On the substitution of conventional corrosion tests by an electrochemical potentiokinetic reactivation test

被引：40

作者：

Prohaska, M. ^{[1
]}

Kanduth, H. ^{[1
]}

Mori, G. ^{[1
]}

Grill, R. ^{[1
]}

Tischler, G. ^{[2
]}

机构：

[1] Univ Leoben, CD Lab Localized Corros, A-8700 Leoben, Austria

[2] Voestalpine Grobblech GmbH, A-4031 Linz, Austria

来源：

CORROSION SCIENCE | 2010年 / 52卷 / 05期

关键词：

Alloy; 625; Polarization; Intergranular corrosion; INTERGRANULAR CORROSION; RESISTANCE; PRECIPITATION; EVOLUTION; STEELS;

D O I：

10.1016/j.corsci.2010.01.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nickel-based alloy 625 was investigated by means of a conventional corrosion test (Streicher-test according to ASTM G28A[1]) and an electrochemical potentiokinetic reactivation test (according to ASTM G108 [1], with some modifications). Susceptibility to intergranular corrosion after various heat treatments was examined by using both test methods and the results were compared. Dependent on the type of heat treatment applied, both methods showed partially different results. Possibilities and limitations of replacing Streicher-test with EPR-test are pointed out and commentated. In conclusion, the EPR-test presents itself as a promising and quick investigation technique for detecting susceptibility to intergranular corrosion in nickel-based alloys. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1582 / 1592

页数：11

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