Prevention of Dealloying in Manganese Aluminium Bronze Propeller: Part II

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Keywords:
Dealloying corrosion corrosion prevention cathodic protection manganese aluminium bronze (MAB) sacrificial anode

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Napachat Tareelap
Division of Materials Technology, School of Energy, Environment and Materials King Mongkut's University of Technology Thonburi, Bangkok 10140
Kaysinee Sriraksasin
Institute for Scientific and Technological Research and Services (ISTRS) King Mongkut's University of Technology Thonburi, Bangkok 10140
Nakorn Srisukhumbowornchai
Division of Materials Technology, School of Energy, Environment and Materials King Mongkut's University of Technology Thonburi, Bangkok 10140
Swieng Thuanboon
Thonburi Naval Dockyard, The Royal Thai Naval Dockyard, The Royal Thai Navy, Bangkok 10700
Choochat Nitipanyawong
Division of Materials Technology, School of Energy, Environment and Materials King Mongkut's University of Technology Thonburi, Bangkok 10140

Abstract

Due to the failure of manganese aluminium bronze (MAB) propeller caused by dealloying corrosion as described in Part I [1], this work aims to study the prevention of dealloying corrosion using aluminium and zinc sacrificial anodes. The results indicated that both of the sacrificial anodes could prevent the propeller from dealloying. Moreover, the dealloying in seawater was less than that found in brackish water. It was possible that hydroxide ions, from cathodic reaction, reacted with calcium in seawater to form calcium carbonate film protecting the propeller from corrosion.

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How to Cite
Tareelap, N., Sriraksasin, K., Srisukhumbowornchai, N., Thuanboon, S., & Nitipanyawong, C. (2014). Prevention of Dealloying in Manganese Aluminium Bronze Propeller: Part II. Engineering and Applied Science Research, 41(1), 83–90. Retrieved from https://ph01.tci-thaijo.org/index.php/easr/article/view/21764
Issue
Vol. 41 No. 1 (2014)
Section
ORIGINAL RESEARCH

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