Effect of filler wires on mechanical properties of super-duplex stainless steel UNS S32750 and austenitic stainless steel 304 dissimilar joints welded with PCGTAW technique
This study addresses the effects of fillers (ERNiCrMo-3, ERNiCrMo-4 and ER309L) for joining 5 mm dissimilar metals of super-duplex steel (UNS S32750) and austenitic stainless steel (AISI 304) by using pulsed current gas tungsten arc welding. Welding parameters were fixed across all cases with the...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Prince of Songkla University
2022-02-01
|
| Series: | Songklanakarin Journal of Science and Technology (SJST) |
| Subjects: | |
| Online Access: | https://rdo.psu.ac.th/sjst/journal/44-1/22.pdf |
| _version_ | 1818244047129542656 |
|---|---|
| author | Balram Yelamasetti Venkat Ramana G. Tirupathi Kadam |
| author_facet | Balram Yelamasetti Venkat Ramana G. Tirupathi Kadam |
| author_sort | Balram Yelamasetti |
| collection | DOAJ |
| description | This study addresses the effects of fillers (ERNiCrMo-3, ERNiCrMo-4 and ER309L) for joining 5 mm dissimilar
metals of super-duplex steel (UNS S32750) and austenitic stainless steel (AISI 304) by using pulsed current gas tungsten arc
welding. Welding parameters were fixed across all cases with the three alternative filler wires. Mechanical properties of
weldments were evaluated by conducting impact, tensile and microhardness tests. Microstructural changes were studied by
optical microscopy. The ratio of proof stress to ultimate tensile strength, and the ultimate tensile strength were found to be higher
with ERNiCrMo-4 (0.6, 642 MPa) filler weldment than with ERNiCrMo-3 (0.57, 624 MPa) or ER309L (0.56, 612 MPa) filler
weldments. Microhardness of the weldment with ERNiCrMo-4 filler was higher than with the other two fillers. It was observed
from the impact test results that the ERNiCrMo-4 filler weldment exhibited superior toughness of 189 J. |
| first_indexed | 2024-12-12T14:10:48Z |
| format | Article |
| id | doaj.art-7619a31bd8d44c3d890b7d90324f9083 |
| institution | Directory Open Access Journal |
| issn | 0125-3395 |
| language | English |
| last_indexed | 2024-12-12T14:10:48Z |
| publishDate | 2022-02-01 |
| publisher | Prince of Songkla University |
| record_format | Article |
| series | Songklanakarin Journal of Science and Technology (SJST) |
| spelling | doaj.art-7619a31bd8d44c3d890b7d90324f90832022-12-22T00:22:05ZengPrince of Songkla UniversitySongklanakarin Journal of Science and Technology (SJST)0125-33952022-02-0144114915610.14456/sjst-psu.2022.22Effect of filler wires on mechanical properties of super-duplex stainless steel UNS S32750 and austenitic stainless steel 304 dissimilar joints welded with PCGTAW techniqueBalram Yelamasetti0Venkat Ramana G.1Tirupathi Kadam2Department of Mechanical Engineering, CMR Institute of Technology, Hyderabad, 501401 IndiaDepartment of Mechanical Engineering, CMR Institute of Technology, Hyderabad, 501401 IndiaDepartment of Mechanical Engineering, CMR Institute of Technology, Hyderabad, 501401 IndiaThis study addresses the effects of fillers (ERNiCrMo-3, ERNiCrMo-4 and ER309L) for joining 5 mm dissimilar metals of super-duplex steel (UNS S32750) and austenitic stainless steel (AISI 304) by using pulsed current gas tungsten arc welding. Welding parameters were fixed across all cases with the three alternative filler wires. Mechanical properties of weldments were evaluated by conducting impact, tensile and microhardness tests. Microstructural changes were studied by optical microscopy. The ratio of proof stress to ultimate tensile strength, and the ultimate tensile strength were found to be higher with ERNiCrMo-4 (0.6, 642 MPa) filler weldment than with ERNiCrMo-3 (0.57, 624 MPa) or ER309L (0.56, 612 MPa) filler weldments. Microhardness of the weldment with ERNiCrMo-4 filler was higher than with the other two fillers. It was observed from the impact test results that the ERNiCrMo-4 filler weldment exhibited superior toughness of 189 J.https://rdo.psu.ac.th/sjst/journal/44-1/22.pdfsuper-duplex stainless steelaustenitic stainless steelpcgtaw techniquemechanical propertiesmicrostructural studies |
| spellingShingle | Balram Yelamasetti Venkat Ramana G. Tirupathi Kadam Effect of filler wires on mechanical properties of super-duplex stainless steel UNS S32750 and austenitic stainless steel 304 dissimilar joints welded with PCGTAW technique Songklanakarin Journal of Science and Technology (SJST) super-duplex stainless steel austenitic stainless steel pcgtaw technique mechanical properties microstructural studies |
| title | Effect of filler wires on mechanical properties of super-duplex stainless steel UNS S32750 and austenitic stainless steel 304 dissimilar joints welded with PCGTAW technique |
| title_full | Effect of filler wires on mechanical properties of super-duplex stainless steel UNS S32750 and austenitic stainless steel 304 dissimilar joints welded with PCGTAW technique |
| title_fullStr | Effect of filler wires on mechanical properties of super-duplex stainless steel UNS S32750 and austenitic stainless steel 304 dissimilar joints welded with PCGTAW technique |
| title_full_unstemmed | Effect of filler wires on mechanical properties of super-duplex stainless steel UNS S32750 and austenitic stainless steel 304 dissimilar joints welded with PCGTAW technique |
| title_short | Effect of filler wires on mechanical properties of super-duplex stainless steel UNS S32750 and austenitic stainless steel 304 dissimilar joints welded with PCGTAW technique |
| title_sort | effect of filler wires on mechanical properties of super duplex stainless steel uns s32750 and austenitic stainless steel 304 dissimilar joints welded with pcgtaw technique |
| topic | super-duplex stainless steel austenitic stainless steel pcgtaw technique mechanical properties microstructural studies |
| url | https://rdo.psu.ac.th/sjst/journal/44-1/22.pdf |
| work_keys_str_mv | AT balramyelamasetti effectoffillerwiresonmechanicalpropertiesofsuperduplexstainlesssteelunss32750andausteniticstainlesssteel304dissimilarjointsweldedwithpcgtawtechnique AT venkatramanag effectoffillerwiresonmechanicalpropertiesofsuperduplexstainlesssteelunss32750andausteniticstainlesssteel304dissimilarjointsweldedwithpcgtawtechnique AT tirupathikadam effectoffillerwiresonmechanicalpropertiesofsuperduplexstainlesssteelunss32750andausteniticstainlesssteel304dissimilarjointsweldedwithpcgtawtechnique |