The Micro Crack Nucleation Rule and Fracture Behavior of Titanium Aluminum Alloy

Xiang Bin Yi; Zhi Yuan Rui; Rui Cheng Feng; Chang Feng Yan; Yan Rui Zuo

doi:10.4028/www.scientific.net/AMM.496-500.396

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 496-500The Micro Crack Nucleation Rule and Fracture...

The Micro Crack Nucleation Rule and Fracture Behavior of Titanium Aluminum Alloy

Abstract:

Study on tensile fracture behavior of TiAl alloy by means of the macro fracture theory and micro dislocation block theory. A quantitative analysis method of micro crack nucleation and crack mechanism for TiAl alloy is performed with the help of the dislocation distribution model, and is based on the strain energy density theory and criterion, a crack criterion of TiAl alloy instability is established. The experimental results confirmed that the dislocation model and S criterion on tensile fracture behavior of TiAl alloys are effective.

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Applied Mechanics and Materials (Volumes 496-500)

Pages:

396-400

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.496-500.396

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Online since:

January 2014

Authors:

Xiang Bin Yi, Zhi Yuan Rui, Rui Cheng Feng, Chang Feng Yan, Yan Rui Zuo

Keywords:

Crack Nucleation, Dislocation Model, Fracture Criterion, Titanium Aluminum Alloy

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