Effect of the environment on the interpretation of the metallic fracture surfaces
Keywords:
Fractography, ultrasonic cleaning, fracture management
Abstract
Contamination of metallic fractures is detrimental, since the information related with the fracture process can be lost. As rust, humidity, foreign debris, etc., on metallic fracture surfaces can give false information about a failure event, the preservation of fractured samples is critical for failure analysis. In this investigation four (4) impact fracture surfaces of ASTM A-36 steel were placed outdoor in Puerto Cabello, Venezuela, for a period of 6 months. Then, an evaluation of the fractured surfaces was performed, using a stereoscopic magnifying glass, to observe the growth of corrosion products. The results indicate that the information related to the general fracture process can be lost because of the environmental impact.Downloads
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References
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[4] Y. Guevara, “Análisis de falla del eje agotador del reactor 406 de la empresa Tripoliven,” Pregrado, Dept. Met. Instituto Universitario de Tecnología Puerto Cabello, Venezuela, 2013.
[5] S. Mukhopadhyay, “Sample Preparation Techniques for Characterization of Solid Surfaces and Films,” Sample Preparation Techniques in Chemical Measurements, Edited by S. Mitra, John Wiley & Sons, 2003. Recuperado de https://www.google.com.co/url?sa=t-&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwi0qMPDhN_NAhWE8x4KHda4CfYQFggmMAE&url=http%3A%2F%2Fwww.spectroscopynow.com%2Fuserfiles%2Fsepspec%2Ffile%2FspecNOW%2FTutorials%2Fsample_prep_mitra_377-412.pdf&usg=AFQjCNH3sKiSZ9r9gjjojcW9dZsyNoFkow
[6] ASM Metals Handbook: “Fractography”, vol. 12, ASM International, Materials Park ASM International. Park, Ohio, p. 141, 2004.
[7] ASTM E-23, “Standard Method for Notched Bar Impact Testing of Metallic Materials,” 1982.
[8] Gil, L., “Corrosión Atmosférica,” L. Gil (comps.). Fundamentos de Corrosión, pp. 159-170, 2000. Venezuela: Universidad Experimental Politécnica Antonio José de Sucre.
[9] ASM Metals Handbook: “Corrosion”, vol. 13, ASM International, Materials Park ASM International. Park, Ohio, pp. 2406-2410, 2004.
[10] C Pereira, “Evaluación del comportamiento del acero estructural ASTM A-36 con recubrimiento de pintura anticorrosivo epoxica y alquídica en el ambiente marino de la empresa pequiven y con el equipo de niebla salina del IUTPC,” Pregrado, Dept. Met. Instituto Universitario de Tecnología Puerto Cabello, Venezuela, 2013.
[11] L. Gil, V. Maizo, O. León, M. Martínez, L. D´Ónofrio y F. Gómez, “Evaluación de la resistencia a la corrosión atmosférica de los aceros Siderúrgica del Orinoco (SIDOR) ARCO (A-588) y acero al carbono (A-36) en medio rural,” Revista Universidad, Ciencia y Tecnología, Año 1, no. 2, pp. 30-36, Jun. 1997.
[12] ASM Metals Handbook: “Failure Analysis and Prevention”, vol. 11, ASM International, Materials Park ASM International. Park, Ohio, p. 835, 2005.
Published
2016-09-23
How to Cite
Medina-Alcína, F. (2016). Effect of the environment on the interpretation of the metallic fracture surfaces. ITECKNE, 13(2), 169-173. https://doi.org/https://doi.org/10.15332/iteckne.v13i2.1483
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Section
Research and Innovation Articles
