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PENGARUH QUENCHING SETELAH PENGELASAN TERHADAP KOROSI DI BAWAH INSULASI MEDIA AIR LAUT PADA BAJA A36

Main Author: Ridho, Arda Roshid
Format: Article info Journal
Bahasa: eng
Terbitan: Pt. Anagata Sembagi Education , 2024
Subjects:
ASTM A36
corrosion under insulation
welding
quenching
Online Access: https://nawalaeducation.com/index.php/JORE/article/view/77
https://nawalaeducation.com/index.php/JORE/article/view/77/55
ctrlnum article-77
fullrecord <?xml version="1.0"?> <dc schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><title lang="en">PENGARUH QUENCHING SETELAH PENGELASAN TERHADAP KOROSI DI BAWAH INSULASI MEDIA AIR LAUT PADA BAJA A36</title><creator lang="en">Ridho, Arda Roshid</creator><subject lang="en">ASTM A36</subject><subject lang="en">corrosion under insulation</subject><subject lang="en">welding</subject><subject lang="en">quenching</subject><description lang="en">Corrosion in low-carbon steel is a significant issue in the industrial world, particularly in the oil, gas, refining, and chemical industries, as it leads to substantial financial losses. The total losses experienced by companies in Indonesia are estimated to reach 2-5% of the country's GDP. Corrosion arising from insulation damage, known as Corrosion Under Insulation (CUI), is challenging to detect but has a profound impact on industrial processes. Welding quality and corrosion resistance can be improved through post-weld heat treatment (PWHT). This research aims to investigate the influence of rapid cooling after welding low-carbon ASTM A36 steel on corrosion events under insulation using the "Water Immersion" method with seawater from the Muntok area, Bangka Belitung Islands Province, for 7 and 14 days. The welding process is performed using shielded metal arc welding (SMAW). Heat treatment is applied at 880&#xB0;C for 60 minutes, as determined by the carbon equivalent calculation, followed by rapid cooling in seawater. Testing includes chemical composition analysis, non-destructive testing with dye penetrant on the welds, Brinell hardness testing, corrosion rate calculations, charpy impact testing, and metallography observations. The research results indicate that quenching enhances hardness and toughness while affecting the corrosion rate of the material after corrosion immersion, both with and without insulation. Material immersion exhibits a corrosion rate inhibition on the 14th day due to the formation of an oxide layer that hinders further degradation. Metallography observations reveal that after welding, phases formed include pearlite, acicular ferrite, and widmanstatten structures.</description><publisher lang="en">Pt. Anagata Sembagi Education</publisher><date>2024-03-04</date><type>Journal:Article</type><type>Other:info:eu-repo/semantics/publishedVersion</type><type>Journal:Article</type><identifier>https://nawalaeducation.com/index.php/JORE/article/view/77</identifier><identifier>10.62872/dmzsck14</identifier><source lang="en">Journal of Renewable Engineering; Vol. 1 No. 1 (2024): JORE-Maret</source><source>3046-7624</source><source>10.62872/72yq5428</source><language>eng</language><relation>https://nawalaeducation.com/index.php/JORE/article/view/77/55</relation><rights lang="en">Copyright (c) 2024 Journal of Renewable Engineering</rights><recordID>article-77</recordID></dc>
language eng
format Journal:Article
Journal
Other:info:eu-repo/semantics/publishedVersion
Other
Journal:Journal
author Ridho, Arda Roshid
title PENGARUH QUENCHING SETELAH PENGELASAN TERHADAP KOROSI DI BAWAH INSULASI MEDIA AIR LAUT PADA BAJA A36
publisher Pt. Anagata Sembagi Education
publishDate 2024
topic ASTM A36
corrosion under insulation
welding
quenching
url https://nawalaeducation.com/index.php/JORE/article/view/77
https://nawalaeducation.com/index.php/JORE/article/view/77/55
contents Corrosion in low-carbon steel is a significant issue in the industrial world, particularly in the oil, gas, refining, and chemical industries, as it leads to substantial financial losses. The total losses experienced by companies in Indonesia are estimated to reach 2-5% of the country's GDP. Corrosion arising from insulation damage, known as Corrosion Under Insulation (CUI), is challenging to detect but has a profound impact on industrial processes. Welding quality and corrosion resistance can be improved through post-weld heat treatment (PWHT). This research aims to investigate the influence of rapid cooling after welding low-carbon ASTM A36 steel on corrosion events under insulation using the "Water Immersion" method with seawater from the Muntok area, Bangka Belitung Islands Province, for 7 and 14 days. The welding process is performed using shielded metal arc welding (SMAW). Heat treatment is applied at 880°C for 60 minutes, as determined by the carbon equivalent calculation, followed by rapid cooling in seawater. Testing includes chemical composition analysis, non-destructive testing with dye penetrant on the welds, Brinell hardness testing, corrosion rate calculations, charpy impact testing, and metallography observations. The research results indicate that quenching enhances hardness and toughness while affecting the corrosion rate of the material after corrosion immersion, both with and without insulation. Material immersion exhibits a corrosion rate inhibition on the 14th day due to the formation of an oxide layer that hinders further degradation. Metallography observations reveal that after welding, phases formed include pearlite, acicular ferrite, and widmanstatten structures.
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institution PT Anagata Sembagi Education
institution_id 10827
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library_id 8012
collection Journal of Renewable Engineering
repository_id 20309
subject_area Renewable Engineering
city KOTA JAMBI
province JAMBI
repoId IOS20309
first_indexed 2024-06-13T01:46:48Z
last_indexed 2024-06-13T01:46:48Z
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