ANALISIS LAJU KOROSI PADA BAJA KARBON MENENGAH AKIBAT PERLAKUAN PANAS BERTINGKAT DENGAN MEDIA AIR LAUT

Sitanggang, Samuel Romulus (2023) ANALISIS LAJU KOROSI PADA BAJA KARBON MENENGAH AKIBAT PERLAKUAN PANAS BERTINGKAT DENGAN MEDIA AIR LAUT. S-1 thesis, 021008-Universitas Tridinanti Palembang.

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Abstract

ABSTRAK Baja karbon Menengah banyak dipakai sebagai bahan konstruksi, perkapalan, dan lain sebagainya. Dengan perlakuan panas tidak saja sifat mekaniknya yang berubah, namun sifat ketahanan korosinya juga berubah. Pada penelitian ini dilakuan benda uji baja AISI 1040 yang mendapat perlakuan panas Annealing pada temperature 820oC, 840oC dan 860oC ditahan selama 10 menit dilanjutkan pendinginan didalam Furnace. Dari perlakuan tersebut strukturnya tidak berubah terhadap benda asal yaitu pearlite, namun terjadi perubahan ukuran butirannya. Dengan perlakuan tersebut selanjutnya semua benda uji diuji korosi didalam air laut selama 5 hari. Laju korosi yang terjadi pada benda uji yang mendapat perlakuan panas pada temperature 820oC, 840oC dan 860oC dan hasil laju korosi 0.07769 mm/year, 0.07950 mm/year, dan 0.08208 mm/year, ternyata laju korosi tersebut lebih tinggi dibandingkan dengan benda asal (0.07163 mm/year). Dari masing-masing benda uji diperoleh bentuk korosinya adalah korosi Merata. Kata Kunci: Annealing, Laju Korosi, Baja Karbon Menengah ABSTRACT Medium carbon steel is widely used as a construction material, shipping, and so on. With heat treatment not only do the mechanical properties change, but the corrosion resistance properties also change. In this research, AISI 1040 steel specimens were tested which received annealing heat treatment at temperatures of 820oC, 840oC and 860oC and were held for 10 minutes followed by cooling in the furnace. From this treatment, the structure does not change relative to the original object, namely pearlite, but there is a change in the grain size. With this treatment, all test objects were then tested for corrosion in sea water for 5 days. The corrosion rate that occurred on test objects that received heat treatment at temperatures of 820oC, 840oC and 860oC and the resulting corrosion rates were 0.07769 mm/year, 0.07950 mm/year and 0.08208 mm/year, it turns out that the corrosion rate was higher compared to the original object (0.07163 mm/year). From each test object, the form of corrosion was uniform corrosion. Keywords: Annealing, Corrosion Rate, Medium Carbon Steel

Item Type:	Thesis (S-1)
Subjects:	T Technology > TJ Mechanical engineering and machinery
Depositing User:	Samuel Romulus Sitanggang Sitanggang
Date Deposited:	17 Nov 2023 03:40
Last Modified:	17 Nov 2023 03:40
URI:	http://repository.univ-tridinanti.ac.id/id/eprint/7880

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