Strathprints logo
Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

Structure and properties of carbon steel to duplex stainless steel submerged arc welds

McPherson, N.A. and Chi, K. and McLean, M.S. and Baker, T.N. (2003) Structure and properties of carbon steel to duplex stainless steel submerged arc welds. Materials Science and Technology, 19 (2). pp. 219-226. ISSN 0267-0836

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

Submerged arc welding (SAW) of stainless steel to carbon steel plate can produce a number of quality problems. Lack of control of the consumable wire position within the weld preparation can lead to uneven dilution from the parent plates. In addition a relatively heavy but equal dilution from both parent plates will also create problems. In the situation of SAW of duplex stainless steel to carbon steel with a Y weld preparation, which had a 4 mm nose on it, an undesirable situation was created, in which hard zones in the weld metal were observed. In addition, it was found that a bias of the electrode wire to the carbon steel side of the weld preparation created a situation where excessively high hardness measurements occurred (> 600 HV10). Those specific regions were found to contain martensite, which was positively identified using selected area electron diffraction in a TEM investigation on thin foils taken from the high hardness region. A V weld preparation with central positioning of the consumable resulted in acceptable hardness levels in the root region combined with a skeletal ferrite microstructure. This allowed the dilution in the root area to be reduced, whilst achieving a balanced parent plate dilution in the remainder of the weld from the SAW process.

Item type: Article
ID code: 5737
Keywords: carbon steel, stainless steel, submerged arc welds, arc welds, materials science, technology, Mechanical engineering and machinery, Mechanics of Materials, Materials Science(all), Mechanical Engineering, Condensed Matter Physics
Subjects: Technology > Mechanical engineering and machinery
Department: Faculty of Engineering > Mechanical and Aerospace Engineering
Professional Services > Centre for Lifelong Learning (Non-Faculty)
Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 06 Apr 2008
    Last modified: 04 Sep 2014 15:37
    URI: http://strathprints.strath.ac.uk/id/eprint/5737

    Actions (login required)

    View Item