Influences of electrolytic temperature

sample shape

insulation of the non-contacted zone of the sample or not on electrolytic-polishing quality of the magnesium alloy EBSD sample were analyzed.The results show that orientation indexing rate can be directly reflected by the current

and effects of the three factors on the orientation indexing rate can be attributed to effect on the current

where electrolytic temperature plays a key role in orientation indexing rate.By comparison with the quality of Kikuchi bands of a series of electrolytic-polished magnesium alloys samples

an optimal parameter combination of the voltage

electrolytic temperature

electrolysis time and the current was presented

and under the given conditions

the orientation indexing rate can be reached above 94%.In addition

after electrolyticpolishing

the block sample has a higher orientation indexing rate than sheet tension sample

and insulating treatment for the non-contacted zone of the sample can obtain the higher orientation indexing rate.The above mentioned electrolytic parameters were suitable for electrolytic-polishing other kinds of magnesium alloys.