公开(公告)号：US20190211418A1

公开(公告)日：2019-07-11

申请号：US16326933

申请日：2017-09-06

申请人： Hitachi Metals, Ltd.

发明人： Kazuhiro YAMAMURA

IPC分类号： C21D9/18 ,  B26B9/00 ,  C22C38/02 ,  C22C38/18 ,  C21D8/02 ,  C22C38/12

CPC分类号： C21D9/18 ,  B26B9/00 ,  C21D1/18 ,  C21D8/02 ,  C21D9/46 ,  C22C38/00 ,  C22C38/02 ,  C22C38/12 ,  C22C38/18 ,  C22C38/24

摘要： Provided is a blade material having high strength. The blade material contains, in % by mass, 0.5 to 0.8% of C, 1.0% or less of Si, 1.0% or less of Mn, 11 to 15% of Cr, and 0.1 to 0.8% of V, the remainder includes Fe and inevitable impurities, and has a thickness of 0.5 mm or less, wherein the structure of the blade material as observed after polishing the surface thereof has ferrites and carbides, the carbides have an average particle diameter of 0.5 μm or less, and a proportion of carbides containing V in the carbides is 50% or less in terms of a proportion in an area of a field of view.

公开(公告)号：US20170275728A1

公开(公告)日：2017-09-28

申请号：US15512417

申请日：2015-09-30

申请人： HITACHI METALS, LTD.

发明人： Kazuhiro YAMAMURA ,  Toshihiro UEHARA ,  Shigenori TANAKA

IPC分类号： C21D9/46 ,  C21D6/00 ,  C21D1/26 ,  C22C38/44 ,  C22C38/42 ,  H01M8/021 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C38/50 ,  C21D8/02 ,  B21B3/02 ,  C22C38/06

CPC分类号： C21D9/46 ,  B21B1/22 ,  B21B3/02 ,  C21D1/26 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0236 ,  C21D2211/004 ,  C21D2211/005 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/50 ,  H01M8/021 ,  H01M2008/1293 ,  Y02P70/56

摘要： There is provided a steel for solid oxide fuel cells which contains Zr and has a composition balance which allows a thin plate to stably obtain excellent oxidation resistance. The steel for solid oxide fuel cells contains more than 0 and not more than 0.05 mass % of C, 0.05 mass % or less of N, 0.01 mass % or less of O, 0.2 mass % or less of Al, 0.15 mass % or less of Si, 0.1 to 1.0 mass % of Mn, 20.0 to 25.0 mass % of Cr, more than 0 mass % and not more than 1.0 mass % of Ni, 0.02 to 0.12 mass % of La, 0.1 to 0.5 mass % of Zr, 0.15 to 0.5 mass % of La+Zr, and Fe and impurities as a remainder. The following relational formula is satisfied, and an Fe and Zr-containing intermetallic compound viewed in a ferrite matrix is 1.1 mass % or less in terms of a visual field area ratio. 5(7C+6N)/(7−4(7C+6N))≦Zr≦41(7C+6N)/(7+66(7C+6N))