Title:
METHOD FOR MANUFACTURING HIGH-STRENGTH COMPONENT HAVING EXCEPTIONAL RESISTANCE TO HYDROGEN EMBRITTLEMENT
Document Type and Number:
WIPO Patent Application WO/2024/080326
Kind Code:
A1
Abstract:
This method for manufacturing a high-strength component having exceptional resistance to hydrogen embrittlement comprises: a step for forming an additively manufactured body in which the volume density of the molded object is 99.9% or higher through a three-dimensional additive manufacturing method in which a laser or electron beam having an energy density of 60 J/mm3 or higher is used, the molded object being formed using a metal powder that contains, by weight, 0.010-0.025% of C, 0.15% or less of Si, 0.15% or less of Mn, 0.01% or less of P, 0.01% or less of S, 24-27% of Ni, 13.5-16% of Cr, 1-1.5% of Mo, 0.10-0.50% of V, 0.35% or less of Al, 1.90-2.35% of Ti, and 0.0006-0.0020% of B; and a step for performing finishing of the additively manufactured body to manufacture a high-strength component.
Inventors:
AIMONO GOSUKE (JP)
NAKAMURA MASASHI (JP)
OGAWA YUHEI (JP)
MATSUNAGA HISAO (JP)
NAKAMURA MASASHI (JP)
OGAWA YUHEI (JP)
MATSUNAGA HISAO (JP)
Application Number:
PCT/JP2023/037009
Publication Date:
April 18, 2024
Filing Date:
October 12, 2023
Export Citation:
Assignee:
MITSUCHI CORP (JP)
International Classes:
B22F1/00; B22F5/06; B22F5/10; B22F10/25; B22F10/28; B22F10/36; B22F10/38; B22F10/64; B22F10/66; B33Y10/00; B33Y40/20; B33Y70/00; B33Y80/00; C21D9/00; C22C38/00; C22C38/54
Foreign References:
| US20180015540A1 | 2018-01-18 | |||
| JP2019119913A | 2019-07-22 | |||
| JP2021181591A | 2021-11-25 |
Attorney, Agent or Firm:
KAI-U PATENT LAW FIRM (JP)
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