A Comparison of Macroscopic Fracture Surface and Crack Growth Rate of Ti-6Al-4V

Khalil Farhangdoost; S. Rahnama

doi:10.4028/www.scientific.net/AMR.97-101.687

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 97-101A Comparison of Macroscopic Fracture Surface and...

A Comparison of Macroscopic Fracture Surface and Crack Growth Rate of Ti-6Al-4V

Abstract:

A comparison between crack growth rate (da/dN) vs. effective stress intensity range factor (ΔKeff) curve behavior and microscopic and macroscopic fracture surface of commercial Ti-6Al-4V alloy are presented. Three different regimes are correlated with characteristics measured on the fracture surfaces. Three regions can be observed in which part I is rough and darker than others parts known as pre-transition, part II is smooth and light known as transition region and part III is a little darker than part II known as post-transition region. In the present investigation the correlation of fatigue crack growth rate for Ti-6Al-4V and microstructure of fracture surface has been presented.

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Periodical:

Advanced Materials Research (Volumes 97-101)

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687-690

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https://doi.org/10.4028/www.scientific.net/AMR.97-101.687

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Online since:

March 2010

Authors:

Khalil Farhangdoost, S. Rahnama

Keywords:

Fracture Surface, Microstructure, Titanium, Transition Region

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