TY - CHAP A1 - Manzoni, Anna Maria A1 - Glatzel, U. A2 - Buschow, K.H.J. A2 - Flemings, M.C. A2 - Kramer, E.J. A2 - Veyssière, P. A2 - Cahn, R.W. A2 - Ilschner, B. A2 - Mahajan, S. T1 - High-Entropy Alloys: Balancing Strength and Ductility at Room Temperature T2 - Encyclopedia of Materials: Science and Technology N2 - A new race for high performance structural materials has started since the discovery of high entropy alloys at the beginning of the 21st century. The possible combination of several elements in an, until then, unknown composition space opened the ground for discovering new materials. Solid solution strengthening remains the most prominent mechanisms that is active in this family of materials, but it is supported by all other strengthening mechanism on the path to better and better performing materials. Chemical, thermal and mechanical approaches are combined to optimize these alloys. Optimum performances can be reached by using a high number of different strengthening mechanisms, induced both by composition and processing. The most prominent with composition induced mechanism is precipitation hardening, and on the processing side it is cold working such as cold-rolling, torsion or extrusion. The contribution uses tensile test data at room temperature solely for comparison – high temperature and cryogenic data are omitted because it would lead beyond the scope of this manuscript. PB - Elsevier Inc. KW - High entropy alloys KW - Compositionally complex alloys PY - 2020 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/50575 AN - OPUS4-50575 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany