Abstract
Changes in dimensions, mechanical properties and chemical composition due to irradiation by different particles at elevated temperatures are compared on the basis of atomic displacements derived from low temperature resistivity damage rates. The available data on void swelling, irradiation creep and room temperature hardening correlate reasonably well on this basis. The correlation seems poor for hardening at high temperatures and even worse for fracture properties and chemical effects (solute segregation, precipitate growth). The results are discussed in terms of the basic damage processes.