A study of the phase decomposition of Fe-Ni-Al-Mo alloys

Conference · Mon Jan 01 04:00:00 EST 1990

DOI:https://doi.org/10.1557/PROC-186-219· OSTI ID:7010888

Miller, M K ^[1]; Hetherington, M G ^[2]; Weertman, J R; Calderon, H A ^[3]

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1. Oak Ridge National Lab., TN (USA)
2. Oxford Univ. (UK). Dept. of Materials
3. Northwestern Univ., Evanston, IL (USA). Dept. of Materials Science and Engineering

The aging of {beta}{prime} NiAl precipitates in ferritic Fe--Ni--Al alloys has been studied by transmission electron microscopy (TEM) and atom-probe field-ion microscopy (APFIM). The addition of Mo alters the lattice parameter of the phases and segregation of Mo to the interface between the matrix and the particles may alter the interfacial energy. The compositions of the matrix, precipitates and interfaces have been measured by TEM and APFIM. The results are compared. 3 refs., 5 figs.

• Research Organization: Oak Ridge National Lab., TN (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 7010888
• Report Number(s): CONF-900466-11; ON: DE90010143
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
AGING
ALLOYS
ALUMINIUM ALLOYS
CRYSTAL STRUCTURE
INTERFACES
IRON ALLOYS
IRON BASE ALLOYS
MICROSTRUCTURE
MOLYBDENUM ALLOYS
NICKEL ALLOYS
PHASE STUDIES
PRECIPITATION
SEGREGATION
SEPARATION PROCESSES