An Improved Model for Predicting Fatigue Crack Initiation Life of GH4169

Abstract:

Article Preview

An improved model has been developed to predict fatigue crack initiation life using the criterion of minimizing the Gibbs free energy change considering plastic energy. The prediction process was described in this paper and used to predict the fatigue crack initiation life of notched GH4169 superalloy rolled bar at room temperature and 450°C. The results are acceptable for fatigue crack initiation life prediction in engineering experience and show that the improved model for predicting fatigue crack initiation life as an extension of the concept of minimizing the Gibbs free energy change considering plastic energy is adoptable to some superplastic materials such as GH4169.

Info:

Periodical:

Edited by:

Honghua Tan

Pages:

468-473

DOI:

10.4028/www.scientific.net/AMM.29-32.468

Citation:

D. Lei et al., "An Improved Model for Predicting Fatigue Crack Initiation Life of GH4169", Applied Mechanics and Materials, Vols. 29-32, pp. 468-473, 2010

Online since:

August 2010

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.