Journal Title
Title of Journal: J Phase Equilib Diffus
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Abbravation: Journal of Phase Equilibria and Diffusion
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Authors: L Tan Y Yang R K Nanstad J T Busby
Publish Date: 2014/05/10
Volume: 35, Issue: 5, Pages: 524-529
Abstract
The effect of thermal aging on coarsening kinetics of alloy 617 a candidate material for heat exchanger of the very high temperature reactor was experimentally studied at 750 and 950 °C for up to 5300 h Formation of various precipitates such as μphase M23C6 and γ′ phases and significant coarsening of the γ′ phase have been observed in the microstructure of the aged samples Experimental observation was compared to alloy thermodynamic calculation and γ′phase precipitation kinetics simulation Thermal aging effect on the microstructural evolution and mechanical behavior of alloy 617 was then discussed based on experimental and microstructural modeling resultsResearch supported by the US Department of Energy DOE Office of Nuclear Energy under contract DEAC0500OR22725 with UTBattelle LLC and through a user project supported by ORNL’s Center for Nanophase Materials Sciences CNMS that is sponsored by the Scientific User Facilities Division Office of Basic Energy Sciences US DOE The authors appreciate Dr W Cao for discussions on the simulations
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