Grain size and mechanical properties of H62 brass without treatment

with pulsed magnetic field treatment

mechanical vibration treatment and compound treatment of pulsed magnetic field and mechanical vibration were investigated comparatively by using optical microscope

tensile testing machine and scanning electron microscope.In addition

influences of pulse voltage

pulse frequency and mold temperature on grain size and mechanical properties of the alloy with compound treatment were investigated.The results show that the compound treatment of pulsed magnetic field and mechanical vibration can not only refine the grains

but also improve the mechanical properties of H62 brass

which is more efficient than pulsed magnetic field treatment or mechanical vibration treatment.Tensile strength and elongation of the alloy with compound treatment are increased by up to 9.7%and 14.6%

respectively.With the increase of the pulsed voltage or pulsed frequency

grain size of the alloy is refined

and mechanical properties are improved gradually.