Abstract
A type 329J1 duplex stainless steel was welded by gas tungsten arc welding in argon-nitrogen gas mixture atmospheres. The penetration depth of weld metal increased with an increase of the nitrogen partial pressure of atmosphere. No porosity was observed in the weld metals. The nitrogen content and microstructure of the weld metal were studied. The nitrogen content increased and the ferrite content decreased with an increase of the nitrogen partial pressure of atmosphere. The ferrite content decreased linearly with an increase of nitrogen content. Fine chromium nitride precipitates were observed in ferrite grains of weld metals, and the amount of precipitates decreased with increases of nitrogen and ferrite contents.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
