Etching of Manganese Aluminum Bronze by Ultrasound in Seawater
-
M. V. Biezma
M. Victoria Biezma-Moraleda is full professor of Materials Science and Engineering of University of Cantabria, Spain. She is currently involved in the study of the relationship between chemical composition, microstructure, and corrosion behaviour of different metallic systems, mainly copper based alloys and superduplex stainless steels, as well as failure analysis of materials.
Omar Gómez is a Master PhD student in Civil Engineering, at the University of Cantabria, Spain. He obtained a research scholarship of Spanish Education Ministery to develop research linked with materials behavior in the Department of Earth and Materials Science and Engineering under supervision of Dr. Biezma-Moraleda.
Abstract
Manganese Aluminum Bronze (MAB), UNS designation C95700, is an alloy widely used for large marine propellers and other components in hydropower units. MAB has a complex microstructure due to precipitation of intermetallic phases as consequence of the cast process or thermal treatments. When investigating the marine corrosion behavior of MAB alloys, it was found that a metallographic etching attack occurred under the effect of ultrasound, similar to that observed with chemical reagents used for high-alloy bronzes. The main aim of this work is to compare the effects of etching on polished metallographic samples by ultrasound in seawater with that obtained with conventional chemical agents. It can be concluded that the effect of ultrasound is able to reveal, with great precision, the microstructure of MAB alloys, without the use of aggressive chemical agents, while the time under the influence of ultrasonic energy allows for fine-tuning the etching effect.
Kurzfassung
Manganaluminiumbronze (MAB), UNS-Bezeichnung C95700, ist eine häufig für große Schiffsschrauben und andere Komponenten in Wasserkraftanlagen verwendete Legierung. Aufgrund der Ausscheidung von intermetallischen Phasen, die auf den Gießprozess bzw. Wärmebehandlungen zurückzuführen sind, weist MAB ein komplexes Gefüge auf. Im Rahmen von Untersuchungen des Korrosionsverhaltens von MAB-Legierungen in Meerwasser wurde festgestellt, dass unter Einwirkung von Ultraschall ein ähnlicher metallographischer Ätzangriff erfolgte wie bei für hochlegierte Bronzen verwendeten chemischen Reagenzien. Hauptanliegen dieses Beitrags ist ein Vergleich der Ätzwirkungen von Ultraschall in Meerwasser bei polierten metallographischen Proben mit der durch herkömmliche chemische Stoffe erzielten Wirkung. Es kann festgehalten werden, dass das Gefüge von MAB-Legierungen durch die Einwirkung von Ultraschall und ohne Einsatz aggressiver chemischer Stoffe mit großer Präzision sichtbar gemacht werden kann. Dabei kann die Ätzwirkung über die Dauer der Einwirkung der Ultraschallenergie fein abgestimmt werden.
About the authors
M. Victoria Biezma-Moraleda
is full professor of Materials Science and Engineering of University of Cantabria, Spain. She is currently involved in the study of the relationship between chemical composition, microstructure, and corrosion behaviour of different metallic systems, mainly copper based alloys and superduplex stainless steels, as well as failure analysis of materials.
Omar Gómez
is a Master PhD student in Civil Engineering, at the University of Cantabria, Spain. He obtained a research scholarship of Spanish Education Ministery to develop research linked with materials behavior in the Department of Earth and Materials Science and Engineering under supervision of Dr. Biezma-Moraleda.
5 Acknowledgment
The authors would like to acknowledge the support of Mr. Koldo Bilbao, Wärtsila Ibérica S.A., by providing the MAB material used in this study. TU Wien Bibliothek is acknowledged for financial support through its Open Access Funding Program.
5 Danksagung
Die Autoren bedanken sich für die Unterstützung durch Herrn Koldo Bilbao, Wärtsilä Ibérica SA, für die Bereitstellung des in dieser Untersuchung verwendeten MAB-Werkstoffs. Der TU Wien Bibliothek wird für die finanzielle Unterstützung im Rahmen ihres Open Access Funding Programms gedankt.
