Effect of pressure and shielding gas on the microstructure of hyperbaric metal cored GMAW welds down to 111 bar
Abstract
The microstructural evolution of hyperbaric C-Mn weld metals was studied by means of bead-on-plate welds deposit with GMAW process using a commercial metal cored wire. The welding was carried out in the flat position in the range of 51 bar to 111 bar with He+ CO{sub 2} as shielding gas, which CO{sub 2} content varied from 0.1% to 0.8 %. The microstructures were quantitatively analyzed by optical microscopy to evaluate the amount of constituents according to the IIW/IIS terminology. The results showed that all weld metals presented great amounts of acicular ferrite and a stronger influence of pressure on microstructure compared to the influence of the shielding gas.
- Authors:
-
- CEFET, Rio de Janeiro (Brazil). Mechanical Engineering Dept.
- Petrobras/CENPES, Rio de Janeiro (Brazil)
- GKSS Forschungszentrum Geesthacht GmbH (Germany)
- Publication Date:
- OSTI Identifier:
- 205443
- Report Number(s):
- CONF-950695-
ISBN 0-7918-1309-6; TRN: IM9615%%223
- Resource Type:
- Conference
- Resource Relation:
- Conference: International conference on offshore mechanics and arctic engineering, Copenhagen (Denmark), 18-22 Jun 1995; Other Information: PBD: 1995; Related Information: Is Part Of OMAE 1995 -- Proceedings of the 14. international conference on offshore mechanics and arctic engineering. Volume 3: Materials engineering; Salama, M.M. [ed.] [Conoco, Inc., Ponca City, OK (United States)]; Toyoda, Masao [ed.] [Osaka Univ., Suita, Osaka (Japan)]; Liu, S. [ed.] [Colorado School of Mines, Golden, CO (United States)]; Santos, J.F. dos; Kocak, M. [eds.] [GKSS, Geesthacht (Germany)]; Patterson, E.A. [ed.] [Univ. of Sheffield (United Kingdom)]; Berge, S. [ed.] [Univ. of Trondheim (Norway)]; Stacey, A. [ed.] [Health and Safety Executive, London (United Kingdom). Offshore Safety Div.]; PB: 600 p.
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; WELDED JOINTS; MICROSTRUCTURE; OFFSHORE PLATFORMS; STEELS; SHIELDED METAL-ARC WELDING; PIPELINES; CHEMICAL COMPOSITION; UNDERWATER OPERATIONS; REMOTE CONTROL; RESEARCH PROGRAMS; MATERIALS TESTING
Citation Formats
Jorge, J C.F., Santos, V.R. dos, and Santos, J.F. dos. Effect of pressure and shielding gas on the microstructure of hyperbaric metal cored GMAW welds down to 111 bar. United States: N. p., 1995.
Web.
Jorge, J C.F., Santos, V.R. dos, & Santos, J.F. dos. Effect of pressure and shielding gas on the microstructure of hyperbaric metal cored GMAW welds down to 111 bar. United States.
Jorge, J C.F., Santos, V.R. dos, and Santos, J.F. dos. 1995.
"Effect of pressure and shielding gas on the microstructure of hyperbaric metal cored GMAW welds down to 111 bar". United States.
@article{osti_205443,
title = {Effect of pressure and shielding gas on the microstructure of hyperbaric metal cored GMAW welds down to 111 bar},
author = {Jorge, J C.F. and Santos, V.R. dos and Santos, J.F. dos},
abstractNote = {The microstructural evolution of hyperbaric C-Mn weld metals was studied by means of bead-on-plate welds deposit with GMAW process using a commercial metal cored wire. The welding was carried out in the flat position in the range of 51 bar to 111 bar with He+ CO{sub 2} as shielding gas, which CO{sub 2} content varied from 0.1% to 0.8 %. The microstructures were quantitatively analyzed by optical microscopy to evaluate the amount of constituents according to the IIW/IIS terminology. The results showed that all weld metals presented great amounts of acicular ferrite and a stronger influence of pressure on microstructure compared to the influence of the shielding gas.},
doi = {},
url = {https://www.osti.gov/biblio/205443},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Dec 31 00:00:00 EST 1995},
month = {Sun Dec 31 00:00:00 EST 1995}
}
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.