title: Dilatometer for the in situ observation of high-temperature, high-pressure hydrogen attack.
abstract: A differential dilatometer capable of detecting volume changes of 1 part in 10(5) in specimens exposed to a hydrogen atmosphere at 6.2 MPa and 500 degrees C is described. The swelling of an alloy under hydrogen-attack conditions can be studied over a wide range of hydrogen pressures and temperatures by use of a single specimen.
authors.affiliation: Material Science Division, Argonne National Laboratory, Argonne, Illinois 60439.
authors.forename: A A
authors.initials: AA
authors.lastname: Sagüés