Thesis Title: Hydrogen Embrittlement of Nickel-Base Corrosion Resistant Alloys for Oil and Gas ApplicationsAbstract: Nickel-base corrosion resistant alloys (CRAs) are used for components in the oil and gas industry because of their high-strength and resistance to general corrosion processes. Field failures of CRA components can occur in deep-sea oil wells due to hydrogen embrittlement caused by the uptake of hydrogen. This project will evaluate the effect of microstructural variables on hydrogen embrittlement of CRAs to aid in the development of microstructures that possess greater hydrogen embrittlement resistance, while meeting the requirements for high strength applications. Additionally, enhanced understanding of hydrogen embrittlement mechanisms for CRAs will provide insight into the relationship between testing method and the measured hydrogen embrittlement susceptibilities and resulting fracture modes.
Degree Plan: Doctorate of Philosophy
Completion: May 2018
Steel Center Student Since: September 2013
Bio: Brian joined the steel center in September, 2013 after completing his Bachelor of Science degree in Materials Science at the University of Florida in Gainesville.
- B. Kagay, K. Findley, S. Coryell, and A.B. Nissan, "Effects of alloy 718 microstructure on hydrogen embrittlement susceptibility for oil and gas environments," Materials Science and Technology, Vol. 32, No. 7, 2016, pp. 697-707.
- B. Kagay, K. Findley, S. Coryell, and A. Nissan, "Slow Strain Rate and Rising Step Load Hydrogen Embrittlement Testing of UNS N07718", in Corrosion 2016, NACE International Houston, TX, USA, (2016), no. 7861, pp. 1-15.