Assaying, Microscopy, Mineralogy & XRF/XRD

Assaying, Microscopy, Mineralogy & XRF/XRD

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XRF on metal inclusions in slag (3 replies)

C
renclod
10 months ago
renclod 10 months ago

Hello!

This is my first posting here.

Please help me understand the results of an XRF analysis done yesterday with a portable tool at the premises of a scrap metal collector. What is this specimen, what are the metal blobs made of?

 

911metallurgy.pdf
C
renclod
10 months ago
renclod 10 months ago

I have placed more visuals in this photo album:

https://photos.app.goo.gl/5xVFzqUjVDqzUxWo7

Is this a piece of slag from aluminium production?

The bulk specific gravity is 3.05.

It attracts a cheap "fridge magnet".

Are the metallic blobs made of an aluminium alloy?

The nickel test showed some positive indication. Why is there no Ni in the test report?

Thank you!

 

C
renclod
10 months ago
renclod 10 months ago

I performed grinding with a Dremel on metallic blobs and sparks are flying.

My request to experts here is to help me understand the XRF result.

1/ Are the metallic blobs made of an Al-Fe-Mn alloy?

or

2/ The XRF gun picked signals from both the metallic blobs and the matrix, which makes the analysis useless

or 

?

I added to the Google photo album linked in the first post, videos and images from grinding with sparks flying.

Is there anybody out there?!

Can I get a reply, please?

 

grinding sparks 02b
https://www.911metallurgist.com/wp-content/uploads/2023/05/grinding-sparks-02b.png
J
Jorge
10 months ago
Jorge 10 months ago

According to the results reported by the XRF Potable Tool, the slag contents a ferro aluminum manganese alloy. Some manufactures in Asia produce alloys containing more than 55% Al, more than 5% Mn and iron is the balance. 

Some deoxidizing agents are added in the foundry process and may content a variable content of Al-Mn-Fe. For that reason, the slag reported Fe, Mn and Al.

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