Effects of Inclusions and Microstructures on Impact Energy of High Heat-Input Submerged-Arc-Weld Metals

Effects of Inclusions and Microstructures on Impact Energy of High Heat-Input Submerged-Arc-Weld Metals

Submerged-arc-weld metal made with variations of heat-input and consumables were examined to study the inclusions and their effects on the Charpy impact energy of the weld metal as a measure of the toughness. From the analysis, inclusions, of which diameters were smaller than 2 μm, seemed to be effe...

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Veröffentlicht in:Journal of engineering materials and technology 2005-04, Vol.127 (2), p.204-213
Hauptverfasser: Kim, Beomjoo, Uhm, Sangho, Lee, Changhee, Lee, Jongbong, An, Youngho
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Metals. Metallurgy
Physics
Solid mechanics
Structural and continuum mechanics
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Zusammenfassung:Submerged-arc-weld metal made with variations of heat-input and consumables were examined to study the inclusions and their effects on the Charpy impact energy of the weld metal as a measure of the toughness. From the analysis, inclusions, of which diameters were smaller than 2 μm, seemed to be effective for acicular ferrite nucleation and the fraction of acicular ferrite was in proportion to the number density of inclusions
ISSN:0094-4289
1528-8889
DOI:10.1115/1.1857933