TY - GEN
T1 - Effect of Sr addition on the microstructure and mechanical properties of ADC12/nano Al2O3 composites produced by stir casting method
AU - Syahrial, Anne Zulfia
AU - Puspita, Lalita Padma
AU - Dhaneswara, Donantac
AU - Utomo, Budi Wahyu
N1 - Publisher Copyright:
© 2018 Author(s).
PY - 2018/5/15
Y1 - 2018/5/15
N2 - The effects of Sr addition on microstructure and mechanical properties of ADC12/nano Al2O3 composite has been studied. In this research ADC12 as a matrix was added by 0.3 vf% nano Al2O3 as a reinforcement and Al-5Sr varied from 0.00 wt% to 0.05 wt% to modify the eutectic structure of the matrix. The composites were further characterized both microstructural analysis and mechanical properties. The results showed that the intermetallic phases including β-Al5FeSi and Al2Cu were detected using scanning electron microscope and α-Al(Mn,Fe)Si or α-cubic phases was possible to form due to high content of Mn in the composites. The Mg2Si primary, binary, and ternary phases were detected in this composites by metallographic examination. Then, MgAl2O4 (spinnel) were found by XRD analysis. The higher of Sr content from 0,00 to 0.02 the lower SDAS formation from 15 μm to 14 μm as well as porosity content reduced from 4% to 3%. The ultimate tensile strength increased from 115 MPa to 137 MPa as well as in impact toughness from 0.016 J/mm2 to 0.025 J/mm2. The highest hardness and the lowest wear rate were obtained with the addition of 0.05 wt% Sr with 46 HRB and 1.04 10-5 mm3/m respectively due to the changed of chinese script became refined fibrous type.
AB - The effects of Sr addition on microstructure and mechanical properties of ADC12/nano Al2O3 composite has been studied. In this research ADC12 as a matrix was added by 0.3 vf% nano Al2O3 as a reinforcement and Al-5Sr varied from 0.00 wt% to 0.05 wt% to modify the eutectic structure of the matrix. The composites were further characterized both microstructural analysis and mechanical properties. The results showed that the intermetallic phases including β-Al5FeSi and Al2Cu were detected using scanning electron microscope and α-Al(Mn,Fe)Si or α-cubic phases was possible to form due to high content of Mn in the composites. The Mg2Si primary, binary, and ternary phases were detected in this composites by metallographic examination. Then, MgAl2O4 (spinnel) were found by XRD analysis. The higher of Sr content from 0,00 to 0.02 the lower SDAS formation from 15 μm to 14 μm as well as porosity content reduced from 4% to 3%. The ultimate tensile strength increased from 115 MPa to 137 MPa as well as in impact toughness from 0.016 J/mm2 to 0.025 J/mm2. The highest hardness and the lowest wear rate were obtained with the addition of 0.05 wt% Sr with 46 HRB and 1.04 10-5 mm3/m respectively due to the changed of chinese script became refined fibrous type.
UR - http://www.scopus.com/inward/record.url?scp=85047810818&partnerID=8YFLogxK
U2 - 10.1063/1.5038297
DO - 10.1063/1.5038297
M3 - Conference contribution
AN - SCOPUS:85047810818
T3 - AIP Conference Proceedings
BT - Proceedings of the International Seminar on Metallurgy and Materials, ISMM 2017
A2 - Hasbi, M. Yunan
A2 - Malau, Daniel Panghihutan
A2 - Annur, Dhyah
A2 - Amal, M. Ikhlasul
A2 - Herbirowo, Satrio
A2 - Lestari, Yulinda
PB - American Institute of Physics Inc.
T2 - 1st International Seminar on Metallurgy and Materials: Metallurgy and Advanced Material Technology for Sustainable Development, ISMM 2017
Y2 - 24 October 2017 through 25 October 2017
ER -