US 11,913,097 B2
Fe—Al-based alloy vibration-damping component and method for manufacturing same
Junichi Nishida, Tokyo (JP); and Kousuke Kuwabara, Tokyo (JP)
Assigned to Proterial, Ltd., Tokyo (JP)
Appl. No. 17/613,474
Filed by Proterial, Ltd., Tokyo (JP)
PCT Filed May 22, 2020, PCT No. PCT/JP2020/020422
§ 371(c)(1), (2) Date Nov. 22, 2021,
PCT Pub. No. WO2020/241530, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 2019-102725 (JP), filed on May 31, 2019.
Prior Publication US 2022/0220594 A1, Jul. 14, 2022
Int. Cl. C22C 38/06 (2006.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B22F 10/64 (2021.01); B33Y 80/00 (2015.01); B33Y 40/20 (2020.01); B22F 10/25 (2021.01)
CPC C22C 38/06 (2013.01) [B22F 10/25 (2021.01); B22F 10/64 (2021.01); B33Y 10/00 (2014.12); B33Y 40/20 (2020.01); B33Y 70/00 (2014.12); B22F 2301/35 (2013.01); B33Y 80/00 (2014.12)] 2 Claims
OG exemplary drawing
 
1. A Fe—Al-based alloy vibration-damping component comprising:
4.0 to 12.0% by mass of Al, with the balance being Fe and inevitable impurities, and
having an average crystal grain size in a range of over 740 μm to 2000 μm and a sectional defect rate of lower than 0.1%, and having an irregular sectional shape.