公开(公告)号：WO2018165369A1

公开(公告)日：2018-09-13

申请号：PCT/US2018/021461

申请日：2018-03-08

Applicant: CRS HOLDINGS, INC.

Inventor： KERNION, Samuel, J. ,  POLAR-ROSAS, Alberto

IPC: C22C30/00

Abstract: A multi-principal element, corrosion resistant alloy is disclosed. The alloy has the following composition in weight percent: Co about 13 to about 28 Ni about 13 to about 28 Fe+Mn about 13 to about 28 Cr about 13 to about 37 Mo about 8 to about 28 N about 0.10 to about 1.00. The alloy also includes the usual impurities found in corrosion resistant alloys intended for the same or similar use. In addition, one or both of W and V may be substituted for some or all of the Mo. The alloy provides a solid solution that is substantially all FCC phase, but may include minor amounts of secondary phases that do not adversely affect the corrosion resistance and mechanical properties provided by the alloy.

公开(公告)号：WO2018213556A1

公开(公告)日：2018-11-22

申请号：PCT/US2018/033155

申请日：2018-05-17

Applicant: CRS HOLDINGS, INC.

Inventor： CHINNASAMY, Chins ,  KERNION, Samuel J. ,  FITTERLING, Eric ,  POLAR-ROSAS, Alberto ,  WANG, Tao

IPC: H01F1/147 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/18 ,  H01F1/153

Abstract: A soft magnetic alloy having a good combination of formability and magnetic properties is disclosed. The alloy has the formula Fe 100-a-b-c-d-e-f Si a M b L c M' d M" e R f wherein M is Cr and/or Mo; L is Co and/or Ni; M' is one or more of Al, Mn, Cu, Ge, Ga; M" is one or more of Ti, V, Hf, Nb, W; and R is one or more of B, Zr, Mg, P, Ce. The elements Si, M, L, M', M", and R have the following ranges in weight percent: Si 4-7 M 0.1-7 L 0.1-10 M' up to 7 M" up to 7 R up to 1 The balance of the alloy is iron and usual impurities. A thin-gauge article made from the alloy and a method of making the thin-gauge article are also disclosed.

公开(公告)号：WO2019018038A3

公开(公告)日：2019-01-24

申请号：PCT/US2018/028567

申请日：2018-04-20

Applicant: CRS HOLDINGS, INC.

Inventor： FORSIK, Stephane ,  POLAR-ROSAS, Alberto ,  WANG, Tao ,  KERNION, Samuel ,  EPLER, Mario ,  ZHOU, Ning

IPC: C22C19/07 ,  C22C19/05 ,  C22C30/00

Abstract: A precipitation hardenable, cobalt-nickel base superalloy is disclosed. The is characterized by the following weight percent composition. C about 0.01 to about 0.15 Cr about 6.00 to about 15.00 Ni about 30.00 to about 45.00 W about 3.00 to about 15.00 Ti about 0.50 to about 4.00 Al about 3.00 to about 7.00 Nb up to about 2.50 Ta up to about 6.00 Hf up to about 1.50 Zr up to about 1.50 B up to about 0.20 Mo up to about 2.50 Si up to about 1.50 The balance of the alloy is cobalt and usual impurities. The alloy provides a novel combination of strength and ductility after long-term exposure to elevated operating temperatures as found in gas turbines and jet engines. A fine-grain steel article made from the alloy is also disclosed. The steel article is also characterized by a continuous surface layer of AI 2 O 3 and Cr 2 O 3 that protects the alloy from oxidation at the elevated operating temperatures.

公开(公告)号：WO2019018038A2

公开(公告)日：2019-01-24

申请号：PCT/US2018/028567

申请日：2018-04-20

Applicant: CRS HOLDINGS, INC.

Inventor： FORSIK, Stephane ,  POLAR-ROSAS, Alberto ,  WANG, Tao ,  KERNION, Samuel ,  EPLER, Mario ,  ZHOU, Ning

IPC: C22C19/05

Abstract: A precipitation hardenable, cobalt-nickel base superalloy is disclosed. The is characterized by the following weight percent composition. C about 0.01 to about 0.15 Cr about 6.00 to about 15.00 Ni about 30.00 to about 45.00 W about 3.00 to about 15.00 Ti about 0.50 to about 4.00 Al about 3.00 to about 7.00 Nb up to about 2.50 Ta up to about 6.00 Hf up to about 1.50 Zr up to about 1.50 B up to about 0.20 Mo up to about 2.50 Si up to about 1.50 The balance of the alloy is cobalt and usual impurities. The alloy provides a novel combination of strength and ductility after long-term exposure to elevated operating temperatures as found in gas turbines and jet engines. A fine-grain steel article made from the alloy is also disclosed. The steel article is also characterized by a continuous surface layer of AI 2 O 3 and Cr 2 O 3 that protects the alloy from oxidation at the elevated operating temperatures.