Volume fraction of multiple phases

[jblakes]

Afternoon all,

Hopefully somebody can help me, I'm doing my final year project and it's looking at the effect of heat treatment on in17, when I run an XRD scan I found that I all the phases sort of hid behind the matrix and so can't really make them out.

So I've been looking at using the SEM images I have and using imagen or similar to find out VF, problem is I have at least Four phases within the material. Does anybody know a program that you can work out the four phases? Most seem to only allow two as it just identifies white/grey not the different shapes of grey.

Kind regards
James

 

[chemisttree]

Are you able to produce a series of cross sections in the material? Does the surface of your sample have a different composition than the interior?

Might find something here.

 

[jblakes]

Yeah I can do, I currently have a sample that's 20x40mm.

The treatment is for homonegisation of the material so should be the same, over time I am expecting to see an increase in delta phases and gamma prime and a decrease in laves phase.

I have tried XRD but for some reason only showed the matrix peaks even though there should be 15/20% of at least two other phase. Gonna try edsd and hope that picks it up.

Anybody used imageJ? Can you find more than two phases with the colour changes?

Regards James