OPTIMUM CORROSION PROTECTION POTENTIAL FOR WATER CAVITATION PEENING-PROCESSED Al-Mg ALLOY IN SEAWATER

被引：8

作者：

Hyun, Koangyong ^{[1
]}

Kim, Seong-Jong ^{[2
]}

机构：

[1] Shinshu Univ, Fac Engn, Dept Environm Sci & Technol, 4-17-1 Wakasato, Nagano 3808553, Japan

[2] Mokpo Maritime Univ, Div Marine Engn, 91 Haeyangdaehak Ro, Mokpo 58628, South Korea

来源：

SURFACE REVIEW AND LETTERS | 2017年 / 24卷 / 06期

关键词：

Al alloy ships; water cavitation peening; corrosion resistance; ICCP; CATHODIC POLARIZATION; HEAT-TREATMENT; RESISTANCE; ALUMINUM; BEHAVIOR;

D O I：

10.1142/S0218625X18500300

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Chloride ions in seawater can destroy the passive state films on the exposed surface of aluminum (Al) alloy ships. This shortens hull lifespan and increases the maintenance costs of ships. Recently, the water cavitation peening (WCP) technology has been adopted to form compressive residual stress on surfaces to improve resistance to cavitation. This study was conducted to investigate corrosion damage prevention by applying the WCP technology to 5083-O Al alloy for ships; the optimum WCP duration and corrosion protection potential range for maintaining corrosion resistance were determined. We found that the optimum WCP duration was 2.5 min by performing a potentiostatic experiment, and the optimum corrosion protection potential range was -1.30V--0.75V for ICCP system.

引用

页数：8

共 16 条

[1] [Anonymous], INTRO SHOT PEENING P
[2] [Anonymous], P IMECHE C
[3] [Anonymous], 2017, SURF REV LETT, DOI DOI 10.1142/S0218625X17500767
[4] [Anonymous], KOREAN SOC MAR ENV S
[5] On the pressure of cavitation bubbles
Brujan, E. A.
Ikeda, T.
Matsumoto, Y.
[J]. EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2008, 32 (05) : 1188 - 1191
[6] Assessing the long term benefits of Impressed Current Cathodic Protection
Christodoulou, C.
Glass, G.
Webb, J.
Austin, S.
Goodier, C.
[J]. CORROSION SCIENCE, 2010, 52 (08) : 2671 - 2679
[7] ABNORMAL YIELDS OF HYDROGEN AND THE MECHANISM OF ITS EVOLUTION DURING CATHODIC POLARIZATION OF ALUMINUM
DESPIC, AR
RADOSEVIC, J
DABIC, P
KLISKIC, M
[J]. ELECTROCHIMICA ACTA, 1990, 35 (11-12) : 1743 - 1746
[8] Influence of water cavitation peening with aeration on fatigue behaviour of SAE1045 steel
Han, B.
Ju, D. Y.
Jia, W. P.
[J]. APPLIED SURFACE SCIENCE, 2007, 253 (24) : 9342 - 9346
[9] Effects of water cavitation peening on electrochemical characteristic by using micro-droplet cell of Al-Mg alloy
Kim, Seong-Jong
Hyun, Koang-Yong
Jang, Seok-Ki
[J]. CURRENT APPLIED PHYSICS, 2012, 12 : S24 - S30
[10] Kim SJ, 2009, T NONFERR METAL SOC, V19, P887, DOI [10.1016/S1003-6326(08)60371, 10.1016/S1003-6326(08)60371-4]

← 1 2 →