Steam oxidation of Super 304H and shot-peened Super 304H

Rosser, J.C.; Bass, M.I.; Cooper, C.; Lant, T.; Brown, P.D.; Connolly, B.J.; Evans, H.E.

doi:10.1179/096034012x13316633785757

Cited by 2 publications

(2 citation statements)

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“…Therfore, it has been a promising candidate material for fuel cladding in SCWR [3]. Its corrosion behavior in SCW and water vapor has been widely studied [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. Previous results showed that 304 stainless steel has good corrosion resistance in SCW under 550 ºC, however, a substantial increase of corrosion rate appeard above this temperature.…”

Section: Introductionmentioning

confidence: 99%

Microstructural investigation of the nodular corrosion of 304NG stainless steel in supercritical water

Chen

Zhang

et al. 2020

Corrosion Science

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304NG stainless steel was exposed to deaerated 600 ºC supercritical water (SCW) for 300 h. The thin Cr-rich oxide film and corrosion nodules were characterized in detail by cutting edge techniques.The results show that the formation of MnCr2O4 is an important factor that deteriorates the protectiveness of the Cr-rich thin oxide film. Reaction zones ahead of the inner oxide are observed.The reaction zones are composed of oxide particles and remaining metal, indicating the occurrence of internal oxidation. The internal oxidation controls the further corrosion after the breakdown of Cr-rich thin oxide film, and subsequently the generation of corrosion nodules.

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Section: Introductionmentioning

confidence: 99%

Microstructural investigation of the nodular corrosion of 304NG stainless steel in supercritical water

Chen

Zhang

et al. 2020

Corrosion Science

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“…The steam‐side oxide scale formed on superheater and reheater tubes can reduce the corrosion rate by acting as a diffusion barrier between high‐temperature steam and underlying metal . In practice, oxide scale is frequently subjected to the mechanical stress, such as thermal stress and oxide growth stress .…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of the failure behavior of steam‐side oxide scale considering oxide creep and physical defects

Jing

Zhou

Huang

et al. 2017

Materials & Corrosion

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The present study deals with a numerical simulation of the failure behavior of steam‐side oxide scale at high temperature considering oxide creep and physical defects. An experimental observation was conducted on the oxide scale formed on T91 superheater tubes from one coal‐fired plant, and the elastic‐plastic finite element model (FEM) considering oxide creep was established to predict the crack load and the residual stress within oxide scale during cooling. The simulation results associated with those of the pure elastic model were used to clarify the effect of oxide creep on oxide failure. Then the FEM was applied to assess the occurrence of oxide failure as a function of physical defect length, oxide thickness, and cooling rate. The results showed that the hold period on cooling could effectively prevent oxide spallation. Interestingly, the influence of physical defect length on the through‐scale crack was larger than the interface crack, while the cooling rate and oxide thickness had a more significant effect on the interface crack.

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Steam oxidation of Super 304H and shot-peened Super 304H

Cited by 2 publications

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Microstructural investigation of the nodular corrosion of 304NG stainless steel in supercritical water

Microstructural investigation of the nodular corrosion of 304NG stainless steel in supercritical water

Numerical simulation of the failure behavior of steam‐side oxide scale considering oxide creep and physical defects

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