Pengaruh Temperatur Perlakuan Panas Aging Dan Ketebalan Lapisan Aluminium Hasil ARC Spray Terhadap Coating Integrity Dan Ketahanan Korosi Pada Baja AISI 1018 Di Lingkungan Air Laut

Rifki, Muhammad (2018) Pengaruh Temperatur Perlakuan Panas Aging Dan Ketebalan Lapisan Aluminium Hasil ARC Spray Terhadap Coating Integrity Dan Ketahanan Korosi Pada Baja AISI 1018 Di Lingkungan Air Laut. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada penelitian ini didiskusikan pengaruh temperatur proses aging dan ketebalan lapisan aluminium yang terbentuk dari thermal arc spray aluminium coating terhadap coating integrity dan ketahanan korosi. Kawat aluminium dengan kemurnian 99.80% berdiameter 1.6 mm digunakan sebagai coating material. Material substrat yang digunakan adalah baja AISI 1018. Variabel yang digunakan pada eksperimen ini adalah ketebalan coating aluminium, 200 dan 300 mikron dan temperatur aging, 150, 300, dan 450 °C. Penelitian ini bertujuan untuk menganalisa pengaruh temperatur aging dan ketebalan lapisan aluminium terhadap ketebalan coating integrity dan ketahanan korosi pada material substrat. Metode pada penelitian ini adalah, material substrat dilapisi dengan kawat aluminium menggunakan teknik arc spray, lalu diberi proses aging di dalam furnace. Pengujian yang dilakukan pada eksperimen ini adalah DFT, pull off test, bending test, XRD, SEM, dan uji ketahanan korosi. Hasil dari uji SEM dan EDAX menunjukkan lapisan senyawa intermetalik dengan komposisi Fe dan Al muncul setelah proses aging dengan temperatur 450 °C. Lapisan senyawa intermetalik hasil proses aging meningkatkan hasil uji pull off yang semakin baik dengan meningkatnya temperatur proses aging. Nilai uji pull off yang tertinggi adalah 8.23 MPa pada spesimen dengan ketebalan coating 300 mikron dan temperatur aging 450 °C. Sifat ketahanan korosi semakin baik dengan meningkatnya ketebalan coating aluminium dan temperatur proses aging karena lapisan senyawa intermetalik memberikan sifat ketahanan korosi yang lebih baik. ================ In this study is discussed about the effect of temperature of aging process and coating thickness of aluminium by thermal arc spray coating to coating integrity and corrosion resistance. Aluminium wire with 99.80% purity and the diameter is 16 mm is used as the coating material. AISI 1018 steel is used as the substrate. The variable of this experiment is the coating thikcness of aluminium, 200 and 300 micron, and the temperature of aging process, 150, 300, and 450 °C. This research is aimed to analyze the effect of temperature of aging process and the thickness of aluminium coating to coating integrity and corrosion resistance of substrate. The method of this research is the substrate is coated by aluminium wire by arc spray technique, then heated by aging process inside furnace. The tests that has been done in this experiment are DFT, pull off test, bending test, XRD, SEM, and corrosion resistance test, The result is a intermetallic compound layer will be formed by aging process in 450 °C. Intermetallic compound layer by aging process increase result of pull off test by the increase of temperature of aging process. The highest of pull off test is 8.23 MPa that obtained by the speciment with 300 micron coating thickness and heated by aing process in 450 °C. Corrosion resistance properties was increased with the increasing of aging temperature, since intermetallic compound layer provide barrier to steel surface.

Item Type: Thesis (Undergraduate)
Additional Information: RSMt 667.9 Rif p
Uncontrolled Keywords: korosi, coating, thermal spray, coating integrity, corrosion, coating, thermal spray, coating integrity
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA418.74 Corrosion and anti-corrosives
T Technology > TA Engineering (General). Civil engineering (General) > TA491 Metal coating.
T Technology > TS Manufactures
Divisions: Faculty of Industrial Technology > Material & Metallurgical Engineering > (S1) Undergraduate Theses
Depositing User: Muhammad Rifki
Date Deposited: 20 Dec 2018 03:13
Last Modified: 20 Dec 2018 03:13
URI: http://repository.its.ac.id/id/eprint/53347

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