Evaluation of fatigue crack growth behavior in Nb-H alloys was done using the Unified Approach to Fatigue Crack Growth developed earlier. It shows that the mechanism of hydrogen embrittlement changes with crack growth rate, load ratio and hydrogen concentration. The analysis provides an example where the changes in the governing mechanisms can be easily followed using the ΔK* vs Kmax* trajectory map discussed in the Unified Approach. Published by Elsevier Science Ltd.

R. Sreenivasan

Cracks

Environmental impact

Hydrogen embrittlement

Niobium alloys

Fatigue damage

Load ratio effects

Fatigue of materials

IIT Madras is a public technical and research university located in Chennai, Tamil Nadu. Founded in 1959, it is recognised as an Institute of National Importance.

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IIT Madras

International Journal of Fatigue

Analysis of fatigue crack growth behavior in niobium-hydrogen alloys using the unified approach to fatigue damage

Journal	International Journal of Fatigue
ISSN	01421123
Open Access	No