Effect of aluminum and nitrogen on Ti-B containing steel welds

Journal Article · Wed Oct 01 04:00:00 EDT 1997 · Welding Journal

OSTI ID:562018

Evans, G M ^[1]

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1. Oerlikon-Welding Ltd., Zurich (Switzerland)

The effect of aluminum on the microstructure and properties of C-Mn shielded metal arc welds containing titanium and boron has been studied at three levels of nitrogen, namely 65, 130 and 230 ppm. Strong interactive phenomena were encountered, with nitrogen inducing a change in acicularity and lowering the tensile properties. Aluminum contents up to 170 ppm led to the notch toughness being critically degraded by nitrogen, whereas amounts in excess of this responded beneficially to the addition of nitrogen. It is concluded that nitrogen control is a requisite for the microalloyed Ti-B-Al weld metal combination.

• OSTI ID: 562018
• Journal Information: Welding Journal, Journal Name: Welding Journal Journal Issue: 10 Vol. 76; ISSN 0043-2296; ISSN WEJUA3
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM
EXPERIMENTAL DATA
FERRITIC STEELS
MECHANICAL PROPERTIES
METALLURGICAL EFFECTS
MICROSTRUCTURE
SHIELDED METAL-ARC WELDING
WELDED JOINTS