|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Materials and Fuels for the Current and Advanced Nuclear Reactors V
||Irradiation-induced Microstructure of Precipitate Hardened Nickel Based Alloy
||Miao Song, Mi Wang, David Woodley, Zhijie Jiao, Gary S Was
|On-Site Speaker (Planned)
we report the microstructure evolution of three nickel based alloys following proton irradiation at 360°C to 5 dpa. These alloys are alloy 625 (solid solution and water quenched), alloy 625 Plus (solid solution and fan cool), alloy 725 (solid solution and water quenched). Nano scale precipitates γ״ are absent in alloy 625. Prior to irradiation, the average sizes of γ״ are around 13 nm and 18 nm for alloy 625 Plus and alloy 725, respectively. These high density precipitates can act as defect sinks or recombination centers for irradiation induced point defects. Post irradiation examination is studied with respect to the density of dislocation loops, stability of precipitates, and irradiation hardening. The irradiation hardening is discussed through the strengthening of dislocation loops and precipitates.
||Planned: A print-only volume