|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Material Design Approaches and Experiences IV
||Combinatorial Approach for Precipitation Strengthening Alloy Design
||Alexis Deschamps, De Geuser Frederic
|On-Site Speaker (Planned)
Developing precipitation-strengthening alloys requires increasingly the optimization of alloy chemistry in multi-component systems. Precipitation kinetics depends in a complex way on alloy chemistry so that reaching an optimum in a property linked to the precipitate microstructure (such as strength, strain hardening or ductility) is a complex task. In this contribution we will present a methodology involving the fabrication of compositionally gradient alloys and their in-situ characterization during heat treatments using combined time and spatially resolved small-angle scattering measurements. We will show how maps of precipitation kinetics can be obtained in composition space and related to precipitation models, opening the way for rational alloy design. Two case studies will be presented: a model system as a proof-of-concept is precipitation of Co in Cu, and a more applied study evaluating the effect of Mg content on precipitation kinetics in an Al-Cu-Li alloy.
||Planned: TMS Journal: JOM