Hahn-Meitner Institut. Arbeitsgruppe Hochbeanspruchte Metallische Werkstoffe. Progress report no. 4, 1989-1992

The present report comprises work performed during the fourth quadrennial period since the R and D program 'Radiation Damage in Solids' was established at the Hahn-Meitner-Institut, Berlin. When the new activities on high temperature properties of superalloys became a significant part of the work the title of the program was changed in 1986 to 'Highly Stressed Metallic Materials'. This report deals with the following main topics: 1) Microstructural evaluation under irradiation (3 papers); 2) Thermal and radiation-enhanced diffusion (5 papers); 3) Diffusion-controlled alloy decomposition (3 papers); 4) Phase stability under irradiation (11 papers); 5) Defect reactions and kinetics (4 papers); 6) Structural analysis (6 papers); 7) Deformation in Ni-base superalloys (7 papers); 8) Residual stress-analysis (4 papers); 9) Materials preparation and new experimental facilities (3 papers). The papers are written in summary form. (orig.)Available from TIB Hannover: ZA 4746(501) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman