High resolution imaging of shearing configurations of [gamma][prime] precipitates in Ni-based superalloys. [Ni-6. 5Co-7. 5Cr-5. 3Al-5. 5W-8Ta-2Mo-1. 2Ti]

Journal Article · Wed Jun 01 00:00:00 EDT 1994 · Scripta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-716X(94)90240-2· OSTI ID:7303387

Decamps, B; Condat, M ^[1]; Penisson, J M; Guetaz, L ^[2]; Morton, A J ^[3]

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1. Univ. Paris-Sud, Orsay (France). Lab. de Metallurgie Structurale
2. CEA, Grenoble (France). Dept. de Recherche Fondamentale sur la Matiere Condensee
3. CSIRO, Victoria (Australia). Division of Material Science and Technology

It has been shown that shearing of [gamma][prime] precipitates involving superlattice stacking faults is one of the important mode of deformation in Ni-based superalloys containing a high volume fraction of precipitates. The purpose of this paper is to show how high resolution observations can give pertinent and precise information about shearing configurations of precipitates involving superlattice stacking faults. As a result, together with previous weak-beam studies, a shearing mechanisms connected to the atomic structure will be proposed.

• OSTI ID: 7303387
• Journal Information: Scripta Metallurgica et Materialia; (United States), Vol. 30:11; ISSN 0956-716X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
CRYSTAL STRUCTURE
CHROMIUM ALLOYS
COBALT ALLOYS
MOLYBDENUM ALLOYS
NICKEL BASE ALLOYS
TANTALUM ALLOYS
TITANIUM ALLOYS
TUNGSTEN ALLOYS
EXPERIMENTAL DATA
HEAT RESISTING ALLOYS
MECHANICAL TESTS
ALLOYS
DATA
HEAT RESISTANT MATERIALS
INFORMATION
MATERIALS
MATERIALS TESTING
NICKEL ALLOYS
NUMERICAL DATA
TESTING
360102* - Metals & Alloys- Structure & Phase Studies