| The Brass alloy does not have transition temperatures as low as cryogenics treats. Cryogenics does nothing.
The liberty ships in wwII were welded and the weld to base metal did have a transition at temperatures around freezing. When the ships entered the North Atlantic the steel weld alloy transitioned which caused microcracking at the flux inclusions. After several trips across the pond some of the ships split along the hull welds. This is classic metalurgical history. You should be able to find some info on this on the www.
I asked the same question to a metalurgist at my employer. He said, "Not brass." |