Oxidation and tensile behavior of ferritic/martensitic steels after exposure to lead-bismuth eutectic

Liu, Jian; Shi, Quanqiang; He, Li; Yan, Wei; Sha, Wei; Wang, Wei; Shan, Yiyin; Yang, Ke

doi:10.1016/j.msea.2016.05.100

Cited by 12 publications

(9 citation statements)

References 40 publications

(48 reference statements)

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“…Due to the specificity of each liquid metal environment, a variety of factors (metallurgical, mechanical, chemical) can influence the LME susceptibility of F/M steels in contact with liquid Pb or LBE [36]. These factors can be classified into the following three categories: the first category is associated with the intrinsic steel sensitivity (factor type I), which, in turn, depends critically on the wettability or surface state [257,447,475,[491][492][493] and steel pre-exposure [494,495]. The second category relates to the dependence on the steel metallurgical state [458,471] and its alteration under irradiation [45,493,[496][497][498].…”

Section: Factors Affecting the Lme Of F/m Steels In Liquid Pb/lbementioning

confidence: 99%

Environmental degradation of structural materials in liquid lead- and lead-bismuth eutectic-cooled reactors

Gong

Short

Auger

et al. 2022

Progress in Materials Science

169

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Section: Factors Affecting the Lme Of F/m Steels In Liquid Pb/lbementioning

confidence: 99%

Environmental degradation of structural materials in liquid lead- and lead-bismuth eutectic-cooled reactors

Gong

Short

Auger

et al. 2022

Progress in Materials Science

169

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“…Therefore, the specimens ruptured easily in the LBE for a short time once the cracks inside the substrate are formed, which is in accordance with the report of Gong et al [25] Compared to the corrosion thickness of SIMP steel without loading in the LBE, the thickness of the oxide scale increases with the increase of tensile stress. [12,13] It can be accounted for the increase of atom diffusion rate in Fe-Cr alloys under a tensile strain. [33]…”

Section: Oxide Scale Formed On the Specimen Surfacementioning

confidence: 99%

“…This difference is due to the silica formed in the inner oxide layer of SIMP, which hinders the oxygen from diffusing towards the Fe‐Cr matrix. [ 12–14 ]…”

Section: Introductionmentioning

confidence: 99%

“…This difference is due to the silica formed in the inner oxide layer of SIMP, which hinders the oxygen from diffusing towards the Fe-Cr matrix. [12][13][14] Besides the liquid Pb-Bi eutectic corrosion, the influence of liquid metal embrittlement (LME) on steels is inevitable under a slow strain rate at 300-450°C. [15] It is well known that LME can deteriorate the mechanical properties of steels, such as the reduction of fracture toughness, [16] and a drop of the total elongation.…”

mentioning

confidence: 99%

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Investigation into creep‐to‐rupture of SIMP steel in stagnant LBE at 300–450°C

Liao

et al. 2022

Materials & Corrosion

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Ferritic/martensitic steel was chosen as a primary candidate structural material for China Initiative Accelerator Driven System (CiADS) which started in 2015. A new kind of tempered martensitic steel, Steel of Institute of Modern Physics (SIMP), was designed to meet the requirements of the special operating environment. Structural materials suffer from liquid Pb‐Bi corrosion and liquid metal wetting at 450°C. Liquid metal wetting can seriously affect the mechanical properties of structural materials due to the decrease in surface energy and transition from martensitic laths to ferritic grains. Creep‐to‐rupture of SIMP steel was explored in stagnant liquid Pb‐Bi eutectic at 450°C. The possible reasons for creep‐to‐rupture are discussed. The results of the present study provide a new insight into challenges related to the application of SIMP steel in CiADS.

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“…A ductile material may become brittle or lose its ductility, i.e. liquid metal embrittlement (LME) when subjected to stress in a lead-bismuth environment [5].…”

Section: Introductionmentioning

confidence: 99%

Effect of surface shot peening on the microstructure and mechanical properties of fuel cladding 1515-Ti austenitic steel

Liu¹,

Xiao²,

Zhai³

et al. 2022

J. Phys.: Conf. Ser.

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Lead-bismuth fast reactor is considered to be the most promising solution to meet the enormous energy demand in the future. The 15-15Ti austenitic stainless steel with outstanding corrosion and irradiation resistance has been proposed as main cladding candidate material for lead-bismuth fast reactor. However, the mechanical properties of 15-15Ti are weakly influenced by LBE. Shot peening as one of surface strengthening technique can efficiently improve metal mechanical properties. In this paper, shot peening (SP) treatment was applied on 15-15Ti. The microstructures and compositions were investigated using Optical Microscope, Scanning Electron Microscope and X-Ray Diffraction. It concludes that the material hardness is improved, and the residual stress induced by SP did not cause martensitic phase transformation on the sample surface. The presence of slip bands and other obstacles in the reinforcement layer improved the yielding and tensibility of the material.

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Oxidation and tensile behavior of ferritic/martensitic steels after exposure to lead-bismuth eutectic

Cited by 12 publications

References 40 publications

Environmental degradation of structural materials in liquid lead- and lead-bismuth eutectic-cooled reactors

Environmental degradation of structural materials in liquid lead- and lead-bismuth eutectic-cooled reactors

Investigation into creep‐to‐rupture of SIMP steel in stagnant LBE at 300–450°C

Effect of surface shot peening on the microstructure and mechanical properties of fuel cladding 1515-Ti austenitic steel

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