Article Per Year (5 Year)
p-Index From 2019 - 2024
0.92
P-Index
This Author published in this journals
All Journal Journal of Mechanical Engineering Science and Technology Jurnal Rekayasa Material, Manufaktur & Energi Mekanika: Majalah Ilmiah Mekanika Journal of Metallurgical Engineering and Processing Technology
Agris Setiawan
Universitas Pembangunan Nasional "Veteran" Yogyakarta
Aerospace Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

Published : 5 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 5 Documents
Search

 1 
PENGARUH TEMPERATUR DAN HOLDING TIME DALAM PROSES TEMPERING TERHADAP SIFAT MEKANIK PIPA LOW CARBON STEEL LOW ALLOY GRADE X65Q Agris Setiawan; Bayu Yoga Pamungkas
Journal of Metallurgical Engineering and Processing Technology Vol 3, No 1 (August 2022)
Publisher : UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jmept.v3i1.6538

Abstract

Baja adalah logam paduan dengan besi sebagai unsur dasar dan karbon sebagai unsur paduan utamanya. Kandungan karbon dalam baja berkisar antara 0.2% hingga 2.1% berat sesuai grade-nya. Fungsi karbon dalam baja adalah sebagai unsur pengeras. Unsur paduan lain yang biasa ditambahkan selain karbon adalah mangan (manganese), krom (chromium), vanadium, dan nikel. Dengan memvariasikan kandungan karbon dan unsur paduan lainnya, berbagai jenis kualitas baja bisa didapatkan. Penambahan kandungan karbon pada baja dapat meningkatkan kekerasan (hardness) dan kekuatan tariknya (tensile strength), namun di sisi lain membuatnya menjadi getas (brittle) serta menurunkan keuletannya (ductility).Perlakuan panas (Heat Treatment) merupakan suatu proses untuk mengubah struktur mikro melalui proses pemanasan dan pengendalian laju pendinginan dengan atau tanpa mengubah komposisi kimia dari logam yang bertujuan untuk menghasilkan sifat sifat logam yang diinginkan. Perubahan sifat logam akibat perlakuan panas dapat mencakup keseluruhan bagian logam atau hanya sebagian dari logam. Uji Tarik merupakan salah satu Destructive Test (DT) yang digunakan untuk menguji kekuatan (Tensile Strength) suatu material/bahan dengan cara memberikan beban (gaya statis) sejajar dengan sumbunya secara lambat atau cepat. Dari hasil pengujian ini akan didapatkan kurva tegangan-regangan yang menampilkan kekuatan luluh, tegangan tarik maksimal, keuletan, elastisitas, dan elongasi dari specimen tersebut
Karakterisasi Variasi Biokomposit [CaCO3 : Bioplastik /Corn Starch] Terhadap Sifat Mekanis dan Mikrostruktur Agris Setiawan; Margaretha Tri Budi Yuliana
Rekayasa Material, Manufaktur dan Energi Vol 5, No 2: September 2022
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v5i2.11388

Abstract

ABSTRACT The presence limestone can be used as biomaterial for bone support. CaCO3 as matrix biocomposite and bioplastic as reinforce. This work aimed to study the effect of suspension CaCO3 and corn starch as bioplastic in mechanical properties such as tensile strength, flexural strength, shrinkage and also microstructure. The ratio composition of suspension CaCO3 : Corn Starch namely is 20:80 (w/w)%, 30:70 (w/w)%, 40:60 (w/w)%, 50:50 (w/w)% . The dimensions of the tensile test specimen are in accordance with the ASTM D638 type 4 standard, and the dimensions of the flexural test specimen are in accordance with the ASTM D790 standard. Samples are given codes such as specimen A code for composition 20:80 (w/w)%, specimen B code for composition 30:70 (w/w)%, specimen C code for composition 40:60 (w/w)%, and specimen code D for composition 50:50 (w/w)%. Based on the results of the shrinkage measurement, it showed that specimen B had the highest average shrinkage value of 180.011% for the tensile test specimen, and 160.022% for the flexural test specimen. The results of the tensile test and flexural test also showed that specimen B had the highest average value, namely the ultimate tensile strength of 0.110.015 MPa and flexural strength of 0.020.012 MPa. Meanwhile, from the microstructure test, namely SEM-EDX, the results were in the form of a spheroid-shaped specimen morphology and the dominant elements contained in the specimen were C, N, O, and Ca.
Analisis Pengujian Cladding pada Aluminium Alloy 2024 Menggunakan Metode Eddy Curent di PT Garuda Maintenance Facility AeroAsia Agris Setiawan; Taufan Triandika; Dyah Probowati
Journal of Metallurgical Engineering and Processing Technology Vol 3, No 2 (February 2023)
Publisher : UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jmept.v3i2.8781

