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  1. Chamblin

    Etchants for 440C Stainless

    I am looking for a etchant that will show the retained austinite in 440C stainless steel. Would anyone know a reliable one?
  2. Chamblin

    Metals strengthened by cryogenic treatment?

    Cryogenic treatment of materials is a new topic for me and I was wondering what type of metals are strengthened by cryogenic treatments and would cryogenic treatment strengthen welds made in those metals as well?

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