Pemetaan Tingkat Korosifitas Atmosfer di Wilayah Kota Surabaya dengan Indikator Logam Baja AISI 1005

Rahmawati, Faradilla (2024) Pemetaan Tingkat Korosifitas Atmosfer di Wilayah Kota Surabaya dengan Indikator Logam Baja AISI 1005. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Surabaya memiliki iklim tropis yang tentunya akan berpengaruh pada laju korosi suatu logam. Tujuan dari penelitian ini adalah melakukan pemetaan pada laju korosifitas Baja AISI 1005, mengetahui pengaruh lingkungan terhadap Baja AISI 1005, dan pengaruh proses annealing pada tingkat korosifitas Baja AISI 1005. Logam yang digunakan dalam penelitian ini adalah Baja AISI 1005 yang dipaparkan di 5 wilayah Surabaya selama 75 hari. Selain itu, penelitian ini juga melakukan perlakuan panas Annealing pada spesimen uji. Perhitungan laju korosi menggunakan metode weight loss dan pengujian XRD dilakukan untuk mengetahui produk korosi yang terbentuk. Hasil penelitian ini menyimpulkan bahwa tingkat korosifitas Baja AISI 1005 dengan perlakuan annealing dari yang paling tinggi adalah Rungkut (3,6398 mpy), Asemrowo (2,4109 mpy), Tandes (2,2097 mpy), Wonokromo (2,0158 mpy), Bulak (1,1737 mpy), Gubeng (1,1319 mpy), Pabean Cantikan (1,0652 mpy), Pakal (1,0435 mpy), Simokerto (1,0140 mpy), Sukolilo (0,9433 mpy), Kenjeran (0,9129 mpy), Bubutan (0,5029 mpy), Jambangan (0,4500 mpy), Tegalsari (0,3950 mpy), dan Wiyung (0,3889 mpy). Sedangkan, tingkat korosifitas Baja AISI 1005 tanpa perlakuan dari yang paling tinggi adalah Rungkut (2,7257 mpy), Wonokromo (1,8326 mpy), Asemrowo (1,7377 mpy), Tandes (1,3014 mpy), Bulak (1,0662 mpy), Gubeng (1,0489 mpy), Pabean Cantikan (0,9598 mpy), Pakal (0,9555 mpy), Sukolilo (0,8071 mpy), Kenjeran (0,7554 mpy), Simokerto (0,5545 mpy), Bubutan (0,4174 mpy), Jambangan (0,3542 mpy), Tegalsari (0,3522 mpy), dan Wiyung (0,1854 mpy). Pemetaan ini dilakukan berdasarkan laju korosi setiap kecamatan yang dapat dipengaruhi oleh adanya industri yang masih aktif, dan letak geografis, seperti kawasan maritim dan kawasan padat penduduk. Pada penelitian ini dibandingkan juga laju korosi antara logam dengan perlakuan annealing dan tanpa perlakuan. Logam dengan perlakuan panas annealing memiliki ketahanan korosi yang lebih buruk dibandingkan logam tanpa perlakuan. Hal ini dikarenakan ukuran ferrite pada spesimen dengan perlakuan annealing lebih besar sehingga lebih rentan terhadap korosi. Ferrite lebih rentan terhadap korosi karena kaya akan besi (Fe) dan nilai potensialnya yang lebih rendah daripada pearlite.
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Surabaya has a tropical climate which of course will affect the corrosion rate of metal. The aim of this research is to carry out mapping on AISI 1005 Steel, determine the environmental influence on AISI 1005 Steel, and determine the effect of the annealing process on the level of corrosivity of AISI 1005 Steel. The metal used in this research is AISI 1005 Steel which was exposed in 5 areas of Surabaya for 75 days. In addition, this study also conducted annealing heat treatment on the test specimens. Calculation of the corrosion rate using the weight loss method and XRD testing was carried out to determine the corrosion products formed. The results of this study concluded that the corrosivity rate of AISI 1005 steel with annealing treatment from the highest is Rungkut (3,6398 mpy), Asemrowo (2,4109 mpy), Tandes (2,2097 mpy), Wonokromo (2,0158 mpy), Bulak (1,1737 mpy), Gubeng (1,1319 mpy), Pabean Cantikan (1,0652 mpy), Pakal (1,0435 mpy), Simokerto (1,0140 mpy), Sukolilo (0,9433 mpy), Kenjeran (0,9129 mpy), Bubutan (0,5029 mpy), Jambangan (0,4500 mpy), Tegalsari (0,3950 mpy), and Wiyung (0,3889 mpy). Meanwhile, the corrosivity level of AISI 1005 steel without treatment from the highest is Rungkut (2,7257 mpy), Wonokromo (1,8326 mpy), Asemrowo (1,7377 mpy), Tandes (1,3014 mpy), Bulak (1,0662 mpy), Gubeng (1,0489 mpy), Pabean Cantikan (0,9598 mpy), Pakal (0,9555 mpy), Sukolilo (0,8071 mpy), Kenjeran (0,7554 mpy), Simokerto (0,5545 mpy), Bubutan (0,4174 mpy), Jambangan (0,3542 mpy), Tegalsari (0,3522 mpy), and Wiyung (0,1854 mpy). This mapping is done based on the corrosion rate of each sub-district which can be influenced by the presence of active industries, and geographical locations, such as maritime areas and densely populated areas. This study also compared corrosion rates between annealed and untreated metals. Metals with annealing heat treatment have worse corrosion resistance than untreated metals. This is because the ferrite size in the specimens with annealing treatment is larger, making them more susceptible to corrosion. This is because ferrite which is rich in iron (Fe) is more susceptible to corrosion due to its lower potential value than pearlite.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Baja AISI 1005, Korosi Atmosfer, Laju Korosi, Pemetaan, Weight Loss, AISI 1005 Steel, Atmospheric Corrosion, Corrosion Rate, Mapping
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA418.74 Corrosion and anti-corrosives T Technology > TA Engineering (General). Civil engineering (General) > TA418.75 Corrosion-resistant materials T Technology > TA Engineering (General). Civil engineering (General) > TA462 Metal Corrosion and protection against corrosion T Technology > TA Engineering (General). Civil engineering (General) > TA467 Iron and Steel Corrosion and protection against corrosion
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	Faradilla Rahmawati
Date Deposited:	05 Feb 2024 06:25
Last Modified:	05 Feb 2024 06:25
URI:	http://repository.its.ac.id/id/eprint/106088

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