Semi-solid 6061 alloy slurry was prepared by manual stirring

and then the semi-solid castingforging forming of 6061 alloy was carried out by using press and cup-shaped mold to analyze effects of holding time on the segregation of 6061semi-solid casting-forging components.The results reveal that with increasing in holding time

content of Si

Cu and Mg in the upper

middle and bottom of the specimen is near to the original content.With the hold time of 0s

1sand 2s

the content of Si、Cu and Mg elements is the higher than original content in the specimen of upper and middle

which is positive segregation

however

the content of Si、Cu and Mg elements is the lower than original content in the specimen of bottom

which is negative segregation.When the holding time is 3sor more

the segregation of Si

Cu and Mg elements can be decreased greatly in the upper

middle and bottom of the specimen.