TY - JOUR
T1 - Effects of carbon nanotubes on the microstructure and mechanical properties of the wrought Mg-2.0Zn alloy
AU - Zeng, Xiao-shu
AU - Liu, Yong
AU - Huang, Qiu-yu
AU - Zeng, Gang
AU - Zhou, Guo-hua
PY - 2013/6/1
Y1 - 2013/6/1
N2 - The effects of carbon nanotubes (CNTs) on the microstructure and mechanical properties of wrought Mg alloys with of 2.0. wt% of Zn content (Mg-2.0Zn) are investigated by the optical microscope (OM), transmission electron microscope (TEM), scanning electron microscope (SEM) and uniaxial tensile test. Different contents of CNTs are added separately in the as-cast ingots and as-extruded samples. The results showed that CNTs could greatly refine the microstructure of both as-cast alloy and as-extruded alloy. The tensile strength, yield strength, elongation and elasticity modulus of the alloy with CNTs were improved to different extents. Remarkably, the increase of elongation reached approximately 80%. The fracture surface of the alloy with CNTs mainly consisted of dimples with toughness rupture modes. Therefore, it suggests that CNTs could enhance the plasticity of wrought Mg-2.0Zn alloy without the reduction of strength. © 2013 Elsevier Ltd.
AB - The effects of carbon nanotubes (CNTs) on the microstructure and mechanical properties of wrought Mg alloys with of 2.0. wt% of Zn content (Mg-2.0Zn) are investigated by the optical microscope (OM), transmission electron microscope (TEM), scanning electron microscope (SEM) and uniaxial tensile test. Different contents of CNTs are added separately in the as-cast ingots and as-extruded samples. The results showed that CNTs could greatly refine the microstructure of both as-cast alloy and as-extruded alloy. The tensile strength, yield strength, elongation and elasticity modulus of the alloy with CNTs were improved to different extents. Remarkably, the increase of elongation reached approximately 80%. The fracture surface of the alloy with CNTs mainly consisted of dimples with toughness rupture modes. Therefore, it suggests that CNTs could enhance the plasticity of wrought Mg-2.0Zn alloy without the reduction of strength. © 2013 Elsevier Ltd.
KW - Carbon nanotubes
KW - Extrusion
KW - Mechanical property
KW - Wrought Mg-Zn alloy
UR - http://www.scopus.com/inward/record.url?scp=84874644215&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84874644215&origin=recordpage
U2 - 10.1016/j.msea.2013.02.014
DO - 10.1016/j.msea.2013.02.014
M3 - RGC 21 - Publication in refereed journal
SN - 0921-5093
VL - 571
SP - 150
EP - 154
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
ER -