发明名称 |
GAMMA PRIME PRECIPITATION STRENGTHENED NICKEL-BASE SUPERALLOY FOR USE IN POWDER BASED ADDITIVE MANUFACTURING PROCESS |
摘要 |
The application relates to the technology of producing three-dimensional articles by means of powder-based additive manufacturing, such as selective laser melting (SLM) or electron beam melting (EBM). It refers to a Nickel-base superalloy powder, wherein the superalloy powder has a chemical composition that allows establishing a gamma-prime precipitation content of 60-70 vol.-% in the superalloy in a heat treated condition. The powder has a powder size distribution between 10 and 100 μm and a spherical morphology. The ratios of the content (in weight-%) of the alloying elements C, B, Hf, Zr, Si are the following:
C/B=10-32; C/Hf>2; C/Zr>8; C/Si>1.;A preferred embodiment includes of the following chemical composition (in weight-%): 7.7-8.3 Cr; 5.0-5.25 Co; 2.0-2.1 Mo;7.8-8.3 W; 5.8-6.1 Ta; 4.7-5.1 Al; 1.1-1.4 Ti; 0.08-0.16 C; 0.005-0.008 B; 0-0.04 Hf;0-0.01 Zr; 0-0.08 Si; the remainder being Ni and unavoidable impurities. |
申请公布号 |
US2015344994(A1) |
申请公布日期 |
2015.12.03 |
申请号 |
US201514715882 |
申请日期 |
2015.05.19 |
申请人 |
ALSTOM Technology Ltd |
发明人 |
ETTER Thomas;Meidani Hossein;Konter Maxim |
分类号 |
C22C19/05 |
主分类号 |
C22C19/05 |
代理机构 |
|
代理人 |
|
主权项 |
1. A nickel-base superalloy powder for additive manufacturing of three-dimensional articles: said nickel-base superalloy powder comprising a powder size distribution between 10 and 100 μm and a spherical morphology and that the ratios of the content (in weight-%) of the alloying elements C, B, Hf, Zr, Si are the following:
C/B=10-32; C/Hf>2; C/Zr>8; C/Si>1.wherein said superalloy powder has a chemical composition that allows establishing a gamma-prime precipitation content of 60-70 vol.-% in the superalloy in a heat treated condition |
地址 |
Baden CH |