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    • 1. 发明授权
    • Diffusion coating products
    • 扩散涂料产品
    • US5843588A
    • 1998-12-01
    • US520282
    • 1995-08-28
    • Bernard R. RoseJohn K. Willis
    • Bernard R. RoseJohn K. Willis
    • C23C10/02C23C10/52B32B15/00B32B15/16
    • C23C10/52C23C10/02Y02T50/67Y10T428/1275Y10T428/12875
    • Process for producing novel nickel superalloy bodies having increased resistance of to oxidation and corrosion at high temperatures. The process comprises applying a thin layer of a platinum-group metal and heating to an elevated temperature to diffuse or integrate the platinum-group metal into the surface of the metal superalloy. Then the superalloy body is packed into a container filled with a diffusion powder composition containing sources of aluminum and chromium metals and heated in a hydrogen gas atmosphere to an elevated temperature to codeposit and diffuse aluminum and chromium into the platinum-group metal-treated surface. Finally, the superalloy body is removed from the diffusion coating container and heated to the solvus temperature to form a ductile surface having an outer zone microstructure comprising a normally brittle PtAl.sub.2 which has been ductilized by the solutioning therein of beta chromium. This ductilized PtAl.sub.2 may or may not be in a beta phase nickel aluminide matrix depending on substrate composition.
    • 用于生产在高温下具有增加的耐氧化和腐蚀性的新型镍超合金体的方法。 该方法包括施加铂族金属的薄层并加热到升高的温度以将铂族金属扩散或整合到金属超耐热合金的表面中。 然后将超合金体填充到填充有含有铝和铬金属源的扩散粉末组合物的容器中,并在氢气气氛中升高到高温,以将铝和铬分解并扩散到铂族金属处理的表面中。 最后,将超合金体从扩散涂层容器中取出并加热到固溶体温度,形成具有外部微结构的韧性表面,该外部微结构包含通过其中β溶液溶解而导致的通常脆性的PtAl2。 根据底物组成,该经管的PtAl 2可以是或不是在β相的镍铝化物基质中。
    • 2. 发明授权
    • Diffusion coating process
    • 扩散涂层工艺
    • US5482578A
    • 1996-01-09
    • US212274
    • 1994-03-14
    • Bernard R. RoseJohn K. Willis
    • Bernard R. RoseJohn K. Willis
    • C23C10/02C23C10/52C21D9/00C23C10/56
    • C23C10/52C23C10/02Y02T50/67Y10T428/1275Y10T428/12875
    • Process for producing novel nickel superalloy bodies having increased resistance of to oxidation and corrosion at high temperatures. The process comprises applying a thin layer of a platinum-group metal and heating to an elevated temperature to diffuse or integrate the platinum-group metal into the surface of the metal superalloy. Then the superalloy body is packed into a container filled with a diffusion powder composition containing sources of aluminum and chromium metals and heated in a hydrogen gas atmosphere to an elevated temperature to codeposit and diffuse aluminum and chromium into the platinum-group metal-treated surface. Finally, the superalloy body is removed from the diffusion coating container and heated to the solvus temperature to form a ductile surface having an outer zone microstructure comprising a normally brittle PtAl.sub.2 which has been ductilized by the solutioning therein of beta chromium. This ductilized PtAl.sub.2 may or may not be in a beta phase nickel aluminide matrix depending on substrate composition.
