If the pressure hull failed as it appears, the internal air likely escaped during the implosion, any air at 6000? psi then became the reduced volume of maybe of a few? gallons, and as noted any heating was in milliseconds as it reached it's final volume if trapped, which IMO is doubtful with the water's inertia, of high-speed water movement during an implosion.
Edit "Gerhard Seiffert, a deep-water marine archaeologist who recently led an expedition to scan the wreckage of the Titanic in high resolution, told the BBC that he did not believe the currents in the area were strong enough to pose a risk to a submersible – provided it had power."
I have read nothing compelling that indicates strong currents are ever normal.
Expecting the entire CF to shatter entirely into small ill retrievable pieces simultaneously would mean that the hull had to be equally stressed over its entire surface and that the composite material be equally strong on the entire same area and not suffer from any individual point being weak or have a single imperfection, defect or "wound". That is like a balloon bursting at every spot at the same time. That is almost IMO an unbelievable real-world requirement. What could explain that with my limited knowledge would be a secondary, post initial failure, by opposite facing hull surfaces colliding during failure and contacting each other at high speed and shattering, making the pieces difficult to locate and retrieve.
The large secondary non pressure containing outer sheet thin composite coverings retrieved would have been highly susceptible I concede to any ocean currents at the time.
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Last edited by jcc; 07/01/23 03:15 PM.