US 12,134,816 B2
Flat steel product having an improved zinc coating
Stefan Bienholz, Bochum (DE)
Assigned to ThyssenKrupp Steel Europe AG, Duisburg (DE)
Appl. No. 18/035,378
Filed by ThyssenKrupp Steel Europe AG, Duisburg (DE)
PCT Filed Nov. 3, 2021, PCT No. PCT/EP2021/080485
§ 371(c)(1), (2) Date May 4, 2023,
PCT Pub. No. WO2022/101068, PCT Pub. Date May 19, 2022.
Claims priority of application No. 10 2020 214 293.9 (DE), filed on Nov. 13, 2020.
Prior Publication US 2023/0407455 A1, Dec. 21, 2023
Int. Cl. C23C 14/16 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/06 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01); C22C 38/54 (2006.01); C22C 38/58 (2006.01); C23C 14/02 (2006.01); C23C 14/30 (2006.01); C23C 14/32 (2006.01)
CPC C23C 14/16 (2013.01) [C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/008 (2013.01); C22C 38/02 (2013.01); C22C 38/06 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); C22C 38/54 (2013.01); C22C 38/58 (2013.01); C23C 14/021 (2013.01); C23C 14/30 (2013.01); C23C 14/325 (2013.01); Y10T 428/12757 (2015.01)] 16 Claims
OG exemplary drawing
 
1. A flat steel product comprising:
a steel substrate having, present at least on one side of the steel substrate, anticorrosion coating composed of zinc and unavoidable impurities, the anticorrosion coating applied by physical vapor deposition;
wherein the anticorrosion coating has continuous microchannels which connect the steel substrate to an ambient atmosphere, wherein the microchannels have a density which is greater than 10 mm−1, the microchannels resulting from the physical vapor deposition anticorrosion coating, wherein the microchannels have an angular distribution having a full width at half-maximum of more than 30°.