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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