A Review Of Na2SiO3 Additive Concentration And Anodizing Time Effect For Improved Corrosion Resistance And Microhardness Of Zinc Alloy

Marcel, Bartholomeus (2020) A Review Of Na2SiO3 Additive Concentration And Anodizing Time Effect For Improved Corrosion Resistance And Microhardness Of Zinc Alloy. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

[img] Text
02511640000051-Undergraduate_Thesis.pdf - Accepted Version
Restricted to Repository staff only

Download (2MB) | Request a copy

Abstract

Korosi merupakan peristiwa degradasi material karena adanya kontak dengan lingkungan. Salah satu metode untuk menghambat korosi adalah anodizing, yaitu metode perlindungan logam terhadap korosi dengan membentuk dan mempertebal lapisan pasif pada logam. Zinc adalah salah satu logam dengan kemampuan menciptakan lapisan pasif tergantung dari lingkungannya. Lapisan pasif pada zinc ini akan membantu menghambat laju korosi yang terjadi pada zinc, namun lapisan pasif alami pada logam zinc relatif tipis, sehingga sifat ini dapat dikembangkan dengan perlakuan anodizing. Review paper kali ini membahas logam paduan zinc yang diberi perlakuan anodizing dengan variasi konsentrasi aditif Na2SiO3 dan variasi waktu anodizing untuk menguji pengaruh variasi tersebut dalam sifat ketahanan korosi dan microhardness. Dalam menguji sifat sifat tersebut, digunakan pengujian microhardness test dan tafel test. Adapun hasil dari review paper yang dilakukan ialah terdapat konsentrasi aditif Na2SiO3 dan waktu anodizing yang optimum untuk mendapatkan sifat ketahanan korosi yang baik. Pengaruh konsentrasi aditif Na2SiO3 terhadap microhardness logam paduan zinc tidak bersifat linear karena ada titik optimum konsentrasi Na2SiO3 untuk mendapatkan microhardness tertinggi, sedangkan pengaruh waktu anodizing terhadap microhardness logam paduan zinc bersifat linear. ========================================================== Corrosion is a material degradation phenomenon that is caused by contact with environment. One of the method to inhibit the process of corrosion is by using anodizing, which is a method to protect metal from corossion by creating and thickens the passive layer of certain metal. Zinc is one of the few metals that has the ability to create natural passive layer depends on its environment, but the passive layer created naturally by zinc is relatively thin, so it can be improved by the application of anodizing. This paper review is going to discuss about zinc alloy that undergoes anodizing with variance of Na2SiO3 additive concentration and variance of time of anodization to examine their effect on corrosion resistance and microhardness. To test the improved property, tafel test and microhardness test is done. The result of the review is that there is an optimum concentration of Na2SiO3 additive and time of anodization to get the best corrosion resistance. The effect of Na2SiO3 toward microhardness of zinc alloy does not linear, as there is an optimum concentration of Na2SiO3 to achieve highest microhardness, while the effect of anodization time toward microhardness is linear. Corrosion is a material degradation phenomenon that is caused by contact with environment. One of the method to inhibit the process of corrosion is by using anodizing, which is a method to protect metal from corossion by creating and thickens the passive layer of certain metal. Zinc is one of the few metals that has the ability to create natural passive layer depends on its environment, but the passive layer created naturally by zinc is relatively thin, so it can be improved by the application of anodizing. This paper review is going to discuss about zinc alloy that undergoes anodizing with variance of Na2SiO3 additive concentration and variance of time of anodization to examine their effect on corrosion resistance and microhardness. To test the improved property, tafel test and microhardness test is done. The result of the review is that there is an optimum concentration of Na2SiO3 additive and time of anodization to get the best corrosion resistance. The effect of Na2SiO3 toward microhardness of zinc alloy does not linear, as there is an optimum concentration of Na2SiO3 to achieve highest microhardness, while the effect of anodization time toward microhardness is linear.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Logam paduan Zinc, Anodizing, Microhardness, Ketahanan Korosi Zinc Alloy, Anodizing, Corrosion Resistance, Microhardness
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA462 Metal Corrosion and protection against corrosion
T Technology > TA Engineering (General). Civil engineering (General) > TA491 Metal coating.
Divisions: Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User: Bartholomeus Marcel
Date Deposited: 12 Aug 2020 07:37
Last Modified: 12 Aug 2020 07:37
URI: https://repository.its.ac.id/id/eprint/77832

Actions (login required)

View Item View Item