TY - GEN
T1 - The influence various boron carbide reinforcement on the microstructure and mechanical properties of ADC12/B4C composite by stir casting
AU - Syahrial, Anne Zulfia
AU - Pratama, Mahendra Ammar
N1 - Funding Information:
Kindly, author would like to thank Directorate of Higher Education, Ministry of Higher Education and Research of Technology, Republic of Indonesia for financial support under Hibah PTUPT with contract number: NKB-1725/UN2.R3.1/HKP.05.00/2019.
Publisher Copyright:
© 2020 Author(s).
PY - 2020/4/21
Y1 - 2020/4/21
N2 - Aluminum matrix composite (AMC) was one of the promising materials for railway brake shoe, replacing gray cast iron since it has a low density and great combination between strength and wear resistance. The addition of boron carbide (B4C) which reinforced aluminum ADC12 as matrix showed better interfacial bonding than other ceramic reinforcement such as silicon carbide and alumina. However, B4C has some serious problem when used in a large amount which will decrease the wetting properties. In this study, the fabrication of AMC was carried out with the addition of 1 to 10 vf.% reinforcement through stir casting and 2 minutes argon degassing process. Magnesium as a wetting agent, Titanium-boron as a grain refiner, and strontium as a modifier were added to improve its mechanical properties. Microstructure and mechanical properties of AMC were investigated by performing Optical Microscope (OM), Scanning Electron Microscope (SEM), X-Ray Diffraction (XRD), and destructive test. The result showed that the addition of 7 vf.% B4C was the optimum variation which increased the tensile strength with the value of 231.117?MPa and hardness of 58.34 HRB also decreased impact resistance with value of 0.09375?J/mm2 and wear rate 0.00326 x 10-5 mm/m3.
AB - Aluminum matrix composite (AMC) was one of the promising materials for railway brake shoe, replacing gray cast iron since it has a low density and great combination between strength and wear resistance. The addition of boron carbide (B4C) which reinforced aluminum ADC12 as matrix showed better interfacial bonding than other ceramic reinforcement such as silicon carbide and alumina. However, B4C has some serious problem when used in a large amount which will decrease the wetting properties. In this study, the fabrication of AMC was carried out with the addition of 1 to 10 vf.% reinforcement through stir casting and 2 minutes argon degassing process. Magnesium as a wetting agent, Titanium-boron as a grain refiner, and strontium as a modifier were added to improve its mechanical properties. Microstructure and mechanical properties of AMC were investigated by performing Optical Microscope (OM), Scanning Electron Microscope (SEM), X-Ray Diffraction (XRD), and destructive test. The result showed that the addition of 7 vf.% B4C was the optimum variation which increased the tensile strength with the value of 231.117?MPa and hardness of 58.34 HRB also decreased impact resistance with value of 0.09375?J/mm2 and wear rate 0.00326 x 10-5 mm/m3.
UR - http://www.scopus.com/inward/record.url?scp=85113551633&partnerID=8YFLogxK
U2 - 10.1063/5.0001985
DO - 10.1063/5.0001985
M3 - Conference contribution
AN - SCOPUS:85113551633
T3 - AIP Conference Proceedings
BT - Proceedings of the 3rd International Seminar on Metallurgy and Materials, ISMM 2019
A2 - Darsono, Nono
A2 - Thaha, Yudi Nugraha
A2 - Ridhova, Aga
A2 - Rhamdani, Ahmad
A2 - Utomo, Muhammad Satrio
A2 - Ridlo, Faried Miftahur
A2 - Prasetyo, Mukhlis Agung
PB - American Institute of Physics Inc.
T2 - 3rd International Seminar on Metallurgy and Materials: Exploring New Innovation in Metallurgy and Materials, ISMM 2019
Y2 - 23 October 2019 through 24 October 2019
ER -