Potential Difference of Cyclic Polarization Curve of an Aircraft Al Alloy: Delta E (E-sec,E-corr - E-corr)

Sun, Qingqing1,2; Chen, Kanghua2

2020-05

10.33961/jecst.2019.00507

Journal of Electrochemical Science and Technology   影响因子和分区

2093-8551

This paper presents a hypothesis and its experimental validation that Delta E (E-sec,E-corr - E-corr) of cyclic polarization curve of an Al-Zn-Mg-Cu alloy decreases firstly and then increases with the increasing of corrosion rate or corroded fraction F-corr of alloy surface. The minimum value of Delta E is obtained when F-corr approximate to 50%. In addition, a proportional relationship between Delta E and vertical bar 50% - F-corr vertical bar was found. This non-monotonic relation between.E and extent of localized corrosion indicates that additional attention should be paid on using Delta E to assess localized corrosion behaviour of Al-Zn-Mg-Cu alloys.

7150 Al Alloy Cyclic Polarization Potential Difference Localized Corrosion

SCI

英语

第一 ; 通讯

National Key Research and Development Program of China[2016YFB0300801] ; Guangdong Young Innovative Talent Project[2018KQNCX227]

Electrochemistry

Electrochemistry

WOS:000537946600004

KOREAN ELECTROCHEMISTRY SOC

Web of Science

1.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Guangdong, Peoples R China
2.Cent South Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China

Sun, Qingqing,Chen, Kanghua. Potential Difference of Cyclic Polarization Curve of an Aircraft Al Alloy: Delta E (E-sec,E-corr - E-corr)[J]. Journal of Electrochemical Science and Technology,2020,11(2):140-147.

Sun, Qingqing,&Chen, Kanghua.(2020).Potential Difference of Cyclic Polarization Curve of an Aircraft Al Alloy: Delta E (E-sec,E-corr - E-corr).Journal of Electrochemical Science and Technology,11(2),140-147.

Sun, Qingqing,et al."Potential Difference of Cyclic Polarization Curve of an Aircraft Al Alloy: Delta E (E-sec,E-corr - E-corr)".Journal of Electrochemical Science and Technology 11.2(2020):140-147.