Effect of Crystallographic Orientation on Dissolution Behavior of Type 310S Stainless Steel Single Crystal

The effect of surface orientation on dissolution behavior of type 310S stainless steel single crystal was investigated by potentiostatic etching in the active region in H sub(2)SO sub(4) -NaCl solution. (100), (110) and (111) planes were prepared by cutting at the given angles of single crystal. The...

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Bibliographic Details
Published inJournal of the Society of Materials Engineering for Resources of Japan Vol. 15; no. 2; pp. 55 - 58
Main Authors Sato, Akinori, Kumagai, Shun-Ichi
Format Journal Article
LanguageJapanese
Published 01.01.2015
Subjects
Austenitic stainless steels
Cutting
Dissolution
Etching
Orientation
Planes
Single crystals
Stainless steels
Surface chemistry
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Summary:The effect of surface orientation on dissolution behavior of type 310S stainless steel single crystal was investigated by potentiostatic etching in the active region in H sub(2)SO sub(4) -NaCl solution. (100), (110) and (111) planes were prepared by cutting at the given angles of single crystal. The dissolution rate changed with etching potential and surface orientation. Residual planes for oriented pits were determined from these dissolution rate ratios. The residual planes changed in the sequence of {110} arrow right {110} + {111} arrow right {111} as the potential increased from the corrosion potential. These results imply an important relationship between fracture surface in stress corrosion cracking and faceting dissolution of stainless steels.
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ISSN:0919-9853