公开(公告)号：US20190194793A1

公开(公告)日：2019-06-27

申请号：US16210078

申请日：2018-12-05

Applicant: GE AVIO S.R.L.

Inventor： Lorenzo Rigo ,  Andrea Piazza ,  Diana Di Gioia

IPC: C23C8/38 ,  C23C8/02

CPC classification number: C23C8/38 ,  C21D1/06 ,  C21D9/32 ,  C22C38/44 ,  C22C38/52 ,  C23C8/02 ,  C23C8/34

Abstract: Methods for treating steel, along with the resulting treated steel, are provided. The method may comprise: nitriding a carburized Ferrium steel component such that the Ferrium steel component has a surface portion with a nitrogen content that is greater than 0% to about 5% by weight. Nitriding the Ferrium steel component may increase the surface hardness of the Ferrium steel. The surface portion may have a nitrogen content of about 0.05% to about 0.5% by weight.

公开(公告)号：US11840765B2

公开(公告)日：2023-12-12

申请号：US17509362

申请日：2021-10-25

Applicant: GE Avio S.r.l.

Inventor： Lorenzo Rigo ,  Andrea Piazza ,  Diana Di Gioia

IPC: C23C8/38 ,  C21D1/06 ,  C23C8/34 ,  C21D9/32 ,  C23C8/02 ,  C22C38/44 ,  C22C38/52

CPC classification number: C23C8/38 ,  C21D1/06 ,  C21D9/32 ,  C23C8/02 ,  C23C8/34 ,  C22C38/44 ,  C22C38/52

Abstract: Methods for treating steel, along with the resulting treated steel, are provided. The method may comprise: nitriding a carburized Ferrium steel component such that the Ferrium steel component has a surface portion with a nitrogen content that is greater than 0% to about 5% by weight. Nitriding the Ferrium steel component may increase the surface hardness of the Ferrium steel. The surface portion may have a nitrogen content of about 0.05% to about 0.5% by weight.

公开(公告)号：US11162167B2

公开(公告)日：2021-11-02

申请号：US16210078

申请日：2018-12-05

Applicant: GE AVIO S.R.L.

Inventor： Lorenzo Rigo ,  Andrea Piazza ,  Diana Di Gioia

IPC: C23C8/38 ,  C21D1/06 ,  C23C8/34 ,  C21D9/32 ,  C23C8/02 ,  C22C38/44 ,  C22C38/52

Abstract: Methods for treating steel, along with the resulting treated steel, are provided. The method may comprise: nitriding a carburized Ferrium steel component such that the Ferrium steel component has a surface portion with a nitrogen content that is greater than 0% to about 5% by weight. Nitriding the Ferrium steel component may increase the surface hardness of the Ferrium steel. The surface portion may have a nitrogen content of about 0.05% to about 0.5% by weight.