-
1.发明公开MAGNESIUM ALLOYS AND PROCESS FOR PRODUCING THE SAME 有权MAGNESIUMLEGIERUNGEN UND HERSTELLUNGSVERFAHRENDAFÜR
公开(公告)号：EP2143811A1
公开(公告)日：2010-01-13
申请号：EP08739647.9
申请日：2008-03-26
摘要： An Mg alloy provided with high strength and high ductility by matching the strength and ductility in tensile deformation and compressive deformation at the same levels is provided. The Mg alloy of the present invention is characterized by having a chemical composition consisting of Y: 0.1 to 1.5 at% and a balance of Mg and unavoidable impurities and having a microstructure with high Y regions with Y concentrations higher than an average Y concentration distributed at nanometer order sizes and intervals. The present invention further provides an Mg alloy characterized by having a chemical composition consisting of Y: more than 0.1 at% and a valance of Mg and unavoidable impurities, having a microstructure with high Y regions with Y concentrations higher than an average Y concentration distributed at nanometer order sizes and intervals and having an average recrystallized grain size within the range satisfying the following formula 1: - 0.87 c + 1.10 log d 1.14 c + 1.48 ,
where
c: Y content (at%) and
d: average recrystallized grain size (µm).摘要翻译： 提供了通过将拉伸变形和压缩变形的强度和延展性在相同水平上匹配而具有高强度和高延展性的Mg合金。 本发明的Mg合金的特征在于具有以下组成的化学组成：Y：0.1〜1.5原子％，余量为Mg和不可避免的杂质，具有Y浓度高于分布在 纳米尺寸和间隔。 本发明还提供一种Mg合金，其特征在于具有以下组成的化学组成：Y：大于0.1原子％，Mg和不可避免的杂质，具有Y浓度高于分布在 纳米级尺寸和间隔，其平均再结晶晶粒尺寸在满足下列公式1的范围内： - 0.87 ¢c + 1.10
-
公开(公告)号：EP2143811B9
公开(公告)日：2017-02-22
申请号：EP08739647.9
申请日：2008-03-26
-
公开(公告)号：EP2319949B1
公开(公告)日：2015-02-18
申请号：EP09800476.5
申请日：2009-07-22
-
公开(公告)号：EP2319949A1
公开(公告)日：2011-05-11
申请号：EP09800476.5
申请日：2009-07-22
摘要： The present invention has as its object to provide an Mg-based alloy cold worked member which can remarkably lower the load weight required for cold plastic working and enables practical usage of the same. The present invention is an Mg-based alloy cold worked member obtained by cold working an Mg-based alloy to form it into a predetermined shape, characterized by having a microstructure which includes crystal grains divided and made finer by cold working.
摘要翻译： 本发明的目的是提供一种能够显着降低冷塑性加工所需的负荷重量的Mg系合金冷加工部件，能够实际应用。 本发明是一种通过将Mg基合金冷加工成为预定形状而获得的Mg基合金冷加工构件，其特征在于，具有通过冷加工分割成微细结晶的微结构。
-
公开(公告)号：EP2143811B1
公开(公告)日：2016-12-21
申请号：EP08739647.9
申请日：2008-03-26
-
公开(公告)号：EP3989244A1
公开(公告)日：2022-04-27
申请号：EP21194761.9
申请日：2021-09-03
摘要： To provide an R-Fe-B-based rare earth magnet excellent in the squareness and magnetic properties at high temperatures, particularly, the residual magnetization at high temperatures, and method for producing thereof.
The present disclosure relates to a rare earth magnet including a main phase 10 and a grain boundary phase 20 present around the main phase 10, and a method for producing thereof. In the rare earth magnet of the present disclosure, the overall composition is represented, in terms of molar ratio, by the formula: (R 1 (1-x) La x ) y (Fe (1-z) Co z ) (100-y-w-v) B w M 1 v or (R 1 (1-x) La x ) y (Fe (1-z) Co z ) (100-y-w-v) B w M 1 v ·(R 2 (1-s) M 2 s ) t , wherein R 1 is a predetermined rare earth element, M 1 is a predetermined element, 0≤x≤0.1, 12.0≤y≤20.0, 0.1≤z≤0.3, 5.0≤w≤20.0, 0≤v≤2.0, 0.05≤s≤0.40, and0.1≤t≤10.0,
The main phase 10 has an R 2 Fe 14 B-type crystal structure, the average particle diameter of the main phase 10 is less than 1 µm, and the volume ratio of a phase having an RFe 2 -type crystal structure in the grain boundary phase 20 is 0.40 or less relative to the grain boundary phase 20.-
公开(公告)号：EP3919644A1
公开(公告)日：2021-12-08
申请号：EP21167571.5
申请日：2021-04-09
发明人： SAKUMA, Noritsugu , SHOJI, Tetsuya , TAKADA, Yukio
摘要： To provide an R-Fe-B-based rare earth magnet excellent in the squareness and magnetic properties at high temperatures, particularly, the residual magnetization at high temperatures, and a production method thereof.
