Shape and growth anomalies of [gamma][prime] precipitates in Ni-Al-Mo alloys induced by elastic interaction

Journal Article · Sat Jan 01 04:00:00 EST 1994 · Scripta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-716X(94)90349-2· OSTI ID:5363196

Sequeira, A D; Calderon, H A; Kostorz, G ^[1]

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1. Inst. fuer Angewandte Physik, Zuerich (Switzerland)

In order to explore the possibility of obtaining a system where strong elastic interactions may be observed, two model alloys were produced containing a bimodal size distribution of precipitates. One of the classes is vastly larger than the other, and the values of lattice mismatch relative to the matrix are different for the two classes. The evolution of the microstructure during the decomposition process was studied combining transmission electron microscopy as a rather local probe with small-angle neutron scattering. With these two complementary techniques a statistically reliable determination of the particle size distributions, shape and space correlations of the precipitate ensemble was possible. The influence of the elastic strains on the morphology, on the kinetics of coarsening and on the size distribution of [gamma][prime] precipitates is reported.

• OSTI ID: 5363196
• Journal Information: Scripta Metallurgica et Materialia; (United States), Journal Name: Scripta Metallurgica et Materialia; (United States) Vol. 30:1; ISSN SCRMEX; ISSN 0956-716X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
360103 -- Metals & Alloys-- Mechanical Properties
ALLOY SYSTEMS
ALLOYS
ALUMINIUM ALLOYS
DEFORMATION
ELASTICITY
MECHANICAL PROPERTIES
MOLYBDENUM ALLOYS
NICKEL ALLOYS
PHASE STUDIES
TENSILE PROPERTIES
TERNARY ALLOY SYSTEMS