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Weldability Study of Superalloys Waspaloy® and Haynes® 282®
Department of Materials and Manufacturing Technology, Chalmers University of Technology, Gothenburg, Sweden / Research and Technology Department, GKN Aerospace Engine Systems, Trollhättan, Sweden.
University West, Department of Engineering Science, Division of Welding Technology. (PTW)ORCID iD: 0000-0001-9065-0741
Aalto University School of Engineering, Helsinki, Finland.
Aalto University School of Engineering, Helsinki, Finland.
2016 (English)In: 10th International Conference on Trends in Welding Research & 9th International Welding Symposium of Japan Welding Society (9WS), October 11-14, 2016, Tokyo, Japan: Proceedings, 2016, 325-328 p.Conference paper, Published paper (Other academic)
Abstract [en]

The weldability of Waspaloy® and Haynes® 282® have been evaluated using the Varestraint weldability test. The experiments reveal that Waspaloy® has a higher susceptibility to hot cracking compared to Haynes® 282®. This conclusion is supported by increased total crack length (10 mm or more) for Waspaloy® when compared to Haynes® 282® in Varestraint test. The cracking in Haynes® 282® seems to be connected with a secondary phase which presumably can be associated with Ti-Mo based MC-type carbide observed in the fusion zone. Also, a surrounding segregated area is present near this secondary phase as well as along the grain boundaries. Furthermore, micro-Vickers hardness results revealed more or less the same weld metal hardness (260-280 HV) but a difference in the base metal hardness. The weld metal hardness of Waspaloy® was lower than that of the base metal hardness, while Haynes® 282® had a higher hardness in comparison.

Place, publisher, year, edition, pages
2016. 325-328 p.
National Category
Manufacturing, Surface and Joining Technology
Research subject
Production Technology; ENGINEERING, Manufacturing and materials engineering
Identifiers
URN: urn:nbn:se:hv:diva-10547OAI: oai:DiVA.org:hv-10547DiVA: diva2:1064195
Conference
10th International Conference on Trends in Welding Research, October 11-14, 2016, Tokyo, Japan
Note

Konferensbidraget har som rubrik i konferensprogrammet "Weldability of Precipitation Hardening Ni-Based Superalloy".

Available from: 2017-01-12 Created: 2017-01-12 Last updated: 2017-04-06Bibliographically approved

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Andersson, Joel

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CiteExportLink to record
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