Stress corrosion cracking resistance of duplex stainless steels in the environment containing hydrogen sulfide and chlorides was evaluated for many steels with different chemical compositions and ferrite-austenite ratio. It is indicated that the resistance to cracking is affected by the compositions of ferrite and austenite which constitute the steel structure rather than by the ferrite- austenite ratio. There is an optimum value in Cr content. And alloying with N is beneficial for improving cracking resistance.

Subject
Ferritic steel, Materials, Sour environments, Cracking resistance, Nitrogen, Steel, Corrosion resistance, Duplex stainless steel, Cracking, Elements, Ferrite, Stress corrosion cracking, Austenite
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1986
Association for Materials Protection and Performance (AMPP)
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