发明授权
- 专利标题： Processable high thermal neutron absorbing Fe-base alloy powder
- 专利标题（中）： 可加工的高热中子吸收Fe基合金粉末
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申请号： US13217784申请日： 2011-08-25
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公开(公告)号： US09267192B2公开(公告)日： 2016-02-23
- 发明人: Michael L. Schmidt , Gregory J. Del Corso , Patrick C. Ray , Ning Ma
- 申请人： Michael L. Schmidt , Gregory J. Del Corso , Patrick C. Ray , Ning Ma
- 申请人地址： US DE Wilmington
- 专利权人： CRS HOLDINGS, INC.
- 当前专利权人： CRS HOLDINGS, INC.
- 当前专利权人地址： US DE Wilmington
- 代理机构： Dann, Dorfman, Herrell and Skillman, P.C.
- 主分类号： C22C38/40
- IPC分类号： C22C38/40 ; C22C38/44 ; C22C38/58 ; C22C38/54 ; C22C33/02 ; C22C38/00 ; C22C38/02 ; G21F1/08
摘要：
A corrosion resistant, neutron absorbing, austenitic alloy powder is disclosed having the following composition in weight percent. C0.08 max. Mnup to 3 Siup to 2 P0.05 max. S0.03 max. Cr17-27 Ni11-20 Mo + (W/1.92) up to 5.2 BEq0.78-13.0 O 0.1 max. N up to 0.2 Yless than 0.005 The alloy contains at least about 0.25% B, at least about 0.05% Gd, and the balance of the alloy composition is iron and usual impurities. BEq is defined as % B+4.35×(% Gd). An article of manufacture made from consolidated alloy powder is also disclosed which is characterized by a plurality of boride and gadolinide particles dispersed within a matrix. The boride and gadolinide particles are predominantly M2B, M3B2, M3X, and M5X in form, where X is gadolinium or a combination of gadolinium and boron and M is one or more of the elements silicon, chromium, nickel, molybdenum, iron.
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