OKOKOK. I hope no pirate is reading this or my whole article might be "borrowed" frown

During the tensile testing at METL, it just so happened that a Twist barrel segment was machined right where a flaw was visible on eyeball inspection of the fracture surface. The inclusions are likely slag (silicates, phosphorus, sulfur and metal oxides) based on the appearance and Energy Dispersive X-ray Spectroscopy (EDX) spectrum. And I have a picture but ain't showin' it smile but will show this one

1895 Ithaca Crass with damascus barrels that were being cleaned up for reblueing. Initially just a small pit on the surface of the barrels, quickly grew into what you see here as polishing continued. Inside the barrels are bright and smooth, giving no indication of the large inclusion. Courtesy of Robert Rambler.


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