    • 用于生产在高温下具有增加的耐氧化和腐蚀性的新型镍超合金体的方法。 该方法包括施加铂族金属的薄层并加热到升高的温度以将铂族金属扩散或整合到金属超耐热合金的表面中。 然后将超合金体填充到填充有含有铝和铬金属源的扩散粉末组合物的容器中,并在氢气气氛中升高到高温,以将铝和铬分解并扩散到铂族金属处理的表面中。 最后,将超合金体从扩散涂层容器中取出并加热到固溶体温度,形成具有外部微结构的韧性表面,该外部微结构包含通过其中β溶液溶解而导致的通常脆性的PtAl2。 根据底物组成,该经管的PtAl 2可以是或不是在β相的镍铝化物基质中。
    • 3. 发明授权
    • Platinum group silicide modified aluminide coated metal superalloy body
    • 铂族硅化物改性铝化物涂层金属超合金体
    • US5688607A
    • 1997-11-18
    • US500655
    • 1995-07-12
    • Bernard R. RosePatrick R. Lavery
    • Bernard R. RosePatrick R. Lavery
    • C23C10/02C23C10/58C23C10/60B32B15/00
    • C23C10/58C23C10/02C23C10/60Y02T50/67Y10T428/1266Y10T428/12861Y10T428/12875
    • Coated nickel, cobalt or nickel-cobalt superalloy bodies having increased resistance to oxidation, corrosion and thermal fatigue at high temperature are produced by applying a thin layer of a platinum-group metal, siliciding and heating to an elevated temperature to diffuse and integrate the silicided platinum-group metal into the surface of the superalloy body. Then the superalloy body is exposed to a diffusion powder composition containing sources of aluminum or aluminum/chromium metals and heated in a hydrogen or inert gas atmosphere to an elevated temperature to codeposit and diffuse aluminum or aluminum and chromium into the silicided platinum-group metal-treated surface layer. Finally, the superalloy body is heated to its solvus temperature to form a ductile protective surface layer having an outer zone comprising a platinum-group metal aluminide, ductilized by the solutioning therein of beta chromium, and an inner stabilizing zone of silicided platinum group metal comprising from 3% to 20% by weight of silicon.
    • 在高温下具有增加的抗氧化,腐蚀和热疲劳性能的镀镍,钴或镍钴超合金体是通过将铂族金属薄层,硅化和加热施加到升高的温度来产生的,以将硅化物 铂族金属进入超合金体的表面。 然后将超合金体暴露于含有铝或铝/铬金属源的扩散粉末组合物,并在氢气或惰性气体气氛中加热至高温,以将铝或铝和铬分解成硅化物铂族金属 - 处理过的表层。 最后,将超合金体加热至其固溶温度以形成具有外部区域的韧性保护性表面层,该外部区域包含通过其中溶解β铬的管道的铂族金属铝化物,以及硅化物铂族金属的内侧稳定区域, 从3重量%至20重量%的硅。
    • 4. 发明授权
    • Platinum group silicide modified aluminide coating process and products
    • 铂族硅化物改性铝化物涂层工艺及产品
    • US5492726A
    • 1996-02-20
    • US382874
    • 1995-02-03
    • Bernard R. RosePatrick R. Lavery
    • Bernard R. RosePatrick R. Lavery
    • C23C10/02C23C10/58C23C10/60C23C16/00
    • C23C10/58C23C10/02C23C10/60Y02T50/67Y10T428/1266Y10T428/12861Y10T428/12875
    • Process for producing novel coated nickel and/or cobalt superalloy bodies having increased resistance to oxidation, corrosion and thermal fatigue at high temperatures. The process comprises applying a thin layer of a platinum-group metal, siliciding and heating to an elevated temperature to diffuse and integrate the silicided platinum-group metal into the surface of the superalloy body. Then the superalloy body is exposed to a diffusion powder composition containing sources of aluminum or aluminum/chromium metals and heated in a hydrogen or inert gas atmosphere to an elevated temperature to codeposit and diffuse aluminum or aluminum and chromium into the silicided platinum-group metal-treated surface. Finally, the superalloy body is heated to its solvus temperature to form a ductile surface having an outer zone comprising a platinum-group metal aluminide, optionally ductilized by the solutioning therein of beta chromium. An inner stabilizing zone of silicon-rich phases is formed during said diffusion processes.
    • 用于生产在高温下具有增加的耐氧化,腐蚀和热疲劳性能的新型涂覆的镍和/或钴超级合金体的方法。 该方法包括将铂族金属的薄层,硅化和加热至高温以将硅化铂族金属扩散并整合到超级合金体的表面中。 然后将超合金体暴露于含有铝或铝/铬金属源的扩散粉末组合物,并在氢气或惰性气体气氛中加热至高温,以将铝或铝和铬分解成硅化物铂族金属 - 处理过的表面。 最后,将超合金体加热至其固溶温度以形成具有包含铂族金属铝化物的外部区域的韧性表面,该外部区域可选地通过其中溶解β型铬而导电。 在所述扩散过程中形成富硅相的内部稳定区。