dc.contributor.authorToe, Thu Yein
dc.date.accessioned2017-05-30T08:04:02Z
dc.date.available2017-05-30T08:04:02Z
dc.date.issued2017
dc.identifier.urihttp://hdl.handle.net/10356/72237
dc.description.abstractIn this study, only two mechanical properties, hardness and fatigue, were considered. Most of the aerospace components requirement high impact toughness, high corrosion resistance and good fracture toughness. Considering other important mechanical properties to determine an optimum PHWT temperature will make the analysis more realistic. SEM machine can be used to analyses different phases more accurately and grain boundaries that could not be seemed by normal optical microscope’s magnification. On top of this, Energy Dispersive X-Ray (EDX) can be utilized to measure the niobium contents at different PWHTs. It is necessary because niobium contents at different PWHTs for particular phase is always changing and these changes are not possible to detect by just analyzing microstructure, size of grain boundaries and type of phases. Computer simulation can be done for 3-points bending tests to obtain the optimum results and comparison can be made with the experimental results. Measurement of residual stresses in both longitudinal and lateral direction after welding and after PWHTs is necessary. Relationship between residual stresses and mechanical properties such as hardness and fatigue can be further developed to make repair process more efficient and effective.en_US
dc.format.extent86 p.en_US
dc.language.isoenen_US
dc.rightsNanyang Technological University
dc.subjectDRNTU::Engineering::Mechanical engineeringen_US
dc.titleEffect of post weld heat treatment on mechanical properties of inconel 718 alloyen_US
dc.typeFinal Year Project (FYP)en_US
dc.contributor.supervisorTan Ming Jenen_US
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen_US
dc.description.degreeBachelor of Engineering (Mechanical Engineering)en_US
dc.contributor.organizationRolls-Royce Singaporeen_US
dc.contributor.researchMicroMachines Centreen_US


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