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Method for protecting articles from damage of high temperature and oxidation enviroment, and related compositions

An oxidative environment, high temperature technology, applied in the field of oxidative environment damage, ion deposition coating to protect products from high temperature, ion deposition method material composition, can solve the problems that limit the application of IPD

Inactive Publication Date: 2009-03-18
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the NiAl-based target material from which the deposits are generated is very fragile, limiting the application of IPDs in production environments.

Method used

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  • Method for protecting articles from damage of high temperature and oxidation enviroment, and related compositions
  • Method for protecting articles from damage of high temperature and oxidation enviroment, and related compositions

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Embodiment Construction

[0020] Plasma deposition (IPD) is a physical vapor deposition method that has been used in industrial applications such as wear-resistant coatings, decorative coatings and high-temperature resistant coatings. Referring to FIG. 1, a typical IPD coating apparatus 100 partially includes a vacuum chamber 102 on which is mounted a cathodic arc source 104 . A cathodic arc source 104 is connected to a first DC power source 106 and includes, in part, a target 108 . It is made of the material to be deposited. In the IPD method, an arc swept across the cathodic arc source 104 vaporizes material on the surface of a target 108 , and then deposits the vaporized material on a substrate 110 . In an arc discharge, the cathodic current is concentrated at the small, extremely energetic point of the cathodic arc, creating a flow of electrons in a plasma of highly ionized metal vapor. Due to the high energy of the arc method, all alloying elements of the target material are uniformly injected, ...

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Abstract

A method of protecting an article from damage in a high temperature, oxidizing environment is provided, along with an alloy composition and a plasma deposition target (108) suitable for use in the method, and an article for use in such an environment. The method includes providing a substrate (110), providing a plasma deposition target (108), and depositing a protective coating on the substrate (110) with the target (108) by plasma deposition. The target (108) includes about 2 to about 25 atomic percent chromium with the balance being aluminum.

Description

technical field [0001] This invention relates to oxidation resistant coatings. More particularly, the present invention relates to methods of protecting articles from high temperature, oxidizing environments with plasma deposited coatings. The invention also relates to material compositions suitable for use in ion deposition methods. Background technique [0002] Nickel (Ni), cobalt (Co) and iron (Fe) based alloys are commonly used to produce articles for use in high temperature, highly oxidizing environments. The articles include components used in turbine systems, such as, but not limited to, aircraft turbines, land-based turbines, and sea-based turbines, among others. To survive in such environments, articles made from such alloys typically require coatings, referred to herein as "high temperature coatings," in order to protect the underlying alloy from oxidation and thermal corrosion. In some instances, the high temperature coating may act as a bond coat in order to m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/34C23C14/32C23C14/14F01D5/28C23C14/16C23C14/58C23C28/00
CPCC23C14/5806C23C14/165C23C14/325Y02T50/67C23C14/3414Y02T50/60
Inventor D·M·利普金J·-C·赵
Owner GENERAL ELECTRIC CO