TY - JOUR
T1 - Development of Al-Zn-Cu Alloy for Low Voltage Aluminum Sacrificial Anode
AU - Ferdian, Deni
AU - Pratesa, Yudha
AU - Togina, Inez
AU - Adelia, Ira
N1 - Publisher Copyright:
© 2017 The Authors.
PY - 2017
Y1 - 2017
N2 - In general, a conventional aluminum anode for seawater service is Aluminum-Zinc-Indium (Al-Zn-In) alloys grade. This type of alloy offers high efficiency and high potential protection in a seawater environment. Nevertheless, there is a limitation for this alloy anode. High protection potential increases the possibility for hydrogen embrittlement in high-strength steel. Therefore, a new Al anode to produce a low voltage properties is being developed. Copper addition as an alloying element reduces the potential protection of aluminum anode. Based on polarization result, the copper addition could reduce the corrosion resistance of aluminum. Furthermore, result from the metallographic examination showed that higher copper content has a higher precipitation in the grain boundary of aluminum. This precipitate in aluminum reduced the protection of passive film and increase the corrosion rate of Al-Zn-Cu alloy as a new sacrificial alloy candidate.
AB - In general, a conventional aluminum anode for seawater service is Aluminum-Zinc-Indium (Al-Zn-In) alloys grade. This type of alloy offers high efficiency and high potential protection in a seawater environment. Nevertheless, there is a limitation for this alloy anode. High protection potential increases the possibility for hydrogen embrittlement in high-strength steel. Therefore, a new Al anode to produce a low voltage properties is being developed. Copper addition as an alloying element reduces the potential protection of aluminum anode. Based on polarization result, the copper addition could reduce the corrosion resistance of aluminum. Furthermore, result from the metallographic examination showed that higher copper content has a higher precipitation in the grain boundary of aluminum. This precipitate in aluminum reduced the protection of passive film and increase the corrosion rate of Al-Zn-Cu alloy as a new sacrificial alloy candidate.
KW - Aluminum Anode
KW - Low voltage
KW - polarization
UR - http://www.scopus.com/inward/record.url?scp=85019995221&partnerID=8YFLogxK
U2 - 10.1016/j.proeng.2017.04.112
DO - 10.1016/j.proeng.2017.04.112
M3 - Conference article
AN - SCOPUS:85019995221
SN - 1877-7058
VL - 184
SP - 418
EP - 422
JO - Procedia Engineering
JF - Procedia Engineering
T2 - Advances in Material and Processing Technologies Conference, AMPT 2017
Y2 - 11 December 2017 through 14 December 2017
ER -