Title: Research on intergranular corrosion of welded joint of nuclear-grade austenitic stainless steel
Abstract:The tendency to intergranular corrosion of the welded joints of 800 Hand Cr18Ni30Mo2Al3Nb alloy was investigated.Sensitizing treatment of 650℃×100hand no treatment was used.The microstructure,morpholo...The tendency to intergranular corrosion of the welded joints of 800 Hand Cr18Ni30Mo2Al3Nb alloy was investigated.Sensitizing treatment of 650℃×100hand no treatment was used.The microstructure,morphology and the intergranular corrosion resistance of samples were studied by optical microscope、SEM and Method of copper sulfate-sulfuric acid test for stainless steels.The results show that the dissimilar welded joints are all the single austenite(γ)organizations.TiN inclusions lead to pitting corrosion in alloy 800 H.However,no excessive pitting corrosion in Cr18Ni30Mo2Al3 Nb alloy.As can be seen from the weightlessness,corrosion depth test results,clearly shown that Cr18Ni30Mo2Al3 Nb welded joint has better intergranular corrosion resistance than 800 H.Read More
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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Cited By Count: 2
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