A methodology suitable for TEM local measurements of carbon concentration in retained austenite

Journal Article · Mon Sep 15 00:00:00 EDT 2008 · Materials Characterization

DOI:https://doi.org/10.1016/j.matchar.2007.11.003· OSTI ID:21140772

Kammouni, A ^[1]; Saikaly, W ^[1]; Dumont, M ^[1]; Marteau, C; Bano, X ^[2]; Charai, A ^[1]

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1. TECSEN-UMR 6122, case 261, Universite Paul Cezanne, Aix-Marseille, Faculte des Sciences de Saint-Jerome, 13397 Marseille cedex 20 (France)
2. Arcelor mediterranee, DB 26, 13776 Fos sur mer cedex (France)

Carbon concentration in retained austenite grains is of great importance determining the mechanical properties of hot-rolled TRansformation Induced Plasticity steels. Among the different techniques available to measure such concentrations, Kikuchi lines obtained in Transmission Electron Microscopy provide a relatively easy and accurate method. The major problem however is to be able to locate an austenitic grain in the observed Transmission Electron Microscopy thin foil. Focused Ion Beam in combination with Scanning Electron Microscopy was used to successfully prepare a thin foil for Transmission Electron Microscopy and carbon concentration measurements from a 700 nm retained austenite grain.

• OSTI ID: 21140772
• Journal Information: Materials Characterization, Vol. 59, Issue 9; Other Information: DOI: 10.1016/j.matchar.2007.11.003; PII: S1044-5803(07)00372-5; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 1044-5803
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AUSTENITE
AUSTENITIC STEELS
CARBON
ION BEAMS
KIKUCHI LINES
PHASE TRANSFORMATIONS
PLASTICITY
SCANNING ELECTRON MICROSCOPY
TRANSMISSION ELECTRON MICROSCOPY