US 12,442,063 B2
Coated body
Choongnyun Paul Kim, Seoul (KR)
Assigned to ATTOMETAL TECH PTE. LTD., Singapore (SG)
Appl. No. 17/773,621
Filed by ATTOMETAL TECH PTE. LTD., Singapore (SG)
PCT Filed Sep. 16, 2020, PCT No. PCT/KR2020/012499
§ 371(c)(1), (2) Date May 2, 2022,
PCT Pub. No. WO2021/091074, PCT Pub. Date May 14, 2021.
Claims priority of application No. 10-2019-0140583 (KR), filed on Nov. 6, 2019.
Prior Publication US 2022/0389547 A1, Dec. 8, 2022
Int. Cl. C22C 45/02 (2006.01); B22F 1/00 (2022.01); B22F 1/08 (2022.01); C22C 38/22 (2006.01); C23C 4/06 (2016.01); C23C 4/10 (2016.01)
CPC C22C 45/02 (2013.01) [B22F 1/00 (2013.01); B22F 1/08 (2022.01); C22C 38/22 (2013.01); C23C 4/06 (2013.01); C23C 4/10 (2013.01); C22C 2200/02 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A coated body comprising:
a base member; and
a coating layer formed of an iron-based amorphous alloy and provided on a surface of the base member,
wherein the iron-based amorphous alloy has an amorphous structure and comprises: 25.4 to 55.3 parts by weight of chromium, 35.6 to 84.2 parts by weight of molybdenum, based on 100 parts by weight of iron; and
wherein the iron-based amorphous alloy comprises either one of carbon or boron, but not both, wherein carbon is comprised in the amount of 4 to 9.2 parts by weight and boron is comprised in the amount of 4 to 9.2 parts by weight, based on 100 parts by weight of iron,
wherein the coated body comprises either one of boride and carbide, but not both, and the total content of boride and carbide in the coated body is 3 to 8 parts by weight based on 100 parts by weight of iron.