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Superplastic behaviour and solid state weldability of a polycrystalline heavily alloyed nickel-base superalloy
| Content Provider | Scilit |
|---|---|
| Author | Mukhtarov, Sh Kh Imayev, V. M. Ganeev, A. A. Shakhov, R. V. Logunov, A. V. |
| Copyright Year | 2020 |
| Description | Journal: Iop Conference Series: Materials Science and Engineering Effective thermomechanical treatment has been developed for the heavily alloyed Ni- base superalloy produced via ingot metallurgy with a high content of γ’-forming elements. It allowed us to eliminate dendritic segregation and to obtain a uniform fine-grained structure with a γ grain size of d=5-15 μm. In the fine-grained condition the superalloy exhibited superplastic properties at 1125-1175°C (δ>300%, σ=10-27 MPa, m>0.3). Pressure welding experiments were performed at 1150°C for samples with the fine-grained structure. The solid-phase joint was formed only after compression to the strain of 50%. It was shown that insertion of a nanocrystalline interlayer of the same superalloy between the welded samples facilitated formation of the solid-phase joint. |
| Related Links | https://iopscience.iop.org/article/10.1088/1757-899X/1008/1/012046/pdf |
| ISSN | 17578981 |
| e-ISSN | 1757899X |
| DOI | 10.1088/1757-899x/1008/1/012046 |
| Journal | Iop Conference Series: Materials Science and Engineering |
| Issue Number | 1 |
| Volume Number | 1008 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2020-12-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Iop Conference Series: Materials Science and Engineering Metallurgy and Metallurgical Engineering |
| Content Type | Text |
| Resource Type | Article |
