Effects of Hot Rolling Deformation on Electrical Conductivity and Structure and Properties of 6063 Al Alloy Containing 0.5%B
With the help of electrical conductivity tester,electronic universal material testing machine,field emission scanning electron microscope(SEM)and metallographic microscope(OM),the effect of rolling deformation on the conductivity performance,mechanical properties and microstructure of 6063 aluminum alloy containing 0.5%B was studied.The results show that with the increase of rolling deformation,the grains become smaller and smaller.While enhancing the tensile strength and hardness of the alloy,the electrical conductivity of the alloy does not decrease.The electrical conductivity of the alloy in the rolled state is higher than that in the as-cast and homogenized alloys,among which the highest conductivity is the rolled alloy with a deformation amount of 50%,reaching 57.11%IACS.At this time,the tensile strength of the alloy reaches 128 MPa and the elongation is 15.9%.When the highest rolling deformation of the alloy is 75%,the tensile strength is 162 MPa,the elongation is 10.35%,and the electrical conductivity is 56.58%IACS.
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