Published November 25, 2006 | Version v1
Journal article Metadata-only

Analytical transmission electron microscopy study of grain boundary precipitates in an Fe-Ni-Mn maraging alloy

Creators

  • 1. Faculty of Materials Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz (Iran, Islamic Republic of)
  • 2. School of Metallurgy and Materials Engineering, Faculty of Engineering, University of Tehran, P.O. Box 14395-731, Tehran (Iran, Islamic Republic of)
  • 3. Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577 (Japan)
  • 4. Department of Materials Science and Engineering, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501 (Japan)

Description

Field-emission gun analytical transmission electron microscopy was used to study grain boundary precipitates in Fe-10Ni-7Mn (wt.%) maraging alloy after isothermal aging at 753 K. High spatial resolution energy dispersive X-ray spectroscopy was used for quantitative chemical analysis of the grain boundary precipitates. Precipitation of f.c.t. θ-NiMn intermetallic compound and reversion to f.c.c. austenite were identified at prior austenite grain boundaries after prolonged aging. Selected area electron diffraction patterns (SADPs) showed the L10 type ordering of f.c.t. θ-NiMn precipitates. The f.c.t. θ-NiMn precipitates showed higher Ni and Mn concentrations than reverted f.c.c. austenite

Additional details

Identifiers

DOI
10.1016/j.msea.2006.02.097;
PII
S0921-5093(06)00649-6;

Publishing Information

Journal Title
Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing
Journal Volume
438-440
Journal Page Range
p. 288-291
ISSN
0921-5093
CODEN
MSAPE3

Conference

Title
International conference on martensitic transformations
Acronym
ICOMAT '05
Dates
14-17 Jun 2005
Place
Shanghai (China)

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
38082302
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
AGING; AUSTENITE; ELECTRON DIFFRACTION; FIELD EMISSION; GRAIN BOUNDARIES; INTERMETALLIC COMPOUNDS; PRECIPITATION; QUANTITATIVE CHEMICAL ANALYSIS; SPATIAL RESOLUTION; TRANSMISSION ELECTRON MICROSCOPY; X-RAY SPECTROSCOPY
Descriptors DEC
ALLOYS; CARBON ADDITIONS; CHEMICAL ANALYSIS; COHERENT SCATTERING; DIFFRACTION; ELECTRON MICROSCOPY; EMISSION; IRON ALLOYS; MICROSCOPY; MICROSTRUCTURE; RESOLUTION; SCATTERING; SEPARATION PROCESSES; SPECTROSCOPY; TRANSITION ELEMENT ALLOYS

Optional Information

Copyright
Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.