relation: https://eprints.untirta.ac.id/47624/
title: PENGARUH GRAIN SIZE DAN VARIASI HOLDING TIME PADA   TEMPERATUR ANNEALING 900°C TERHADAP KEKERASAN   DAN STRUKTUR MIKRO STAINLESS STEEL FOIL 304
creator: Zahra, Nur Alivia
subject: TN Mining engineering. Metallurgy
description: 304 stainless steel foil is a stainless steel material that has a thickness of less than 0.1 mm. 304 stainless steel foil is widely used in various applications, one of which is electronic components that require a combination of corrosion resistance and good mechanical strength. However, after the cold rolling process, 304 stainless steel foil has an increase in hardness value so it is necessary to do an annealing process to reduce the hardness value by varying the holding time. In this study, the hardness value and microstructure of 304 stainless steel foil resulting from the cold rolling process after annealing heat treatment will be studied. Annealing aims to reduce the hardness of the material to make it more optimal in accordance with company standards for electronic component applications. The annealing process is carried out at 900°C with grain size (0.5 μm, 3 μm, and 9 μm) and holding time variations (2 hours, 4 hours, and 6 hours). The results showed that sample A experienced a decrease in hardness value from sample A to A1 by 26%, A to A2 by 32%, and A to A3 by 37%. Sample B had a decrease in hardness value from sample B to B1 by 17%, B to B2 by 22%, and B to B3 by 25%. Sample C experienced a decrease in hardness value from sample C to C1 by 10%, C to C2 by 15%, and C to C3 by 18%. This is in accordance with the microstructure results, where the longer the holding time, the larger the grain size, which causes the hardness value to decrease. Based on this, it is known that grain size and holding time during annealing affect the hardness value and microstructure of 304 stainless steel foil. Where a larger grain size produces a smaller hardness along with a longer holding time during annealing.
date: 2025-02-28
type: Thesis
type: NonPeerReviewed
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identifier: https://eprints.untirta.ac.id/47624/1/Nur%20Alivia%20Zahra_3334200055_Fulltext.pdf
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identifier: https://eprints.untirta.ac.id/47624/2/Nur%20Alivia%20Zahra_3334200055_01.pdf
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identifier: https://eprints.untirta.ac.id/47624/3/Nur%20Alivia%20Zahra_3334200055_02.pdf
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identifier: https://eprints.untirta.ac.id/47624/4/Nur%20Alivia%20Zahra_3334200055_03.pdf
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identifier: https://eprints.untirta.ac.id/47624/5/Nur%20Alivia%20Zahra_3334200055_04.pdf
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identifier: https://eprints.untirta.ac.id/47624/6/Nur%20Alivia%20Zahra_3334200055_05.pdf
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identifier: https://eprints.untirta.ac.id/47624/7/Nur%20Alivia%20Zahra_3334200055_Ref.pdf
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identifier: https://eprints.untirta.ac.id/47624/8/Nur%20Alivia%20Zahra_3334200055_Lamp.pdf
identifier:   Zahra, Nur Alivia  (2025) PENGARUH GRAIN SIZE DAN VARIASI HOLDING TIME PADA TEMPERATUR ANNEALING 900°C TERHADAP KEKERASAN DAN STRUKTUR MIKRO STAINLESS STEEL FOIL 304.  S1 thesis, Fakultas Teknik Universitas Sultan Ageng Tirtayasa.