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Hi, I'm working on an atlas of microstructures for T22... I know pretty basic stuff, but I'm having an issue mimicking an industrial heat treatment in our little box furnace here at the lab. Ultimately, I'm performing an isothermal anneal and a normalize/temper heat treatment. The goal is to...

one more!http://files.engineering.com/getfile.aspx?folder=c80f9293-db74-4e46-85b9-8a82c02bbf70&file=Crack_at_Wall_Mid_etched_50x-2.jpg

additional micrograph...http://files.engineering.com/getfile.aspx?folder=4c2d9e14-06a3-4d90-b6ba-cd8bd965e98c&file=Crack_at_Wall_OD_etched_50x.jpg

I'm new to this site, so hopefully I'm posting in the correct area. I have an issue with a failed tube that we received in our lab. It is a T23 to T11 DMW with an 80S-B2 filler metal. At the moment I can say that, in the two sections we’ve examined, that the crack is filled with oxide and...