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PENGARUH KOMPOSISI PADUAN Ti-18Mo-xCr DAN PERSEN REDUKSI ROLLING TERHADAP SIFAT MEKANIK DAN SIFAT ELEKTROKIMIA UNTUK APLIKASI BIOMEDIS

Muktian, Rayfan Axel (2023) PENGARUH KOMPOSISI PADUAN Ti-18Mo-xCr DAN PERSEN REDUKSI ROLLING TERHADAP SIFAT MEKANIK DAN SIFAT ELEKTROKIMIA UNTUK APLIKASI BIOMEDIS. S1 thesis, Fakultas Teknik Universitas Sultan Ageng Tirtayasa.

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Abstract

Replacement hips made of metals such as titanium and stainless steel are projected to reach 272,000 units by 2030 as they are expected to contribute to this research and development. The development of orthopedic implants continues to be carried out to obtain implants that have similar properties to cortical bone. The use of titanium and its alloys for biomedical applications continues to increase due to its lightweight, high corrosion resistance, biocompatibility, and mechanical properties including low modulus when compared to other conventional metal biomaterials. This study aims to study the effect of variations in the concentration of elemental Cr and the effect of the percentage of roll deformation on corrosion resistance, and elastic modulus in the Ti-18Mo-xCr alloy. Samples were obtained by casting using a vacuum arc smelting furnace with Cr variations of 0, 3, 5, and 7 wt%. Each sample will undergo a hot rolling process to reduce its elastic modulus value with variations of 0, 30, and 50%. A corrosion test was carried out to determine the resistance of the alloy samples. OES, XRD, and OM analyzes were carried out to see the composition, and the phases formed, and to see the alloy microstructure. The best results for the value of the elastic modulus were obtained from the Ti-18Mo-7Cr sample with a deformation percentage of 50% with a value of 88 GPa. While the best corrosion test results were obtained from the Ti-18Mo-7Cr sample with a corrosion rate value of 3.12 x 10-3. The value of the elastic modulus will decrease with the increase in percent roll deformation caused by grain size and the value of the corrosion rate will decrease with increasing the concentration of Cr used.

Item Type: Thesis (S1)
Contributors:
ContributionContributorsNIP/NIM
Thesis advisorALFIRANO, ALFIRANO197406292003121001
Thesis advisorSENOPATI, GALIH198907012014011001
Additional Information: Penggantian pinggul berbahan logam seperti titanium dan baja tahan karat diproyeksikan mencapai 272.000 unit pada tahun 2030 oleh karena itu diharapkan dapat berkontribusi dalam penelitian dan pengembangan ini. Pengembangan implan ortopedi terus dilakukan untuk mendapatkan implan yang memiliki kemiripan sifat dengan tulang kortikal. Penggunaan titanium dan paduannya untuk aplikasi biomedis terus meningkat karena bobotnya yang ringan, ketahanan korosi yang tinggi, serta biokompatibilitas dan sifat mekanik termasuk modulus yang rendah jika dibandingkan dengan biomaterial logam konvensional lainnya. Penelitian ini bertujuan untuk mempelajari pengaruh variasi konsentrasi unsur Cr dan pengaruh persen deformasi roll terhadap ketahanan korosi, modulus elastisitas pada paduan Ti-18Mo-xCr. Sampel didapat dengan pengecoran menggunakan vacuum arc smelting furnace dengan variasi Cr 0, 3, 5, 7 wt%. Setiap sampel akan melakukan proses hot rolling untuk mengurangi nilai modulus elastisitasnya dengan variasi 0, 30, 50%. Uji korosi dilakukan untuk mengetahui ketahanan korosi pada sampel paduan. Analisis OES, XRD, dan OM dilakukan untuk melihat komposisi, fasa yang terbentuk, dan melihat mikrostruktur paduan. Hasil nilai modulus elastisitas yang terbaik diperoleh dari sampel Ti-18Mo-7Cr dengan persen deformasi sebesar 50% dengan nilai 88 GPa. Sedangkan hasil uji korosi yang terbaik diperoleh dari sampel Ti-18Mo-7Cr dengan nilai laju korosi sebesar 3,12 x 10-3. Nilai modulus elastisitas akan berkurang dengan kenaikan persen deformasi roll yang disebabkan oleh ukuran butir dan nilai laju korosi akan menurun seiring meningkatnya konsentrasi Cr yang digunakan.
Uncontrolled Keywords: Kata Kunci: Titanium beta, Hot rolling, Modulus elastisitas, Kadar Cr
Subjects: T Technology > T Technology (General)
T Technology > TN Mining engineering. Metallurgy
T Technology > TS Manufactures
Divisions: 03-Fakultas Teknik
03-Fakultas Teknik > 27201-Jurusan Teknik Metalurgi
Depositing User: Rayfan Axel Muktian
Date Deposited: 07 Mar 2023 11:21
Last Modified: 27 Mar 2023 11:10
URI: http://eprints.untirta.ac.id/id/eprint/22356

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