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Rapetti, A., Christien, F., Tancret, F., Todeschini, P. & Hendili, S. (2020) Effect of composition on ductility dip cracking of 690 nickel alloy during multipass welding. Materials Today Communications, 24 101163.
Added by: Richard Baschera (2020-11-17 13:20:19) Last edited by: Richard Baschera (2020-11-17 13:54:37) |
| Type de référence: Article DOI: 10.1016/j.mtcomm.2020.101163 Numéro d'identification (ISBN etc.): 23524928 Clé BibTeX: Rapetti2020 Voir tous les détails bibliographiques  |
Catégories: ID2M Créateurs: Christien, Hendili, Rapetti, Tancret, Todeschini Collection: Materials Today Communications |
Consultations : 1/282
Indice de consultation : 4% Indice de popularité : 1% |
| Liens URLs https://linkinghub ... /S2352492819311110 |
| Résumé |
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This paper deals with Ductility Dip Cracking (DDC) during multipass welding of 690 filler metals. In addition to industrial alloys (152 and 52 M), model alloys of controlled purity were also used to unambiguously demonstrate the effect of elemental sulphur and carbon. The sensitivity of each alloy to DDC was measured with the recently developed Refusion Cracking Test (RCT). It is confirmed that the cracks observed in this study result from DDC, not from liquation nor solidification cracking. DDC cracks are in most cases observed after several welding passes. The detrimental effect of sulphur and beneficial effect of carbon on the resistance to DDC are clearly evidenced. The good resistance to DDC of the industrial alloys, compared to the model alloys, is related to their niobium content.
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