Amorphization and nanostructure synthesis in Al alloys

摘要: The recent innovations in metallic glasses have led to new alloy classes that may be vitrified and a re-examination of the commonly used criteria for glass formation stability. In one case large, bulk volumes slowly cooled glassy state signifies nucleation-controlled synthesis. other important is represented by Al Fe based marginal formers been synthesized under growth controlled kinetic conditions mainly rapid solidification processes. With forming alloys termination amorphous upon heating often characterized primary crystallization reaction yields high number density range 1021–1022 m−3 nanocrystals (15–20 nm diameter) dispersed within residual matrix. At same time results from alternate synthesis strategies involving intense cold rolling reveal can bypassed during deformation alloying elemental multilayers or enhanced bonding ribbons. kinetics analysis behavior provides insight into origin nanocrystal matrix microstructures, influence heterogeneous catalysts an effective assessment overall stability are essential microstructure control.