- 专利标题： Low-cost Fe—Ni—Cr alloys for high temperature valve applications
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申请号： US14307733申请日： 2014-06-18
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公开(公告)号： US09605565B2公开(公告)日： 2017-03-28
- 发明人: Govindarajan Muralidharan
- 申请人： UT-Battelle, LLC
- 申请人地址： US TN Oak Ridge
- 专利权人： UT-BATTELLE, LLC
- 当前专利权人： UT-BATTELLE, LLC
- 当前专利权人地址： US TN Oak Ridge
- 代理机构： Fox Rothschild LLP
- 主分类号： F01L3/02
- IPC分类号： F01L3/02 ; C22C19/05 ; C22C30/02 ; C22C30/00
摘要：
An Fe—Ni—Cr alloy is composed essentially of, in terms of weight percent: 1 to 3.5 Al, up to 2 Co, 15 to 19.5 Cr, up to 2 Cu, 23 to 40 Fe, up to 0.3 Hf, up to 4 Mn, 0.15 to 2 Mo, up to 0.15 Si, up to 1.05 Ta, 2.8 to 4.3 Ti, up to 0.5 W, up to 0.06 Zr, 0.02 to 0.15 C, 0.0001 to 0.007 N, balance Ni, wherein, in terms of atomic percent: 6.5≦Al+Ti+Zr+Hf+Ta≦10, 0.33≦Al÷(Al+Ti+Zr+Hf+Ta)≦0.065, 4≦(Fe+Cr)÷(Al+Ti+Zr+Hf+Ta)≦10, the alloy being essentially free of Nb and V.
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