Detroit DIYer cooks up stronger, lighter steel, shames scientists

Re:Detroit DIYer cooks up stronger, lighter steel, shames sc... by intended on Sunday June 12, 2011 @04:26AM (#2646057)

Could you share more information? A description of the process perhaps? Is there any difference between what BHP was working on and his process? (I realize that you may not have information now that you aren't working there.)

There is something about the parent article that doesn't sit entirely well with me. It might just be my inner skeptic, though.

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Re:Detroit DIYer cooks up stronger, lighter steel, shames sc... by D_Alex on Sunday June 12, 2011 @11:38PM (#2648027)

The process was conceptually identical, AFAICT. Actual implementation differed insofar as coolant was sprayed onto the hot strip rather than being contained in a bath as shown in the linked graphic.

BHP's steelmaking research in the early 90's was IMO pretty leading edge - google "BHP Project M" for example. Unfortunately, the accountants decided that there was little future in steelmaking in Australia, and spun off BHP's steelmaking arm as a separate company (OneSteel) in yr 2000. The R&D focus died off around the same time.

Back to Flash Bainite - I am not totally dissing it, since some particular combination of steel composition and time-temperature path through the alloy phase diagram might produce an especially good result. What I am saying is that analogous heat treatments have been extensively studied in the past - but not implemented commercially due to problems the researchers were unable to overcome.

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