Abstract
It is well known that microstructure plays a predominant role in determining material behavior. Materials engineers therefore seek to control microstructure through processing. Processing studies have traditionally focused on optimizing microstructural characteristics with the intent of producing a uniform microstructure throughout the material. Increasing microstructural uniformity has long been considered a fruitful means of improving properties. In contrast, FGMs are produced containing deliberate spatial nonuniformities in their microstructures. By treating microstructure as a variable that is dependent on position, different material characteristics can be incorporated in a single component. Such a component can be considered a materials system integrated at the microstructural level to achieve optimum performance in a specific application. This is what distinguishes FGMs from other materials.
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Miyamoto, Y., Kaysser, W.A., Rabin, B.H., Kawasaki, A., Ford, R.G. (1999). Graded Microstructures. In: Miyamoto, Y., Kaysser, W.A., Rabin, B.H., Kawasaki, A., Ford, R.G. (eds) Functionally Graded Materials. Materials Technology Series, vol 5. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-5301-4_3
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DOI: https://doi.org/10.1007/978-1-4615-5301-4_3
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