The present disclosure provides a rare earth magnet including a main phase 10 and a grain boundary phase 20 present around the main phase 10. The overall composition of the rare earth magnet of the present disclosure is represented, in terms of molar ratio, by the formula: (R 1 (1-x) La x ) y (Fe (1-z) Co z ) (100-y-w-v) B w M 1 v , wherein R 1 is one or more predetermined rare earth elements, and M 1 is one or more predetermined elements, and wherein 0.02≤x≤0.1, 12.0≤y≤20.0, 0.1≤z≤0.3, 5.0≤w≤20.0, and 0≤v≤2.0. The main phase 10 has an R 2 Fe 14 B-type crystal structure, the average particle diameter of the main phase 10 is from 1 to 10 µm, and the volume ratio of a phase having an RFe 2 -type crystal structure in the grain boundary phase 20 is 0.60 or less relative to the grain boundary phase 20.-
8.发明授权FUEL CELL ELECTRODE CATALYST, METHOD FOR MANUFACTURING THE SAME, AND SOLID POLYMER TYPE FUEL CELL USING THE SAME 有权燃料电池电极催化剂，方法ITS和固体高分子燃料电池SO
公开(公告)号：EP2246924B1
公开(公告)日：2015-10-21
申请号：EP09705680.8
申请日：2009-01-26
发明人： UENO, Yukiyoshi , NAGAMI, Tetsuo , SHOJI, Tetsuya
CPC分类号： H01M4/921 , H01M4/926 , H01M2008/1095
-
公开(公告)号：EP2913831A1
公开(公告)日：2015-09-02
申请号：EP13848858.0
申请日：2013-10-17
CPC分类号： H01F41/0266 , B22F3/14 , B22F3/17 , B22F3/20 , B22F2003/208 , B22F2998/10 , B22F2999/00 , C22C28/00 , H01F1/0576 , H01F41/0273 , B22F2202/05 , B22F2009/048
摘要： Provided is a method for manufacturing a rare-earth magnet through hot deformation processing, capable of manufacturing a rare-earth magnet having high degree of orientation at the entire area of the rare-earth magnet manufactured and high remanence, without increasing processing cost therefor. A method includes: a step of press-forming powder as a rare-earth magnetic material to form a compact S; and a step of performing hot deformation processing to the compact S, thus manufacturing the rare-earth magnet C. The hot deformation processing includes two steps of extruding and upsetting. The extruding is to place a compact S in a die Da, and apply pressure to the compact S' in a heated state with an extrusion punch PD so as to reduce the thickness for extrusion to prepare the rare-earth magnet intermediary body S" having a sheet form, and the upsetting is to apply pressure to the rare-earth magnet intermediary body S" in the thickness direction to reduce the thickness, thus manufacturing the rare-earth magnet C.
-
公开(公告)号：EP3792939A1
公开(公告)日：2021-03-17
申请号：EP20192592.2
申请日：2020-08-25
发明人： SAKUMA, Noritsugu , SHOJI, Tetsuya , TAKADA, Yukio
摘要： To provide a rare earth magnet excellent in both the coercive force and the residual magnetization, and a production method thereof.
A rare earth magnet 100 including a main phase 10 and a grain boundary phase 20, wherein the overall composition is represented by the formula: (R 2 (1-x) R 1 x ) y Fe (100-y-w-z-v) Co w B z M 1 v ·(R 3 (1-p) M 2 p ) q (wherein R 1 is an element selected from Ce, La, Y, and Sc, each of R 2 and R 3 is an element selected from Nd, Pr, Gd, Tb, Dy, and Ho, M 1 is a predetermined element, etc., and M 2 is a transition metal element, etc. alloyed with R3), the main phase 10 has an R 2 Fe 14 B-type crystal structure, the average particle dimeter of the main phase 10 is from 1 to 20 µm, the main phase 10 has a core portion 12 and a shell portion 14, the thickness of the shell portion 14 is from 25 to 150 nm, and denoting a as the ratio of the light rare earth element of the core portion 12 and b as the ratio of the light rare earth element of the core portion 12, these satisfy 0≤b≤0.30 and 0≤b/a≤0.50.
-
-
-
-
-
-
-
-
-
搜索结果
35 条记录 (耗时 0.031 秒)
