Determining Strain/Stress Profiles in PIGMA (Pressurized Inert Gas Metal Arc) Weld between Beryllium Metal Rings by Neutron Diffraction and Comparing Results Obtained from Finite Element Analysis

摘要

The welding of beryllium has been a problem of interest to Los Alamos National Laboratory. Considerable effort has been expended in the modeling of such welds, with the intended outlook being the fabrication of a superior bond between beryllium pieces through an optimization of weld parameter, e.g., amount of pre-heat and the times needed for melting and solidification.