre for Diffraction Data 1994