Reference number
ISO 12732:2006
International Standard
ISO 12732:2006
Corrosion of metals and alloys — Electrochemical potentiokinetic reactivation measurement using the double loop method (based on Cihal's method)
Edition 1
2006-09
Read sample
ISO 12732:2006
33261
Published (Edition 1, 2006)
This publication was last reviewed and confirmed in 2020. Therefore this version remains current.

ISO 12732:2006

ISO 12732:2006
33261
Language
Format
CHF 96
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Abstract

ISO 12732:2006 specifies the method for measuring the degree of sensitization (DOS) in stainless steel and nickel-based alloys using the Double Loop Electrochemical Potentiokinetic Reactivation (DL-EPR) test (based on Cihal's method).

The method may be used for the quantitative assessment of deleterious thermal effects resulting in the formation of alloy-element-depleted zones at grain boundaries or in the matrix. However, attention should be paid when testing heat-affected weld zones, due to possible non-uniform distribution of sensitized zones along the fusion lines.

The results of the test can be used as an index to identify the potential susceptibility of stainless steel and nickel-based alloys to intergranular corrosion, pitting corrosion, and intergranular-stress corrosion cracking, but prediction of these corrosion modes depends on complementary specific testing.

ISO 12732:2006 describes the general methodology and gives examples of suitable test exposure conditions for specific alloys.

General information

  •  : Published
     : 2006-09
    : International Standard confirmed [90.93]
  •  : 1
     : 14
  • ISO/TC 156
    77.060 
  • RSS updates

Life cycle

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