Patent ID: 11913118
Assignee: TECK METALS LTD.
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 7:
8. A method for producing the press hardened steel sheet article of claim 1, the method comprising the steps of:
(i) contacting a hardenable steel sheet alloy article with a coating, the coating comprising zinc, aluminum, manganese (Mn), and a remainder of zinc, so as to provide a coated hardenable steel alloy;
(ii) heating, at least a portion of the coated hardenable steel sheet alloy article, to a temperature necessary for press hardening;
(iii) press hardening the coated hardenable steel alloy article;
(iv) cooling the coated hardenable steel sheet alloy article after the step (iii), and
providing a cathodic protection amount of zinc content in an α(Fe, Zn) phase to the coated hardenable steel sheet alloy article absent a zinc-rich Γ phase, wherein the galvanized corrosion-protection layer comprises an amount of zinc in the α (Fe, Zn) phase of at least 18 weight percent zinc.