Effect of grain boundary precipitation on the mechanical integrity of EBW joints of Inconel 625

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dc.contributor.authorRamkumar, K. Devendranath
dc.contributor.authorMulimani, Sachet Sangamesh
dc.contributor.authorAnkit, Kumar
dc.contributor.authorKothari, Ankita
dc.contributor.authorGanguly, Supriyo
dc.date.accessioned2021-03-24T14:11:50Z
dc.date.available2021-03-24T14:11:50Z
dc.date.issued2021-02-16
dc.description.abstractThe precipitation effects on the mechanical behavior of electron beam welded joints of Inconel 625 in the as-welded [AW] and post-weld heat treatment [PWHT] conditions have been investigated in this research study. A PWHT comprising of direct aging [DA] treatment at 700 °C for 100 h in vacuum at a pressure of 10−5 mbar was performed on the weld joints. The microstructure of the base alloy opined the precipitation of MC system carbides and γ′′ strengthening phase after subjecting to DA. Also, Nb–Mo rich precipitates and the Laves phase was noticed in the inter-dendritic arms of the fusion zone (FZ) of welded joints in the AW conditions. DA treatment has a notable effect on the weld mechanical characteristics of Inconel 625 joints. The precipitation of γ′′ strengthening phase is reasoned for the significant rise in the yield strength [YS] and tensile strength [TS] of the base alloy and EBW joints.en_UK
dc.identifier.citationRamkumar KD, Mulimani SS, Ankit K, et al., (2021) Effect of grain boundary precipitation on the mechanical integrity of EBW joints of Inconel 625. Materials Science and Engineering A: Structural Materials: Properties. Microstructures and Processing, Volume 808, March 2021, Article number 140926en_UK
dc.identifier.issn0921-5093
dc.identifier.urihttps://doi.org/10.1016/j.msea.2021.140926
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/16499
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectInconel 625en_UK
dc.subjectElectron beam weldingen_UK
dc.subjectPost-weld heat treatmenten_UK
dc.subjectMicrostructureen_UK
dc.subjectTensile strengthen_UK
dc.titleEffect of grain boundary precipitation on the mechanical integrity of EBW joints of Inconel 625en_UK
dc.typeArticleen_UK

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