Just wondering how others dispose of old metallographic mounts?
Where I work, we normally just toss them in the trash, but considering the volume of work we have, it seems like an awful lot of metal to be just tossing in a landfill.
Can we toss them in with our regular metal scrap? I am somewhat...
Here is some more background...
Subject material is exhibiting shallow ductile tearing following the second step of the ASTM A1016 flattening test.
Subject material will not be flattened during fabrication but rather expanded 0.015" in diameter into tube sheet for heat exchanger application...
I am trying to calculate the amount of stress imposed at the OD surface of 0.625" dia. tube during a flattening test (ASTM A1016), and then compare it with the stress produced by expanding the tube diameter ~0.015 - 0.030".
Any assistance with either or both of these calculations is appreciated.
How much effect does carbon equivalent have on the tensile properties, ultimate tensile and Young's modulus in particular, of gray and ductile iron?
I have read in one paper that for hypoeutectic gray irons (CE of 4.30 or less) tensile strength increases approximately 18.5 MPa for every 0.1%...
I am investigating a rash of failures that involves a rotating, ductile iron shaft seizing in an aluminum housing.
The belt-driven shaft rotates on several cast aluminum journals. Seizure is occurring at the journal closest to the drive belt.
Examination shows a galling pattern ~3 or 4 mm wide...
