TY - JOUR
T1 - Effect of samarium on microstructure and intermetallic formation in Al-5Zn-0.5Si alloy
AU - Ferdian, D.
AU - Pratama, J. R.
AU - Pratesa, Y.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2019/7/3
Y1 - 2019/7/3
N2 - Aluminium-Zinc-Silicon alloy is a material candidate for low voltage sacrificial anode. Nevertheless, iron-rich intermetallic phase that formed in the interdendritic region can reduce its efficiency due to the self-corrosion phenomenon. Samarium addition is expected to modify the formation of iron-rich intermetallic phase. The alloying process was conducted with melting of aluminium and other additional element in mini electric resistance furnace. Furthermore, characterization of the alloys was performed using optical emission spectrometer, differential scanning calorimetry, optical metallography and scanning electron microscopy equipped with energy dispersive spectrometer. The result showed that samarium can refined the secondary dendrite arm spacing (SDAS) from 89.6 μm to 61.4 μm. Samarium also shifted the solidification temperature of the alloy which affected the size of SDAS and formation of Al2Si2Sm intermetallic phase.
AB - Aluminium-Zinc-Silicon alloy is a material candidate for low voltage sacrificial anode. Nevertheless, iron-rich intermetallic phase that formed in the interdendritic region can reduce its efficiency due to the self-corrosion phenomenon. Samarium addition is expected to modify the formation of iron-rich intermetallic phase. The alloying process was conducted with melting of aluminium and other additional element in mini electric resistance furnace. Furthermore, characterization of the alloys was performed using optical emission spectrometer, differential scanning calorimetry, optical metallography and scanning electron microscopy equipped with energy dispersive spectrometer. The result showed that samarium can refined the secondary dendrite arm spacing (SDAS) from 89.6 μm to 61.4 μm. Samarium also shifted the solidification temperature of the alloy which affected the size of SDAS and formation of Al2Si2Sm intermetallic phase.
UR - http://www.scopus.com/inward/record.url?scp=85068978814&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/541/1/012024
DO - 10.1088/1757-899X/541/1/012024
M3 - Conference article
AN - SCOPUS:85068978814
SN - 1757-8981
VL - 541
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012024
T2 - 2nd International Seminar on Metallurgy and Materials, ISMM 2018
Y2 - 25 September 2018 through 26 September 2018
ER -