Cracking Susceptibility After Post-Weld Heat Treatment in Haynes 282 Nickel Based Superalloy
| dc.contributor.author | Osoba, L.O. | |
| dc.contributor.author | Khan, A.K. | |
| dc.contributor.author | Adeosun, S.O. | |
| dc.date.accessioned | 2020-05-30T18:34:12Z | |
| dc.date.available | 2020-05-30T18:34:12Z | |
| dc.date.issued | 2013 | |
| dc.description.abstract | This paper presents a study of the standard post-weld heat treatment (PWHT) behaviour of autogenous laser welded γ’ age-hardenable precipitation strengthened nickel based superalloy Haynes 282 (HY 282). The study involves a careful and detailed microstructural characterisation as well as an analysis of the weld cracking susceptibility during welding and Gleeble thermo-mechanical physical simulation. Various factors that could influence post-weld cracking in superalloys weld were experimentally examined. Our microstructural examination of the as-solution heat treated (SHTed) material and the thermo-mechanically refined grain material shows that intergranular heat affected zone (HAZ) cracking is observable in only the as-welded SHTed material. There was no indication of post-weld heat treatment cracking in all welded materials. Our conclusion, in this study, is that the chemistry of superalloy HY 282 which aids the preclusion/ formation of deleterious solidification microconstituents during welding as well as its relatively slow aging kinetics enhances its resistance to PWHT cracking. | en_US |
| dc.identifier.citation | Osoba, L.O. Khan, A.K. Adeosun, S.O. (2013). Cracking Susceptibility After Post-Weld Heat Treatment in Haynes 282 Nickel Based Superalloy. Acta Metall. Sin. (Engl. Lett.); 26(6): 747—753. | en_US |
| dc.identifier.uri | www.springerlink.com | |
| dc.identifier.uri | https://ir.unilag.edu.ng/handle/123456789/8329 | |
| dc.language.iso | en | en_US |
| dc.publisher | Acta Metall. Sin. (Engl. Lett.) | en_US |
| dc.subject | Cracking; Microstructure Analysis; Nickel based Superalloy | en_US |
| dc.title | Cracking Susceptibility After Post-Weld Heat Treatment in Haynes 282 Nickel Based Superalloy | en_US |
| dc.type | Article | en_US |