Pressure vessel for tensile testing in high-pressure gases at elevated temperatures

Rev Sci Instrum. 1978 Jan;49(1):50. doi: 10.1063/1.1135250.

Abstract

A pressure vessel for tensile testing has been developed to measure tensile stress in high-pressure up to 50.5 MPa at elevated temperatures up to 773 K. The vessel is designed to facilitate the measurement of the actual tensile load on the specimen by an external load cell without the influence of axial stress due to high pressure in the vessel and the effect of friction at sliding seals where the load rod enters the vessel. Application of the vessel to tensile testing of a steel in hydrogen atmosphere is briefly described.