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NITROGEN- AND CERAMIC-SURFACE-TREATED COMPONENTS FOR DOWNHOLE MOTORS AND RELATED METHODS
NITROGEN- AND CERAMIC-SURFACE-TREATED COMPONENTS FOR DOWNHOLE MOTORS AND RELATED METHODS
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机译:用于井下电动机的氮和陶瓷表面处理过的组件及相关方法
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摘要
Downhole tools for earth-boring applications may include a component of a steel material and including a bore. An inner surface defining the bore may be treated with a surface treatment. The surface treatment may include a nitrided region having nitrogen diffused into the steel material and a ceramic material adjacent to the nitrided region; the ceramic material defining the inner surface. Methods of making downhole tools for earth-boring applications may involve exposing a component of the downhole tool to an elevated temperature to heat the component in a nitrogen-rich environment. Nitrogen may be diffused into a steel material of the component and a nitrided region may be formed at one or more surfaces of the component. A ceramic material may be coated on the nitrided region of the component.
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