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US 11,753,085 B2Granted
Assembly of an aluminum component and of a press hardened steel part having an alloyed coating comprising silicon, iron, zinc and magnesium, the balance being aluminum
AssigneeArcelorMittal
InventorsTiago Machado Amorim, Stephane Morel, Laurence Dosdat, Astrid Gregoire
Life of this patent
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Abstract
An assembly of an aluminum-based part and a press hardened steel part provided with an alloyed coating including in weight percent, 0.1 to 15.0% silicon, 15.0 to 70% of iron, 0.1 to 20.0% of zinc, 0.1 to 4.0% of magnesium, the balance being aluminum, on at least one of the surfaces thereof placed so as to be in contact with the aluminum-based part.
Claims13
An assembly comprising:
- an aluminum-based element;
- and
- a press-hardened steel part having an alloyed coating provided on at least one of the surfaces of the hardened steel part, the alloyed coating comprising in weight percent, 0.1 to 15.0% silicon, 15.0 to 70% of iron, 0.1 to 20.0% of zinc, 0.1 to 4.0% of magnesium, a balance being aluminum, inevitable impurities and optionally one or more additional elements selected from the group consisting of Sb, Pb, Ti, Ca, Mn, Sn, La, Ce, Sr, Cr, Ni and Bi, the hardened steel part being joined to the aluminum-based element.
Dependencies are inferred from the claim text.