Abstract

Non-destructive testing(NDT)  adalah pengujian material untuk menentukan kualitas dan integritas material atau elemen struktur tanpa memengaruhi kemampuan untuk menjalannya fungsinya. NDT itu sendiri memiliki beberapa metode pengujian, yaitu radiograph testing, eddy current testing, thermal testing, penetrant testing, ultrasonic testing, dan visual testing. Metode eddy curent biasanya digunakan untuk melihat crack maupun mengetahui perbedaan suatu material melalui nilai konduktivitasnya. Pada penelitian ini dimaksudkan untuk menanalisis dari teori yang ada dengan yang terjadi dilapangan, dengan menambahkan variasi ketebalan pada Aluminium clad sheet 2024. Cladding test sangat umum dilakukan di industri aviasi untuk menghindari, mengetahui lebih awal dan menanggulangi kecelakaan yang diakibatkan korosi karena cladding sudah hilang.
Mechanical Properties Of Pack Carburized AISI 4340 With Variation Energizer Composition of Barium Carbonate (BaCO3) And Sodium Carbonate (Na2CO3) Agris Setiawan; Sapna Yusmania; Anton Sudiyanto
Mekanika: Majalah Ilmiah Mekanika Vol 22, No 1 (2023): MEKANIKA: Majalah Ilmiah Mekanika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mekanika.v22i1.63870

Abstract

The aim of this research was to determine the mechanical strength of AISI 4340 steel after pack carburizing with variation of barium carbonate (BaCO3) and sodium carbonate (Na2CO3) as energizer. The various ratios of energizer: 40/60, 50/50 and 60/40 w/w%. Mechanical test was conducted to determine tensile (ASTM E-8), impact charpy strength (ASTM E-23), rockwell hardness number (ASTM E-18) and microstructure characterization (ASTM E-3). Both type specimens were temperature pack carburized is 950ºC and holding time is 3 hours.  Results showed that specimen C has a lowest ultimate tensile strength mean values than the other specimens, which is 333.43±30.22 MPa. The results of the impact test showed that the lowest impact energy value is found in specimen C, which is 4.32 joules and the highest impact energy value is found in specimens without treatment, which is 15.80 joules. Based on microscope observation indicated that microstructure of specimen was martensite structure increase and the results of the hardness test was influenced by martensite phase, specimen C has the highest hardness compared to other specimens, which is 80.70 HRC while the untreated specimen is 56.90 HRC.
Mechanical Properties of Biocomposite with Various Composition of CaCO3 and Starch Agris Setiawan; Fransisca Diana Wahyuningsih; Riria Zendy Mirahati
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 7, No 1 (2023)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v7i12023001

Abstract

Calcium carbonate has the potential to be used in the development of medical materials, including biomaterials. Biocomposite is composed of CaCO3 as matrix material and bioplastic from the combination of corn starch and cassava starch as reinforcement. This study aims to determine mechanical properties such as tensile strength and bending/flexural strength with varying compositions of CaCO3 and bioplastic. Characterization of the biocomposite uses Scanning Electron Microscope to observe the microstructure and composition elements of their structure. This study used 4 variations in the ratio of CaCO3 suspension: (Corn Starch + Cassava Starch). Each sample was characterized using specimen code A for composition 30:70 (w/w) percent and specimen B for composition 40:60 (w/w) percent, specimen C for composition 50:50 (w/w) percent, and specimen D for composition 60:40 (w/w) percent. Based on the results of shrinkage measurements on flexural strength specimens, specimen B has the lowest percentage value of 15±0.01 percent. The lowest tensile strength specimen is found in specimens C and D at 12±0.01 percent. The tensile test results also showed that specimen D had a higher ultimate strength value than the other specimens, which was 0.06±0.03 MPa. Microstructure characterization was carried out using scanning electron microscopy with energy-dispersive X-ray spectroscopy, which revealed the presence of Oxygen at approximately 48.39 percent mass, Carbon at approximately 30.27 percent mass, Nitrogen at approximately 11.77 percent mass, Calcium at approximately 9.57 percent mass, with Calcium being detected in the form of Calcium Carbonate (CaCO3).
Co-Authors Anton Sudiyanto Bayu Yoga Pamungkas Dyah Probowati Fransisca Diana Wahyuningsih Margaretha Tri Budi Yuliana Riria Zendy Mirahati Sapna Yusmania Taufan Triandika