Stress Corrosion Cracking of Austenitic Stainless Steels by Sulfur Compounds

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  • オーステナイトステンレス鋼の硫化物応力腐食割れについて
  • オーステナイトステンレス コウ ノ リュウカブツ オウリョク フショク ワレ ニ ツイテ

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Stress corrosion cracking of austenitic stainless steels by sulfur compounds has been investigated and the following results are obtaind;<br>(1) Austenitic stainless steels were subjected to stress corrosion cracking in solution of sulfurous acid and solution of sulfurous acid and polythionic acids when the Cr impoverished zone existed around the grain boundaries.<br>(2) Sulfite solution or polythionates solution did not induce the stress corrosion cracking failure.<br>(3) The stress corrosion cracking were observed to be intercrystalline by optical and electron microscopy.

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