Method for creating a welded steel part with uniform microstructure

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United States of America Patent

PATENT NO 11154950
APP PUB NO 20200277975A1
SERIAL NO

16828672

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Abstract

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A method for creating a welded steel part includes providing a first steel plate having a first base, a first intermetallic alloy layer on the first base and a first metal alloy layer on the first intermetallic alloy layer; providing a second steel plate having a second base, a second intermetallic alloy layer on the second base and a second metal alloy layer on the second intermetallic alloy layer; butt welding the first and second steel plates at a weld so as to melt material from at least the first base, the first intermetallic alloy layer, the second base and the second intermetallic layer to form a molten weld material; austenizing the welded steel plates at a temperature between Ac1 and Ac3+100 degrees C. for a time greater than or equal to 20 seconds; and cooling the welded steel plates so as to render a uniform microstructure to the weld.

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Patent Owner(s)

Patent OwnerAddress
ARCELORMITTAL FRANCE93200 SAINT DENIS

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Canourgues, Jean-Francois Nogent sur Oise, FR 13 161
Ehling, Wolfram Ghent, BE 27 249
Pic, Aurelien Paris, FR 14 165
Thommes, Bernd Okemos, US 13 161
Verrier, Pascal Lumbres, FR 16 180
Vierstraete, Rene Maisons-Laffitte, FR 19 191

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