Alloy development using modern tools
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Markus Rettenmayr
Abstract
The development of new alloys has always been a prominent field in materials science. For modern materials, the conditions that need to be considered are manifold. The properties of a material depend firstly on its composition, but also on the processing during its production and on the initial microstructure. In view of the complexity of modern materials and the numerous possibilities to influence their properties it is necessary to use a variety of tools for their optimization. Theoretical and empirical approaches should be combined in order to achieve a goal in a reasonable amount of time. On the theoretical side there is the calculation of type and amount of phases considering thermodynamic equilibrium, or in more sophisticated cases the combination of thermodynamic and kinetic calculations. If the necessary data are not available, some entities can also be estimated. On the experimental side all of the available methods for producing and analyzing metal alloys should be applied wherever necessary. The goal is a more profound understanding of microstructural evolution so that it can be influenced specifically and alloy candidates are not excluded prematurely if the properties of an alloy are not satisfactory after a first unsuccessful attempt. Examples that are presented here are development steps for Pb-free solder alloys (Bi and Zn based alloys) and the interrelation of alloy and processing development for an Al – Fe – Si alloy.
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© 2009, Carl Hanser Verlag, München
Artikel in diesem Heft
- Contents
- Contents
- Feature
- Materials constitution and computational thermodynamics in the context of 100 years of IJMR – Zeitschrift für Metallkunde
- Upgrading CALPHAD to microstructure simulation: the phase-field method
- Prediction, determination and validation of phase diagrams via the global study of energy landscapes
- Alloy development using modern tools
- Phase equilibria and thermal analysis in the Fe–Mn–Ni system
- Integrated approach to thermodynamics, phase relations, liquid densities and solidification microstructures in the Al–Bi–Cu system
- Formation of clathrates Ba–M–Ge(M = Mn, Fe, Co)
- New paradigm of a metastable phase diagram presenting structural transformations induced by annealing of Si–C–N amorphous ceramics derived from polymer precursors
- Basic
- Thermodynamic assessment of the Ce–Si, Y–Si, Mg–Ce–Si and Mg–Y–Si systems
- Thermodynamic re-assessment of the Ti–Al–Nb system
- Effect of varying oxygen partial pressure on the properties of reactively evaporated zinc aluminate thin films
- Applied
- Matrix induced synthesis of Y3Al5O12: Ce phosphor through the Pechini method
- Microstructure and room temperature compressive properties of holmium doped DS NiAl-Cr(Mo)-Hf eutectic alloy
- Evaporation mechanism of aluminum during electron beam cold hearth melting of Ti64 alloy
- 560°C isothermal section of the Zn–Fe–Ni–Si quaternary system at the zinc-rich corner
- DGM News
- Personal
Artikel in diesem Heft
- Contents
- Contents
- Feature
- Materials constitution and computational thermodynamics in the context of 100 years of IJMR – Zeitschrift für Metallkunde
- Upgrading CALPHAD to microstructure simulation: the phase-field method
- Prediction, determination and validation of phase diagrams via the global study of energy landscapes
- Alloy development using modern tools
- Phase equilibria and thermal analysis in the Fe–Mn–Ni system
- Integrated approach to thermodynamics, phase relations, liquid densities and solidification microstructures in the Al–Bi–Cu system
- Formation of clathrates Ba–M–Ge(M = Mn, Fe, Co)
- New paradigm of a metastable phase diagram presenting structural transformations induced by annealing of Si–C–N amorphous ceramics derived from polymer precursors
- Basic
- Thermodynamic assessment of the Ce–Si, Y–Si, Mg–Ce–Si and Mg–Y–Si systems
- Thermodynamic re-assessment of the Ti–Al–Nb system
- Effect of varying oxygen partial pressure on the properties of reactively evaporated zinc aluminate thin films
- Applied
- Matrix induced synthesis of Y3Al5O12: Ce phosphor through the Pechini method
- Microstructure and room temperature compressive properties of holmium doped DS NiAl-Cr(Mo)-Hf eutectic alloy
- Evaporation mechanism of aluminum during electron beam cold hearth melting of Ti64 alloy
- 560°C isothermal section of the Zn–Fe–Ni–Si quaternary system at the zinc-rich corner
- DGM News
- Personal
