Varied enhancements in mechanical properties and sodium compatibility of Grade 92 by thermomechanical treatments

L. Tan; M. A. Sokolov; S. J. Pawel; T. L. Sham; J. T. Busby

doi:10.1016/j.msea.2021.142359

Varied enhancements in mechanical properties and sodium compatibility of Grade 92 by thermomechanical treatments

L. Tan, M. A. Sokolov, S. J. Pawel, T. L. Sham, J. T. Busby

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

As a candidate material for advanced nuclear reactors, a ferritic-martensitic (FM) steel Grade 92 in the standard normalized and tempered (NT) condition was subjected to two types of thermomechanical treatments (TMTs) with one having a lower level of deformation (T5A) and the other having a higher level of deformation (T5B). The testing results of the three conditions indicated that the TMTs significantly improved yield strength, creep resistance, fracture toughness, and sodium corrosion resistance compared with the NT condition. T5A excelled at creep resistance while T5B at sodium corrosion resistance. Microstructural characterization of the three conditions supports the varied enhancements in the properties. This study suggests that an appropriate TMT can be developed and applied to FM steels to better meet specific application requirements.

Original language	English
Article number	142359
Journal	Materials Science and Engineering: A
Volume	832
DOIs	https://doi.org/10.1016/j.msea.2021.142359
State	Published - Jan 14 2022

Funding

The material is based upon work supported by the U.S. Department of Energy (DOE), Office of Nuclear Energy, Advanced Reactor Technologies Program , under Contract no. DE-AC05-00OR22725 .

Funders	Funder number
Advanced Reactor Technologies Program	DE-AC05-00OR22725
U.S. Department of Energy
Office of Nuclear Energy

Keywords

Carburization
Creep
Decarburization
Fracture toughness
Microstructure
Tensile

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10.1016/j.msea.2021.142359

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title = "Varied enhancements in mechanical properties and sodium compatibility of Grade 92 by thermomechanical treatments",

abstract = "As a candidate material for advanced nuclear reactors, a ferritic-martensitic (FM) steel Grade 92 in the standard normalized and tempered (NT) condition was subjected to two types of thermomechanical treatments (TMTs) with one having a lower level of deformation (T5A) and the other having a higher level of deformation (T5B). The testing results of the three conditions indicated that the TMTs significantly improved yield strength, creep resistance, fracture toughness, and sodium corrosion resistance compared with the NT condition. T5A excelled at creep resistance while T5B at sodium corrosion resistance. Microstructural characterization of the three conditions supports the varied enhancements in the properties. This study suggests that an appropriate TMT can be developed and applied to FM steels to better meet specific application requirements.",

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author = "L. Tan and Sokolov, {M. A.} and Pawel, {S. J.} and Sham, {T. L.} and Busby, {J. T.}",

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AU - Tan, L.

AU - Sokolov, M. A.

AU - Pawel, S. J.

AU - Sham, T. L.

AU - Busby, J. T.

PY - 2022/1/14

Y1 - 2022/1/14

N2 - As a candidate material for advanced nuclear reactors, a ferritic-martensitic (FM) steel Grade 92 in the standard normalized and tempered (NT) condition was subjected to two types of thermomechanical treatments (TMTs) with one having a lower level of deformation (T5A) and the other having a higher level of deformation (T5B). The testing results of the three conditions indicated that the TMTs significantly improved yield strength, creep resistance, fracture toughness, and sodium corrosion resistance compared with the NT condition. T5A excelled at creep resistance while T5B at sodium corrosion resistance. Microstructural characterization of the three conditions supports the varied enhancements in the properties. This study suggests that an appropriate TMT can be developed and applied to FM steels to better meet specific application requirements.

AB - As a candidate material for advanced nuclear reactors, a ferritic-martensitic (FM) steel Grade 92 in the standard normalized and tempered (NT) condition was subjected to two types of thermomechanical treatments (TMTs) with one having a lower level of deformation (T5A) and the other having a higher level of deformation (T5B). The testing results of the three conditions indicated that the TMTs significantly improved yield strength, creep resistance, fracture toughness, and sodium corrosion resistance compared with the NT condition. T5A excelled at creep resistance while T5B at sodium corrosion resistance. Microstructural characterization of the three conditions supports the varied enhancements in the properties. This study suggests that an appropriate TMT can be developed and applied to FM steels to better meet specific application requirements.

KW - Carburization

KW - Creep

KW - Decarburization

KW - Fracture toughness

KW - Microstructure

KW - Tensile

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Varied enhancements in mechanical properties and sodium compatibility of Grade 92 by thermomechanical treatments

Abstract

Funding

Keywords

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