| Téléchargement | - Voir la version finale : Taguchi-based experimental investigation into weld cladding of Ni-WC MMC overlays by CMT process (PDF, 7,3 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1007/s00170-022-09816-7 |
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| Auteur | Rechercher : Karimi, Mohammad Reza1Identifiant ORCID : https://orcid.org/0000-0002-7675-6379; Rechercher : Wang, Sheng-Hui1Identifiant ORCID : https://orcid.org/0000-0003-2929-9774; Rechercher : Jelovica, JasminIdentifiant ORCID : https://orcid.org/0000-0002-8396-941X |
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| Affiliation | - Conseil national de recherches Canada. Énergie, les mines et l'environnement
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| Bailleur de fonds | Rechercher : National Research Council Canada; Rechercher : CWB Welding Foundation; Rechercher : Natural Sciences and Engineering Research Council of Canada; Rechercher : National Research Council Canada |
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| Format | Texte, Article |
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| Description physique | 29 p. |
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| Sujet | weld cladding; cold metal transfer (CMT); carbide transfer efciency; retained WC; carbide dissolution; Taguchi design of experiments |
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| Résumé | In the search for versatile and effective weld cladding processes to deposit ultra-wear-resistant Ni-WC MMC (Ni-based tungsten carbide metal matrix composite) overlays for mining applications, there is an increasing interest in exploring advanced low-heat-input cold metal transfer (CMT) method. Depositions of single weld bead tracks of Ni-WC MMCs on steel plates were performed by employing the CMT process; Taguchi’s design of experiments was used to plan the experimental investigation. All weld tracks exhibit continuous and uniform bead profile and sound metallurgical bonding to the substrate. Retained WCs are present in the overlay tracks relatively uniformly. The formation of primary WC and secondary carbides is observed depending on the level of dilution. In contrast to standard gas metal arc welding processes, the volume fraction of retained WC, which is negatively correlated with dilution level, is not directly interrelated with heat input for the CMT process and can reach a high level together with improved weld bead appearance at high deposition rate. Deposition rate has a positive correlation with average instantaneous power, which is, in turn, positively correlated with wire feed speed. The addition of oxygen into shielding gas mixtures promotes carbide transfer from cored feed wire to the weld track and increases the volume fraction of retained WC. Analysis of signal-to-noise ratios shows that it is difficult to find a single set of optimized processing parameters, and trade-offs are needed in engineering practice. The present investigation demonstrates that the Taguchi method is a powerful tool in process improvement for weld cladding of Ni-WC MMC overlays. |
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| Date de publication | 2022-09-03 |
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| Maison d’édition | Springer |
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| Licence | |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Identificateur | 9816 |
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| Numéro du CNRC | NRC-EME-56323 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 4d2efdb8-ba74-4082-935e-374d75b57dd8 |
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| Enregistrement créé | 2022-09-07 |
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| Enregistrement modifié | 2025-11-03 |
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