Hydrogen modifies the internal friction of zone-refined nickel: specimens without hydrogen have high internal friction, due mainly to the movement of dis-locations, whereas specimens with hydrogen have low internal friction which rises after cold working and then decreases as the temperature increases. The results presented are compatible with the idea of pinning of dislocations by hydrogen.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.