The ceramic base materials made superplastic to date are based on the principles developed for metallic alloys and claims of observations of both types of superplasticity have been made for.
Superplasticity in metals and ceramics pdf.
Superplasticity 6 1 introduction superplasticity is the ability of a polycrystalline material to exhibit in a generally isotropic manner very high tensile elongations prior to failure t 0 5t m 406.
Superplasticity at very high strain rates i e approximatel y 0 1 1 s 1 is an area of strong emphasis that is expecte d to lead to increased applications of superplastic forming technology.
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Main superplasticity in metals and ceramics cambridge solid state science series superplasticity in metals and ceramics cambridge solid state science series t.
This book describes advances in the field of superplasticity.
This is the ability of certain materials to undergo very large tensile strains a phenomenon that has increasing commercial applications but also presents a fascinating scientific.
Historically there has been no universally accepted definition for super plasticity.
Superplasticity is reported in a wide range of materials for example metals and alloys including dispersion strengthened alloys ceramics metals as well as ceramics based composites nanostructured materials bulk metallic glasses and geological materials.
The observations of superplasticity in metals including aluminium magnesium iron titanium and nickel ceramics including monoliths and composites intermetallics including iron nickel and titanium base and laminates are thoroughly described.
Since then superplasticity has been extensively studied in metals.
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Ity in metals ceramics intermetallics and composites.
The first observations of this phenomenon were made as early as 1912 407.
A knowledge of fundamental issues in ceramic superplasticity has advanced to the stage that the technological application of superplastic deformation and specifically biaxial gas pressure deformation has now been demonstrated 74 75.