References / Literatur
[1] Qin, Z.; Zhang, Q.; Luo, Q.; Wu,Z.; Shen, B.; Liu, L.; Wenbin Hu, W.: Corros. Sci. 139 (2018), pp 255–266. DOI: 10.1016/j.corsci.2018.04.04310.1016/j.corsci.2018.04.043Search in Google Scholar
[2] Li, X. Y.; Yan, Y. G.; Ma, L.; Xu, Z. M.; Li, J. G.: Mater. Sci. Eng. A 382, (2004) 1/2, pp. 82–89. DOI: 10.1016/j.msea.2004.04.03210.1016/j.msea.2004.04.032Search in Google Scholar
[3] Brezina, P.: Int. Met. Rev. 27(1982) 1, pp. 77–120. DOI: 10.1179/imr.1982.27.1.7710.1179/imr.1982.27.1.77Search in Google Scholar
[4] Culpan, E. A.; Rose, G.: J. Mater. Sci. 13 (1978) 8, pp. 1647–1657. DOI: 10.1007/BF0054872810.1007/BF00548728Search in Google Scholar
[5] Hasan, F.; Jahanafrooz, A.; Lorimer, G. W.; Ridley, N.: Metall. Trans. A. 13A (1982) 8, pp. 1337-1345. DOI: 10.1007/BF0264287010.1007/BF02642870Search in Google Scholar
[6] Cobo, I.; Biezma Moraleda, M. V.; Sánchez, L.: Materiales 1 (2017) 3, pp. 59-62, Accessed: Apr. 03, 2022 URI: http://hdl.handle.net/10902/13668Search in Google Scholar
[7] Song, Q. N.;Xu, N.; Jiang, X.; Liu, Y.; Tong, Y.; Li, J. S.; Bao, Y. F.;Qiao, Y. X.: J. Mater. Eng. Perform. 28 (2019), pp. 4053–4064. DOI: 10.1007/s11249-018-1118-710.1007/s11249-018-1118-7Search in Google Scholar
[8] Linhardt, P.; Strobl, S.; Böhm, J.; Biezma, M. V.; Haubner, R.: Prakt. Metallogr. 58 (2021) 2, pp. 72–82. DOI: 10.1515/pm-2020-000410.1515/pm-2020-0004Search in Google Scholar
[9] Böhm, J.; Linhardt, P.; Strobl, S.; Haubner, R.; Biezma, M. V.: Mater. Perform. Charact. 5 (2016) 5, pp. 689–700. DOI: 10.1520/MPC2016002910.1520/MPC20160029Search in Google Scholar
[10] Iqbal, J.; Hasan, F. Ahmad, F.: J. Mater. Sci. Technol. 22, (2006) 6, pp. 779–784.10.1007/s11390-007-9085-8Search in Google Scholar
[11] Vander Voort, G. F.: Metallography and Microstructures, vol. 9. ASM International, 2004.10.31399/asm.hb.v09.9781627081771Search in Google Scholar
[12] Mmirzadeh Rahni, M. R.; Beidokhti, B.; Haddad-Sabzevar, M.: Trans. Nonferrous Met. Soc. China 27 (2017) 3, pp. 507–513. DOI: 10.1016/S1003-6326(17)60057-810.1016/S1003-6326(17)60057-8Search in Google Scholar
[13] Punburi, P.; Tareelap, N.; Srisukhumbowornchai, N.; Yordsri, V.: Mater. Chem. Phys. 212 (2018), pp. 471–478. DOI: 10.1016/j.matchemphys.2018.03.06510.1016/j.matchemphys.2018.03.065Search in Google Scholar
[14] Trethewey, K. R.; Haley, T. J.; Clark, C. C.; Br. Corros. J. 23 (1988) 1, pp. 55–60. DOI: 10.1179/00070598879827109010.1179/000705988798271090Search in Google Scholar
[15] Punburi, P.; Tareelap, N.; Srisukhumbowornchai, N.; Euaruksakul, C.; Yordsri, V.: Appl. Surf. Sci. 439 (2018), pp. 1040–1046. DOI: 10.1016/j.apsusc.2018.01.01810.1016/j.apsusc.2018.01.018Search in Google Scholar
[16] Song, Q. N.; Tong, Y.; Xu, N.; Sun, S. Y.; Li, H. L.; Bao, Y. F.; Jiang, Y. F.; Wang, Z. B.; Qiao, Y. X.: Wear 450-451 (2020), pp. 203258. DOI: 10.1016/j.wear.2020.20325810.1016/j.wear.2020.203258Search in Google Scholar
[17] Scott, D. A.: Metallography and Microstructure in Ancient and Historic Metals. Los Angeles, California: Getty Conservation Institute, 1991.Search in Google Scholar
[18] Zhai, W.; Lu, W.; Zhang, P.; Zhou, M.; Liu, X.; Zhou, L.: Mater. Sci. Eng. A 707 (2017), pp. 325–336. DOI: 10.1016/j.msea.2017.09.04710.1016/j.msea.2017.09.047Search in Google Scholar
[19] C. H. Tang, F. T. Cheng, and H. C. Man, Surf. Coatings Technol. 182 (2004) 2/3, pp. 300–307. DOI: 10.1016/j.surfcoat.2003.08.04810.1016/j.surfcoat.2003.08.048Search in Google Scholar
© 2022 Walter de Gruyter GmbH, Berlin/Boston, Germany
Articles in the same Issue
- Contents
- Editorial
- Editorial
- Etching of Manganese Aluminum Bronze by Ultrasound in Seawater
- Analysis of pore morphology in oxide electroceramics by automatic image analysis
- Failure Analysis
- Heat Treatment Tests for Reduction of Delta Phase in Alloy 718
- Picture of the Month
- Picture of the Month
- News
- News
- Meeting Diary
- Meeting Diary
Articles in the same Issue
- Contents
- Editorial
- Editorial
- Etching of Manganese Aluminum Bronze by Ultrasound in Seawater
- Analysis of pore morphology in oxide electroceramics by automatic image analysis
- Failure Analysis
- Heat Treatment Tests for Reduction of Delta Phase in Alloy 718
- Picture of the Month
- Picture of the Month
- News
- News
- Meeting Diary
- Meeting Diary
