Room Temperature Tensile Ductility in Polycrystalline B2 NiAl

Room Temperature Tensile Ductility in Polycrystalline B2 NiAl

It is possible to obtain significant tensile ductility in nominally stoichiometric polycrystalline B2 NiAl at room temperature and 473K. This result has been obtained from material which contains low levels of carbon and oxygen and which has been cast and extruded at low temperature. The composition...

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Bibliographische Detailangaben
Veröffentlicht in:Scr. Metall.; (United States) 1989-01, Vol.23 (1), p.7-12
Hauptverfasser: Hahn, K H, Vedula, K
Format: Artikel
Sprache:eng
Schlagworte:
360102 - Metals & Alloys- Structure & Phase Studies
360103 - Metals & Alloys- Mechanical Properties
360104 - Metals & Alloys- Physical Properties
ALLOYS
ALUMINIUM ALLOYS
ANISOTROPY
CRYSTAL STRUCTURE
CRYSTALS
DEFORMATION
DUCTILITY
FRACTURE PROPERTIES
HIGH TEMPERATURE
LOW TEMPERATURE
MATERIALS SCIENCE
MECHANICAL PROPERTIES
NICKEL ALLOYS
POLYCRYSTALS
STOICHIOMETRY
TENSILE PROPERTIES
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Zusammenfassung:It is possible to obtain significant tensile ductility in nominally stoichiometric polycrystalline B2 NiAl at room temperature and 473K. This result has been obtained from material which contains low levels of carbon and oxygen and which has been cast and extruded at low temperature. The compositions of materials used were Ni--47 at.% Al, Ni--49 at.% Al, Ni--50 at.% Al, and Ni--51 at.% Al. A comparison of the results obtained and those obtained by Rozner and Wasilewski shows very close agreement for the stoichiometric alloy and for the alloys with deviations from stoichiometry. 14 ref.--A.R.
ISSN:0036-9748
DOI:10.1016/0036-9748(89)90083-5