Fatigue Crack Growth-Microstructural Relationship of Ti-6Al-4V

Abstract

In a previous effort the fatigue crack growth rate characteristics of Ti-6A-4V were obtained from two forgings and compared to reference data in the literature. Both the test data and the reference data were from forgings identified as being in the beta-quenched condition but the fatigue crack growth rates were different. This project provided an understanding of the cause of the difference of examining the microstructure and developing additional fatigue crack growth rate (FCGR) data for the six inch thick forgings used to develop the test data. The reference data was developed on two inch thick forgings. Titanium, Ti-6A-4V, Beta-quenched, Beta -annealed, Fatigue crack growth, Microstructure. (jes)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1988
Accession Number
ADA208107

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  • Steven R. Thompson

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  • Wright Laboratory

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