Pengaruh Proses Pengeringan Polyester Putty Terhadap Laju Korosi Dan Mikrostruktur Baja Karbon Rendah St 40 Di Lingkungan Atmosferik Wilayah Jember Skripsi

Bachtiar, Arief (2021) Pengaruh Proses Pengeringan Polyester Putty Terhadap Laju Korosi Dan Mikrostruktur Baja Karbon Rendah St 40 Di Lingkungan Atmosferik Wilayah Jember Skripsi. Diploma thesis, Politeknik Negeri Jember.

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Abstract

Corrosion is a form of breakdown that occurs in metal. There are many causes of corrosion in a metal, one of which is the atmosphere. Corrosion itself cannot be eliminated but the corrosion rate can be inhibited. There are several ways to inhibit the corrosion rate, one of which is using polyester putty. In this study, ST 40 steel and polyester putty is used as coatings/inhibitors. The used variations is ST 40 steel without coating, ST 40 steel with forced drying polyester putty coating, and ST 40 steel with normal drying polyester putty coating. Placement of specimens in the atmospheric environment is in Ambulu and in Silo. The atmospheric environment in both places is still in the good category because the corrosion rate is at 1-5 mpy. The use of polyester putty as a coating in both places is included in the less and sufficient category because it has inhibitor efficiency between 21-40% and 41-60%. Keywords: ST 40 steel, polyester putty, corrosion rate, atmospheric environment

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