Article Per Year (5 Year)
p-Index From 2021 - 2026
0
P-Index
This Author published in this journals
All Journal Jurnal Metalurgi dan Material Indonesia
Kusharjanto Suhirman
Jurusan Teknik Metalurgi, Universitas Jenderal Achmad Yani, Bandung, Indonesia
Automotive Engineering Chemistry Engineering Industrial & Manufacturing Engineering

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Pengaruh Penambahan Aluminium Oksida Terhadap Kekerasan dan Struktur Mikro Paduan Mg-Sn Ayuda Darmawan Yulianto; Muhammad Reza Parega; Kusharjanto Suhirman; Supono Adi Dwiwanto
Jurnal Metalurgi dan Material Indonesia Vol. 1 No. 2 (2018): Desember
Publisher : Badan Kerja Sama Pendidikan Metalurgi dan Material (BKPMM)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This paper focused on hardness and microstructure of Mg-Sn alloy by Aluminium Oxide addition. Mg-Sn alloys were prepared by casting with the addition of Aluminium Oxide from 1% to 5%wt, then quenching to the water. The microstructure evolution and hardness were investigated. Based on hardness test result the hardness was increased. With 1% to 5% Aluminium Oxide addition, hardness increased from 22.9 BHN to 30.8 BHN. The highest hardness was in the addition of 5% Aluminium Oxide with 30.8 BHN. The result showed that increasing of Aluminium Oxide content resulted the globular and smaller grains.
Inspeksi Korosi Sambungan Las FGHAZ-CGHAZ Menggunakan Metode Magnetic Flux Leakage pada Pipa Penyalur Gas Ekha Panji Syuryana; Kusharjanto Suhirman
Jurnal Metalurgi dan Material Indonesia Vol. 1 No. 2 (2018): Desember
Publisher : Badan Kerja Sama Pendidikan Metalurgi dan Material (BKPMM)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The welded joints are important factors that have an influence on the integrity of the pipeline. The microstructure differences in FGHAZ (fine grain heat affected zone) and CGHAZ (coarse grain heat affected zone) may potentially lead to micro galvanic corrosion reactions. Corrosion resistance to the weld section needs to be analyzed by ICDA (internal corrosion direct assessment), ECDA (external corrosion direct assessment) and In-line Inspection (ILI) type MFL (magnetic flux leakage) to mapping the condition of corrosion damage to pipelines on external and internal surfaces. Based on MFL inspection result in gas pipe case study with 28 in x 55 km, 0.500 in wall thickness, API 5L X65 indication of damage to weld joints at kilometer point 13 + 2216, defect orientation at 7:43 h, with 25% depth, axial length 116 mm, 67mm circular width and point kilometer 13 + 2219 defect orientation at 8:22, with a depth of 30%, axial length of 77 mm, 40 mm circular width. This pipeline supplies gas with 98.837% methane and 0.107% CO2 impurities
Effect of Hydroxyapatite on Microstructure and Hardness of Mg-Al-Zn Alloy Andy Saputro; Intan Khoerunisa; Kusharjanto Suhirman; Supono Adi Dwiwanto
Jurnal Metalurgi dan Material Indonesia Vol. 1 No. 2 (2018): Desember
Publisher : Badan Kerja Sama Pendidikan Metalurgi dan Material (BKPMM)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This paper focused on microstructure and hardness of Mg-Al-Zn alloy by Hydroxyapatite addition. Mg-Al-Zn alloys were prepared by casting with the addition of Hydroxyapatite from 1,5% to 2,5%wt, then water quenched. The microstructure evolution and hardness were investigated. The result showed that increasing of Hydroxyapatite content made the globular and smaller grains. Based on hardness test result the hardness was increased. With 1,5% to 2,5% Hydroxyapatite addition, hardness increased from 75.52 HV to 82.82 HV. The highest hardness was in the addition of 2.5% Hydroxyapatite with 82.82 HV.
Co-Authors Andy Saputro Ayuda Darmawan Yulianto Ekha Panji Syuryana Intan Khoerunisa Muhammad Reza Parega Supono Adi Dwiwanto