Basic Modeling and Theory of Creep of Metallic Materials

Rolf Sandström, a distinguished Professor Emeritus in Applied Materials Technology at the KTH Royal Institute of Technology in Stockholm, Sweden, has dedicated his recent research endeavors to pioneering the development of fundamental models for mechanical properties. These models, characterized by their unique absence of adjustable parameters and inspired by ab initio methodologies, offer a groundbreaking level of predictability. They enable the precise identification of operational mechanisms and facilitate the extrapolation of findings to diverse conditions.Sandström's contributions encompass a wide range of critical aspects in materials science, including dislocation creep, solid solution hardening during creep, precipitation hardening during creep, the impact of prior cold work on creep life, primary and tertiary creep, initiation and growth of creep cavities, and the development of cell and subgrain dislocation structures.

• The role of fundamental modeling.-Stationary creep.-Stress strain curves.-Primary creep.-Creep with low stress exponents.-Solid Solution Hardening.-Precipitation Hardening.-Cells and subgrains: The role of cold work.-Grain boundary sliding.-Cavitation.-The role of cavitation in creep-fatigue interaction.-Tertiary creep.- Creep ductility.-Extrapolation.