Studi Pengaruh Waktu Oksidasi Terhadap Kinetika Oksidasi, Morfologi Oksida, Dan Kekerasan Pada Proses Oksidasi Titanium Di Udara Dengan Temperatur Konstan

Rizky, Febrina Fahma (2023) Studi Pengaruh Waktu Oksidasi Terhadap Kinetika Oksidasi, Morfologi Oksida, Dan Kekerasan Pada Proses Oksidasi Titanium Di Udara Dengan Temperatur Konstan. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pemulihan industri manufaktur dari COVID-19 tidak merata. Beberapa daerah berpenghasilan tinggi, mencapai rekor nilai tambah manufaktur tertinggi per kapita pada tahun 2022. Namun pada tingkat Least Developed Countries (LDC) tidak jauh lebih tinggi dari garis dasar tahun 2015. Setelah krisis pandemi berakhir, data menunjukkan bahwa industri dengan teknologi tinggi pulih lebih cepat dan terbukti lebih tangguh. Salah satu penelitian yang dilakukan yaitu inovasi terkait teknologi efisiensi pembangkit energi. Contoh teknologi di bidang energi yaitu pembangkit listrik, industri minyak dan gas bumi, dan industri manufaktur. Bidang energi ini memiliki peran vital dalam memenuhi kebutuhan manusia sehari-hari. Adapun pendekatan terkait efisiensi pembangkit energi dapat ditinjau dari temperatur operasi, dimana semakin tinggi temperatur operasi maka semakin tinggi efisiensi yang dapat diperoleh. Material dengan unsur titanium banyak digunakan dalam lingkungan temperatur tinggi, baik dalam berupa Commercially Pure Titanium (CP-Ti) maupun paduan titanium. Adapun paduan titanium yang seringkali digunakan dalam lingkungan temperatur tinggi di indutri yaitu Ti-Al-Mn. Adapun variasi waktu oksidasi yang dianalisis pada penelitian ini adalah 30, 60, 90, dan 120 menit dengan temperatur konstan 700⁰C. Dengan beberapa analisis yang dilakukan yaitu penimbangan massa gudengan tujuan untuk mendapatkan grafik kinetika oksidasi dan pengujian karakterisasi seperti pengujian XRD, SEM, kekerasan, pengamatan metalografi dan pengamatan visual. Berdasarkan hasil analisis kinetika oksidasi didapatkan bahwa laju oksidasi semakin meningkat seiring naiknya temperatur dan membentuk tren parabolik. Adapun pada temperatur 700⁰C terjadi korosi breakaway yang menyebabkan kenaikan laju oksidasi kembali. Berdasarkan hasil pengujian XRD diketahui bahwa pada temperatur 700⁰C, fase oksida didominasi oleh rutile. Berdasarkan hasil uji kekerasan yaitu nilai kekerasan semakin tinggi seiring naiknya aktu oksidasi. Pada waktu oksidasi 30, 60, dan 90 menit terjadi kenaikan kekerasan yakni 274,4 HV, 303,6 HV, dan 337,9 HV dari kekerasan sebelum oksidasi di angka 252.9 VHN. Sedangkan pada waktu oksidasi 120 menit terjadi penurunan kekerasan yaitu menjadi 317,63 HV
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The manufacturing industry's recovery from COVID-19 has been uneven. Several high-income regions recorded the highest manufacturing added value per capita in 2022. However, at the Least Developed Countries (LDC) level it was not much higher than the 2015 baseline. After the pandemic crisis ended, data shows that high-tech industries recovered faster and proved to be more resilient. One of the studies conducted is innovation related to energy efficiency technology. Examples of technology in the energy sector are power plants, the oil and gas industry, and the manufacturing industry. This energy field has a vital role in meeting human daily needs. The approach related to energy generation efficiency can be seen from the operating temperature, where the higher the operating temperature, the higher the efficiency that can be obtained. Materials containing titanium are widely used in high temperature environments, both in the form of Commercially Pure Titanium (CP-Ti) and titanium alloys. The titanium alloy that is often used in high temperature environments in industry is Ti-Al-Mn. The variations in oxidation time analyzed in this study were 30, 60, 90, and 120 minutes at a constant temperature of 700⁰C. With several analyzes carried out, namely weighing the mass of gu with the aim of obtaining a graph of oxidation kinetics and characterization tests such as testing XRD, SEM, hardness, metallographic observations and visual observations. Based on the results of the analysis of oxidation kinetics, it was found that the rate of oxidation increased with increasing temperature and formed a parabolic trend. As for the temperature of 700⁰C breakaway corrosion occurs which causes an increase in the rate of oxidation again. Based on the results of the XRD test, it is known that at a temperature of 700⁰C, the oxide phase is dominated by rutile. Based on the results of the hardness test, the hardness value increases as the oxidation time increases. At 30, 60, and 90 minutes of oxidation, there was an increase in hardness, namely 274.4 HV, 303.6 HV, and 337.9 HV from the hardness before oxidation at 252.9 HV. Meanwhile, at 120 minutes of oxidation time, the hardness decreased to 317.63 HV

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Korosi Temperatur Tinggi, Oksidasi, Titanium, Ti-Al-Mn, Rutile, High Temperature Corrosion, Oxidation, Titanium, Ti-Al-Mn, Rutile
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
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	Febrina Fahma Rizky
Date Deposited:	28 Jul 2023 14:52
Last Modified:	28 Jul 2023 14:52
URI:	http://repository.its.ac.id/id/eprint/99682

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