Title

The Effect Of Sacrificial Anode Cathodic Protection On Inhibiting Galvanic, Crevice, And Flat Corrosion In Al-Mg-Si Alloys

Author(s)

Nigam Sheth

School Name

Spring Valley High School

Grade Level

11th Grade

Presentation Topic

Chemistry

Presentation Type

Non-Mentored

Abstract

Recently, there has been great talk about using Sacrificial Anode Cathodic treatments to guard the structural integrity of metal structures from saline corrosion. It is a relatively modern approach to hindering this age old problem but shows great promise. The purpose of this study was to observe and analyze the effect of implementing a Sacrificial Anode Cathodic Protection system on preventing galvanic and crevice corrosion in Al-Mg-Si alloys. It was hypothesised that from each trial pair, the trial that has the SACP done to it will experience about 20% less corrosion than its untreated counterpart. The independent variable in the study is the sacrificial anode cathodic protection treatments. It was used by setting it up in a water tank with the proper parts to provide a complete electrical environment. The time of exposure per trial was 72 hours. The dependent variable was the amount of corrosion experienced by the different situations. The data was unfortunately inconclusive for two of these groups but did show positive results in the Crevice group. This was was the case because the amount of matter decay was much less in the trial groups which had received the SACS treatment. The major finding of this study in particular is that the SACS showed an impressive inhibitive power of corrosion. After data analysis the hypothesis is highly supported by the Crevice group.

Start Date

4-11-2015 3:15 PM

End Date

4-11-2015 3:30 PM

COinS
 
Apr 11th, 3:15 PM Apr 11th, 3:30 PM

The Effect Of Sacrificial Anode Cathodic Protection On Inhibiting Galvanic, Crevice, And Flat Corrosion In Al-Mg-Si Alloys

Recently, there has been great talk about using Sacrificial Anode Cathodic treatments to guard the structural integrity of metal structures from saline corrosion. It is a relatively modern approach to hindering this age old problem but shows great promise. The purpose of this study was to observe and analyze the effect of implementing a Sacrificial Anode Cathodic Protection system on preventing galvanic and crevice corrosion in Al-Mg-Si alloys. It was hypothesised that from each trial pair, the trial that has the SACP done to it will experience about 20% less corrosion than its untreated counterpart. The independent variable in the study is the sacrificial anode cathodic protection treatments. It was used by setting it up in a water tank with the proper parts to provide a complete electrical environment. The time of exposure per trial was 72 hours. The dependent variable was the amount of corrosion experienced by the different situations. The data was unfortunately inconclusive for two of these groups but did show positive results in the Crevice group. This was was the case because the amount of matter decay was much less in the trial groups which had received the SACS treatment. The major finding of this study in particular is that the SACS showed an impressive inhibitive power of corrosion. After data analysis the hypothesis is highly supported by the Crevice group.