Corrosion Properties of Sealing Surface Material for RPV under Abnormal Working Conditions

LIU Jinhua; WEN Yan; ZHANG Xuemei; HUO Songmin; GONG Bin; HE Yanchun

Mar. 2025

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LIU Jinhua, WEN Yan, ZHANG Xuemei, HUO Songmin, GONG Bin, HE Yanchun. Corrosion Properties of Sealing Surface Material for RPV under Abnormal Working Conditions[J]. Nuclear Power Engineering, 2012, 33(1): 83-87.

Citation:

LIU Jinhua, WEN Yan, ZHANG Xuemei, HUO Songmin, GONG Bin, HE Yanchun. Corrosion Properties of Sealing Surface Material for RPV under Abnormal Working Conditions[J]. Nuclear Power Engineering, 2012, 33(1): 83-87.

Citation:

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Corrosion Properties of Sealing Surface Material for RPV under Abnormal Working Conditions

Nuclear Power Institute of China, Chengdu, 610041, China

Received Date: 2010-09-07
Rev Recd Date: 2011-04-11

Available Online: 2025-03-08

Abstract

Abstract

Based on the corrosion issue of sealing surface material for RPV in some nuclear projects,the corrosion properties of sealing surface material for RPV under abnormal working conditions were investigated.The corrosion behavior of 308L stainless steel were studied by using autoclave in different contents of Cl-solutions,and these samples were observed and analyzed by means of the metalloscope and Scanning electron microscope（SEM）.Results show that no pitting,crevice and stress corrosion occurred,when the content of Cl-was lower than 1 mg/L at the temperatures of 270℃ and the pressure of 5.5 MPa.However,with the increase of the content of Cl-,the susceptibility to pitting,crevice and stress corrosion of 308L was enhanced remarkably.
- RPV,
- Sealing surface,
- Pitting corrosion,
- Crevice corrosion,
- Stress corrosion