About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Local Ordering in Materials and Its Impacts on Mechanical Behaviors, Radiation Damage, and Corrosion
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Presentation Title |
Ni2Cr Long Range Ordered Transgranular Precipitation-accelerated Corrosion of Ni-Cr Alloys in Chloride Molten Salt |
Author(s) |
Fei Teng, Trishelle Copeland-Johnson , Julie Tucker, Guoping Cao |
On-Site Speaker (Planned) |
Fei Teng |
Abstract Scope |
Ni-based alloys play an important role as key components of many energy systems including nuclear and solar systems especially in molten salt environments. However, the corresponding corrosion behaviors are still not clear in many aspects. Recent research reveals the degradation effect of Ni-Cr intermetallic long range ordered phase on corrosion resistance. Ni-Cr binary model alloys were isothermal heat treated followed by NaCl-MgCl2 molten salt corrosion. MoPt2 type Ni2Cr long-range ordering was formed during isothermal heat treatment. Result of post corrosion characterization shows that the existing of ordered phase would accelerate the corrosion process significantly compared to as-received condition. More weight loss and larger corroded area were observed in ordered specimen. |
Proceedings Inclusion? |
Planned: |
Keywords |
Copper / Nickel / Cobalt, Nuclear Materials, Environmental Effects |