ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
Inclusion Formation and Microstructure Evolution in Low Alloy Steel Welds
S. S. BabuS. A. David
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JOURNALS FREE ACCESS

2002 Volume 42 Issue 12 Pages 1344-1353

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Abstract

The paper presents an overview of research performed at Oak Ridge National Laboratory on inclusion-formation, weld-solidification, and solid-state transformations in low-alloy steel welds. The competition between oxide and nitride formation in Fe-C-Al-Mn self-shielded flux-cored arc steel welds was predicted using computational thermodynamics. Nonequilibrium austenite phase selection was monitored in a Fe-C-Al-Mn weld using an in situ time-resolved X-ray diffraction technique. The competition between acicular ferrite and bainite formation from austenite was evaluated in Fe-C-Mn steel welds containing small amounts of titanium.

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