TY - JOUR
T1 - Microstructure Evolution and Mechanical and Corrosion Behavior of Accumulative Roll Bonded Mg-2%Zn/Al-7075 Multilayered Composite
AU - Anne, Gajanan
AU - Ramesh, M. R.
AU - Shivananda Nayaka, H.
AU - Arya, Shashi Bhushan
AU - Sahu, Sandeep
N1 - Publisher Copyright:
© 2017, ASM International.
PY - 2017/4/1
Y1 - 2017/4/1
N2 - Multilayered composite of Mg-2%Zn/Al-7075 was developed by accumulative roll bonding (ARB) of wrought Mg-2%Zn and aluminum 7075 alloy. The Mg-2%Zn/Al-7075 multilayered composite exhibited density of 2295 kg/m3 and an average grain size of 1 and 1.3 μm in Mg-2%Zn and Al-7075 layers, respectively. A thorough microstructural characterization was performed on the composites by scanning electron microscope, electron backscatter diffraction (EBSD), transmission electron microscope and phase analysis by x-ray diffraction. In addition, mechanical properties were evaluated by microhardness and tensile tests. Corrosion behavior of the multilayered composite was examined using electrochemical polarization test. EBSD analysis showed the presence of ultrafine grains with high-angle grain boundaries. The composite exhibited a significant improvement in ultimate tensile strength (~1.82 times) and elongation (~1.5 times) as compared with Mg-2%Zn alloy, after four-pass ARB process.
AB - Multilayered composite of Mg-2%Zn/Al-7075 was developed by accumulative roll bonding (ARB) of wrought Mg-2%Zn and aluminum 7075 alloy. The Mg-2%Zn/Al-7075 multilayered composite exhibited density of 2295 kg/m3 and an average grain size of 1 and 1.3 μm in Mg-2%Zn and Al-7075 layers, respectively. A thorough microstructural characterization was performed on the composites by scanning electron microscope, electron backscatter diffraction (EBSD), transmission electron microscope and phase analysis by x-ray diffraction. In addition, mechanical properties were evaluated by microhardness and tensile tests. Corrosion behavior of the multilayered composite was examined using electrochemical polarization test. EBSD analysis showed the presence of ultrafine grains with high-angle grain boundaries. The composite exhibited a significant improvement in ultimate tensile strength (~1.82 times) and elongation (~1.5 times) as compared with Mg-2%Zn alloy, after four-pass ARB process.
UR - https://www.scopus.com/pages/publications/85013838409
UR - https://www.scopus.com/inward/citedby.url?scp=85013838409&partnerID=8YFLogxK
U2 - 10.1007/s11665-017-2576-z
DO - 10.1007/s11665-017-2576-z
M3 - Article
AN - SCOPUS:85013838409
SN - 1059-9495
VL - 26
SP - 1726
EP - 1734
JO - Journal of Materials Engineering and Performance
JF - Journal of Materials Engineering and Performance
IS - 4
ER -