US 12,031,190 B2
Method for producing nickel-based alloy product or titanium-based alloy product
Mari Yoshihara, Tokyo (JP); Takuya Murai, Tokyo (JP); Tadashi Fukuda, Tokyo (JP); and Shoichi Takahashi, Tokyo (JP)
Assigned to PROTERIAL, LTD., Tokyo (JP)
Appl. No. 17/776,150
Filed by PROTERIAL, LTD., Tokyo (JP)
PCT Filed Nov. 26, 2020, PCT No. PCT/JP2020/043991
§ 371(c)(1), (2) Date May 11, 2022,
PCT Pub. No. WO2021/106998, PCT Pub. Date Jun. 3, 2021.
Claims priority of application No. 2019-215265 (JP), filed on Nov. 28, 2019.
Prior Publication US 2022/0389535 A1, Dec. 8, 2022
Int. Cl. C21D 11/00 (2006.01); C21D 8/02 (2006.01); C22C 14/00 (2006.01); C22C 19/03 (2006.01)
CPC C21D 11/005 (2013.01) [C21D 8/0226 (2013.01); C21D 8/0263 (2013.01); C22C 14/00 (2013.01); C22C 19/03 (2013.01); C21D 2261/00 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method for producing a nickel-based alloy product or a titanium-based alloy product, comprising:
a material preparation step of preliminarily machining a hot working material of a nickel-based alloy or a titanium-based alloy after hot forging or hot ring rolling into a predetermined shape to prepare a material to be subjected to solution treatment;
a heating and holding step of heating and holding the material to be subjected to solution treatment at a solution treatment temperature to obtain a material held in a heated state; and
a cooling step of cooling the material held in a heated state to obtain a solution-treated material,
wherein the cooling step comprises placing a flow path-forming member having a space for forming a flow path for a fluid on a part to be locally cooled of a surface of the material held in a heated state so that the flow path-forming member is placed in close contact with the surface of the material held in a heated state to form a fluid flow path defined by the part of the surface of the material held in a heated state and an inner surface of the space of the flow path-forming member so that fluid leakage from the flow path is suppressed; and allowing a fluid to flow in the fluid flow path formed between the flow path-forming member and the material held in a heated state so that the fluid in the flow path locally cools the part of the surface of the material held in a heated state.