Comparación entre los diagramas TTS obtenidos mediante los ensayos normalizados Huey y Strauss modificado para el acero inoxidable AISI 304

E. Otero; A. Pardo; E. Sáenz; M. V. Utrilla; F. J. Rodríguez

doi:10.3989/revmetalm.1996.v32.i2.918

Comparison between TTS diagrams obtained by Huey and modified Strauss standard tests for AISI 304 stainless steel

Authors

E. Otero Dpto. de Ciencia de Materiales e Ingeniería Metalúrgica. Facultad de Ciencias Químicas. Universidad Complutense
A. Pardo Dpto. de Ciencia de Materiales e Ingeniería Metalúrgica. Facultad de Ciencias Químicas. Universidad Complutense
E. Sáenz Lab. de Corrosión. Facultad de Ciencias e Ingeniería. Pontificia Universidad Católica del Perú
M. V. Utrilla Dpto. de Ciencia de Materiales e Ingeniería Metalúrgica. Facultad de Ciencias Químicas. Universidad Complutense
F. J. Rodríguez Dpto. de Ciencia de Materiales e Ingeniería Metalúrgica. Facultad de Ciencias Químicas. Universidad Complutense

DOI:

https://doi.org/10.3989/revmetalm.1996.v32.i2.918

Keywords:

Austenitic stainless steel, Intergranular corrosion, Huey test, Modified Strauss test, Sensitization

Abstract

This work presents a comparison of Temperature-Time-Sensitization TTS diagrams obtained by Huey and modified Strauss standard, for detecting susceptibility to intergranular attack. The difference between these tests is the use of a strong or a slightly smooth oxidizing electrolyte. The diagrams obtained are different and if a sample tested by modified Strauss is sensitized, then it will be sensitized in the Huey test, but the contrary is not always true. This difference is because a sensitized sample has to have a continuous band lacking in chromium along the grain boundary in order to be sensitized in the modified Strauss test. This condition is not necessary in the Huey test.

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Published

1996-04-30

How to Cite

Otero, E., Pardo, A., Sáenz, E., Utrilla, M. V., & Rodríguez, F. J. (1996). Comparison between TTS diagrams obtained by Huey and modified Strauss standard tests for AISI 304 stainless steel. Revista De Metalurgia, 32(2), 75–82. https://doi.org/10.3989/revmetalm.1996.v32.i2.918

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Issue

Vol. 32 No. 2 (1996)

Section

Articles

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