Friction stir welding of Haynes 282 Ni superalloy by using a novel hemispherical tool

Sharma, Abhishek; Miura, Takuya; Morisada, Yoshiaki et al.

Scientific Reports, 2024, 14, 27826

Number of Access:650（2025-11-20 13:11 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/98509

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Title
Friction stir welding of Haynes 282 Ni superalloy by using a novel hemispherical tool
Creator
NRID
1000050993705 1000050993705
researchmap permalink
sharma_abhishek sharma_abhishek
Scopus Author ID
57214356255 57214356255
ORCID
0000-0002-3384-861X 0000-0002-3384-861X
CreatorName
Sharma, Abhishek
NRID
1000060781466 1000060781466
ORCID
0000-0002-8991-5412 0000-0002-8991-5412
researchmap permalink
miuratky miuratky
Scopus Author ID
55162450300 55162450300
CreatorName
Miura, Takuya
NRID
1000000416356 1000000416356
researchmap permalink
morisada morisada
CreatorName
Morisada, Yoshiaki
CreatorName
Ushioda, Kohsaku
CreatorName
Singh, Sukhdeep
NRID
1000000247230 1000000247230
ORCID
0000-0002-5023-3844 0000-0002-5023-3844
researchmap permalink
read0051741 read0051741
Scopus Author ID
7403071460 7403071460
CreatorName
Fujii, Hidetoshi
Subject
Friction stir welding (FSW)
Haynes 282
Hemispherical tool
Ni-based superalloy
Precipitation strengthening
Description
Sharma A., Miura T., Morisada Y., et al. Friction stir welding of Haynes 282 Ni superalloy by using a novel hemispherical tool. Scientific Reports 14, 27826 (2024); https://doi.org/10.1038/s41598-024-79331-0.
Abstract
In the present investigation, friction stir welding (FSW) of a gamma prime (γ′) strengthened Haynes 282 nickel-base superalloy by using a novel hemispherical tool is documented. A joint efficiency of ~ 96% was achieved in the as-welded condition, which further increased to ~ 100% after two-step post-weld aging heat treatment. An extremely fine (~ 2 μm) grained microstructure was observed in the FSWed region compared with the coarse (~ 48 μm) grain base metal region. The carbides (MC and M23C6) and γ′ precipitates are identified as the important microstructural constituent phases observed in the welded region. The aging heat treatment resulted in the precipitation of the γ′ strengthening phase and altered the morphology of the M23C6 carbide phase in the welded region from a continuous film to discrete particles at the grain boundaries. The preliminary results concerning tool life suggest that no significant tool wear occurs at least up to a welding distance of 200 mm. Therefore, the novel hemispherical tool design allows the successful FSW of high-temperature application materials without any significant tool wear or high heat generation.
Publisher
Nature Research
Source Title
Scientific Reports
Volume (Issue)
14
Page
27826
Date of Issued
2024-11-13
Language
English
Handle URL
https://hdl.handle.net/11094/98509
eISSN
20452322
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1038/s41598-024-79331-0
Access Rights
open access
CopyRight
This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article