Corrosion behavior of UNS S31803 steel with changes in the volume fraction of ferrite and the presence of chromium nitride

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

卷:648

Article

de Lacerda, J. C.^1,2  Candido, L. C.¹  Godefroid, L. B.¹ 

[1] Univ Fed Ouro Preto, REDEMAT, BR-35400000 Ouro Preto, MG, Brazil

[2] Univ Fed Itajuba, BR-35900000 Itabira, MG, Brazil

关键词: Stainless steel;    Polarization;    Pitting corrosion;    Stress corrosion cracking;   

DOI  :  10.1016/j.msea.2015.09.092

来源: Elsevier

【 摘 要 】

The goal of this study was to examine the changes caused in stress corrosion cracking and the critical pitting temperature behavior of a UNS S31803 duplex stainless steel due to variations in the ferrite fraction and the presence of chromium nitride in their microstructure. The steel plates were cold rolled and annealed at 1060 degrees C. Microstructural variations in the plates were produced by thermal annealing treatments at 1200 degrees C and 1300 degrees C. Steel annealed at 1060 degrees C showed greater resistance to stress corrosion cracking than steel annealed at 1300 degrees C. Steel annealed at 1300 degrees C had the lowest critical pitting temperature. Published by Elsevier B.V.

【 授权许可】

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