Three-dimensional analysis of coalesced bainite using focused ion beam tomography

Journal Article · Tue Jul 15 00:00:00 EDT 2008 · Materials Characterization

DOI:https://doi.org/10.1016/j.matchar.2007.07.011· OSTI ID:21140741

Karlsson, L ^[1]; Bhadeshia, H K.D.H. ^[2]; Thuvander, Mattias ^[1]

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1. ESAB AB, Herkulesgatan 72, Box 8004, SE-402 77 Goteborg (Sweden)
2. Materials Science and Metallurgy, University of Cambridge, Pembroke Street, Cambridge CB2 3QZ (United Kingdom)

A coarse constituent resulting from the coalescence of platelets of bainite has recently been discovered in high-strength steel weld metals. The three-dimensional shape of coalesced bainite has been investigated by serial sectioning using a focused ion beam milling facility supplemented with observations made using field emission gun scanning electron microscopy and light optical microscopy. A compilation of the sections into a three-dimensional model revealed the shape of the coalesced bainite grain to be lath-like with a length in excess of 20 {mu}m.

• OSTI ID: 21140741
• Journal Information: Materials Characterization, Vol. 59, Issue 7; Other Information: DOI: 10.1016/j.matchar.2007.07.011; PII: S1044-5803(07)00258-6; 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
BAINITE
FIELD EMISSION
ION BEAMS
OPTICAL MICROSCOPY
SCANNING ELECTRON MICROSCOPY
STEELS
THREE-DIMENSIONAL CALCULATIONS
TOMOGRAPHY
WELDED JOINTS