A method for the quantitative analysis of Al-Ti-B microstructure of master alloy was proposed

which was based on Image J’s quantitative description of the particle size

shape and uniformity of TiAl

3

phase in master alloy to realize the quantitative evaluation for structure and morphology.The morphology of the TiAl

3

phase was plotted and its particle size was obtained based on the software Image J.Through ratio of the area of the TiAl

3

phase to the area of the "envelope pattern"

shape of the TiAl

3

phase was evaluated quantitatively.At the same time

a describing method for uniformity of particles was presented

and distribution of the distance between the particle and its corresponding node was drawn based on the Matlab.Finally

based on the SPSS

the quantitative analysis of the particle size

shape and uniformity of the TiAl

3

phase obtained by the above method was carried out with thermal conductivity of the mold.