Another valuable meeting with Adam. What follows is the non-technical non-deep thinkin' Baptist version
1. Adam confirmed the .01 carbon weight percentage.
2. The barrel did
not fail by an intrinsic defect but by a single high pressure event ie. NO LOW CYCLE FATIGUE and NO INTERLAMINAR RUST.
3. The inclusions are slag and when lined up, can be the site of micro-fractures. but did not seem to contribute to the barrel failure. The linear structures (mostly in the iron) in the image above were likely formed as part of the rolling process.
4. The barrel
does act like a monometal; although the iron bands have greater ductility than the more brittle steel bands. Composition analysis shows significant blending of the base materials.
5. The fracture lines did not, for the most part, follow weld lines.
Thanks to AmarilloMike, I've been reviewing Burrard on barrel bursts and feel confident that he would diagnose the event that destroyed THIS barrel as from an obstruction.
