Influence of base alloy composition on processing time during transient liquid phase bonding of nickel-base superalloys

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dc.contributor.authorHunedy, Juhaina
dc.contributor.examiningcommitteeRichards, Norman (Mechanical & Manufacturing Eng.) Hashemian, Fariborz (Civil Eng.)en_US
dc.contributor.supervisorOjo, Olanrewaju (Mechanical & Manufacturing Eng.)en_US
dc.date.accessioned2013-08-22T16:25:50Z
dc.date.available2013-08-22T16:25:50Z
dc.date.issued2013-08-22
dc.degree.disciplineMechanical and Manufacturing Engineeringen_US
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.abstractAn experimental investigation to study the influence of base metal composition on the time required to achieve complete isothermal solidification (tf) during TLP bonding of three Ni-base superalloys was performed. Alloys IN 738, DS Rene80 and DS IC 6 show similar behaviour when bonded at 1100 oC, with comparable tf. However, at higher temperatures, IN 738 requires extended period of time (as compared to DS Rene80 and DS IC 6) to achieve complete isothermal solidification. The prolonged tf in IN 738 appears to be caused by a more pronounced reduction in concentration gradient of the diffusing solute within the material during bonding. In contrast, the shorter complete isothermal solidification time experienced by alloy DS IC6 is attributable to its capability to better accommodate the diffusing solute, through the formation of densely packed second-phase precipitates in the diffusion affected zone (DAZ).en_US
dc.description.noteOctober 2013en_US
dc.identifier.urihttp://hdl.handle.net/1993/22072
dc.language.isoengen_US
dc.rightsopen accessen_US
dc.subjectNickel superalloysen_US
dc.subjectTransient Liquid phase bondingen_US
dc.titleInfluence of base alloy composition on processing time during transient liquid phase bonding of nickel-base superalloysen_US
dc.typemaster thesisen_US
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