Premium
Elektropolieren von nichtrostenden austenitischen Stählen
Author(s) -
Risch Karl
Publication year - 1984
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.330560202
Subject(s) - electropolishing , polishing , austenite , materials science , metallurgy , chemistry , microstructure , electrode , electrolyte
Abstract Electropolishing of stainless austenitic steels. Electropolishing of pressure vessels made of clad steel surprisingly ran into considerable difficulties. A study revealed various reasons for the unsatisfactory polishing results achieved with stainless austenitic steels; e. g. nitride stabilizers lower the polish. The best results were obtained with steels having a low carbon content (C ⩽ 0.030%) when in the solution annealed state. This requirement is not fulfilled in the case of clad sheet. In such cases the C content must be limited to ⩽ 0.020% if a useful result is to be achieved at an economic price. Moreover, a sufficiently thick layer must be removed prior to electropolishing. A report of the study is accompanied by a description of the practical procedure and the theory of electropolishing.