|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Mechanical and Creep Behavior of Advanced Materials: A SMD Symposium Honoring Prof. K. Linga Murty
||Study of High Temperature Deformation Behavior of Graded Transition Joints (GTJs) (Relevance to Nuclear Power Plant Components)
||Mohan Subramanian, Sudarsanam Suresh Babu, Jonathan Galler, John DuPont, Xinghua Yu, Zhili Feng
|On-Site Speaker (Planned)
Bimetallic weld made between 2.25Cr-1Mo steel (lower bundle component) and Alloy 800H (upper bundle component) using Inconel filler metal in the steam generator of Nuclear power plants fail prematurely in service. Simulated creep tests of this dissimilar weld configuration show that the failure occurs along the 2.25Cr-1Mo steel HAZ close to the weld interface due to the steep change in chemical composition and microstructure along the interface during service. Current research is focused on developing functionally Graded Transition Joints (GTJs), made by gradually changing the chemical composition in layers using Dual wire Gas Tungsten Arc Welding (DWGTAW) process. To study the creep deformation behavior of inhomogeneous GTJs, measuring overall creep strain using conventional extensometer will not be an appropriate methodology. Hence, Digital Image Correlation (DIC) was used to study the localized deformation response of GTJs.
||Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)