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This is an aluminum casting. Its overall hardness was
measured as Rockwell B39 (pretty soft). I made the fist two photomicrographs at 200X. |
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About now, most trained metallurgists are wishing there were
some EDX data for the compositions of the various phases ... you might
find something similar in the earlier lessons or on the Internet. Try listing all the distinguishable phases (A, B, C, etc.) along with their locations, both in the images and also in the order in which they formed during solidification. |
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The third photomicrograph is at 500X. Write out your answer; complete all or part of the set; and then apply for a Username & Password so you can activate the link at the bottom of this page. |
| Answer: Follow this link. |