|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Environmentally Assisted Cracking: Theory and Practice
||Factors Governing Hydrogen-Assisted Intergranular Cracking: Ni as a Model System
||Brian Somerday, Samantha K. Lawrence, Zachary Harris
|On-Site Speaker (Planned)
Intergranular environmentally assisted cracking can be manifested in a range of engineering alloy systems, including steel, nickel, aluminum, and titanium. Although intergranular cracking in hydrogen-producing environments has been extensively characterized, recent focused studies on nickel as a model system have advanced the understanding of this technologically important fracture mode. In particular, these results have clarified or amplified the factors governing hydrogen-assisted intergranular cracking such as: grain boundary structure, hydrogen-deformation interactions, alloy impurities segregated to grain boundaries, and hydrogen-induced reduction in cohesive energy. The objective of this presentation is to review a series of recent dedicated efforts to address each of these factors and their contribution to hydrogen-assisted intergranular cracking in commercially pure nickel.
||Planned: Supplemental Proceedings volume