Determining Heat Treat Condition of 17-7 sheet
Determining Heat Treat Condition of 17-7 sheet
(OP)
Besides hardness is there a method to determine heat treat condition (in parts) besides hardness testing. From what I've read, The TH and RH grades are easy to segregate from microstructure (TH = cat's and dog's). How about between different Aging temperatures (TH 950, 1000, 1050, 1075, 1100)? What would the result of processing Condition C material to the TH1050 process (ie start with condition C instead of A)?
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RE: Determining Heat Treat Condition of 17-7 sheet
If you are sure of the materials general treatment (T, R, or C) then you should be able use tensile to estimate aging temp.
One trick is to re-age samples. If you don't change the properties then you must have used a temp below the original.
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