公开(公告)号：US20190382898A1

公开(公告)日：2019-12-19

申请号：US16465066

申请日：2016-11-30

Applicant: Lawrence Bernard KOOL ,  Xubin GAO ,  Hui ZHU ,  Limin WANG ,  Hai CHANG ,  Dalong ZHONG ,  Aramco Services Company ,  General Electric Company

Inventor： Lawrence Bernard Kool ,  Xubin Gao ,  Hui Zhu ,  Limin Wang ,  Hai Chang ,  Dalong Zhong

IPC: C23C18/36 ,  C23C18/16 ,  C23C28/00

Abstract: A fluid conduit (10) is provided having (a) a fluid conduit exterior surface (14); (b) a fluid conduit interior surface (16); (c) an electroless nickel protective coating (18) disposed upon one or both of the fluid conduit interior surface and the fluid conduit exterior surface; and (d) a layer (20) of Ni3S2 disposed upon and substantially covering the electroless nickel protective coating. The fluid conduit can be any fluid conduit through which a fluid may be caused to pass, such as a downhole tubular used in oil and gas production, or a gas liquid cyclonic separator. And a hydrocarbon production tube, a method of producing a fluid conduit comprising a nickel sulfide protective layer, a machine component comprising at least one surface having a protective outer layer are provided. The combination of the electroless nickel inner protective coating with an outer layer of Ni3S2 affords articles such as fluid conduits and machine components with exceptional scale and corrosion resistance.

公开(公告)号：US09909019B2

公开(公告)日：2018-03-06

申请号：US14749096

申请日：2015-06-24

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Limin Wang ,  Lawrence Bernard Kool

IPC: C23C10/32 ,  C09D7/12 ,  C23C10/02 ,  C23C10/58

CPC classification number: C09D7/61 ,  B32B15/00 ,  C08K3/08 ,  C08K3/16 ,  C08K3/28 ,  C08K3/34 ,  C08K2003/0812 ,  C08K2003/0843 ,  C08K2003/0862 ,  C08K2003/162 ,  C08K2003/164 ,  C08K2003/166 ,  C08L33/00 ,  C23C10/02 ,  C23C10/32 ,  C23C10/58 ,  C08L101/00

Abstract: The present invention is directed to coating compositions for forming diffusion coatings on metal-based substrates. The coating compositions may include a metal powder, an inorganic salt, an activator, and a binder. The present invention is also directed to processes for forming diffusion coatings on metal-based substrates using the disclosed coating compositions.

公开(公告)号：US10053779B2

公开(公告)日：2018-08-21

申请号：US15189854

申请日：2016-06-22

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Liming Zhang ,  Christopher Edward Thompson ,  Limin Wang

IPC: B05D3/02 ,  C23C16/56 ,  C23C10/02 ,  C23C10/04 ,  C23C10/30 ,  C23C10/32 ,  C23C10/48 ,  C23C10/60 ,  F01D5/28

CPC classification number: C23C16/56 ,  C23C10/02 ,  C23C10/04 ,  C23C10/30 ,  C23C10/32 ,  C23C10/48 ,  C23C10/60 ,  F01D5/288 ,  F01D5/3092 ,  F05D2300/121 ,  F05D2300/132 ,  F05D2300/2112

Abstract: A coating process for applying a bifurcated coating to an article is disclosed including applying an aluminizing slurry to a first portion of the article, applying a chromizing slurry to a second portion of the article, and simultaneously heat treating the article, the aluminizing slurry, and the chromizing slurry. Heat treating the aluminizing slurry forms an aluminide coating on the first portion of the article and an aluminide diffusion zone between the article and the aluminide coating. Heat treating the chromizing slurry forms a chromide coating on the second portion of the article and a chromide diffusion zone between the article and the chromide coating. The first portion and the second portion are both maintained in an unmasked state while applying the aluminizing slurry and the chromizing slurry and during the heat treating.