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公开(公告)号:US06521293B1
公开(公告)日:2003-02-18
申请号:US09511187
申请日:2000-02-23
申请人: Yoshitaka Kojima , Hideyuki Arikawa , Mitsuo Haginoya , Katsuo Wada , Ryuta Watanabe , Yoshiaki Matsushita , Shin Yoshino
发明人: Yoshitaka Kojima , Hideyuki Arikawa , Mitsuo Haginoya , Katsuo Wada , Ryuta Watanabe , Yoshiaki Matsushita , Shin Yoshino
IPC分类号: C23C1630
CPC分类号: C23C28/3215 , C23C4/02 , C23C28/345 , C23C28/3455 , Y02T50/67 , Y10T428/12535 , Y10T428/12611 , Y10T428/12618
摘要: A ceramic-coated blade of a gas turbine and a method of producing the same, in which the thickening of an Al2O3 layer at the interface between a ceramic layer and a primary layer is sufficiently prevented for a long period of time, thereby positively suppressing the separation of the ceramic layer. Using powder of MCrAlY alloy (Co—32%Ni—21%Cr—8%Al—0.5%Y), a primary layer (alloy coating layer) is formed on a surface of a substrate made of a heat-resistant Ni base alloy (Rene'-80). Further, a heat-resistant ceramic layer, comprising a mixture of ion-conductive ZrO2—8wt. %Y2O3 ceramic and insulative ceramic (e.g. Al2O3), is formed on the alloy coating layer. This mixture has a columnar structure in which columnar crystals are grown by a gas phase in a direction of a thickness of the coating, or a porous structure in which flattened particles brought about from molten particles caused to fly at high velocity are laminated.
摘要翻译: 燃气轮机的陶瓷涂覆刀片及其制造方法,其中在陶瓷层和主层之间的界面处的Al 2 O 3层的增厚被充分地长时间地防止,从而积极地抑制 分离陶瓷层。 使用MCrAlY合金(Co-32%Ni-21%Cr-8%Al-0.5%Y)的粉末,在由耐热Ni基合金制成的基板的表面上形成一层(合金涂层) (Rene'-80)。 此外,还包括耐热陶瓷层,其包含离子传导性ZrO 2 -8wt。 %Y 2 O 3陶瓷和绝缘陶瓷(例如Al 2 O 3)形成在合金涂层上。 该混合物具有柱状结构,其中柱状结晶通过气相在涂层的厚度方向上生长,或多层结构,其中由熔融颗粒引起的高速飞行的扁平颗粒被层压。
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公开(公告)号:US6042951A
公开(公告)日:2000-03-28
申请号:US17320
申请日:1998-02-02
申请人: Yoshitaka Kojima , Hideyuki Arikawa , Mitsuo Haginoya , Katsuo Wada , Ryuta Watanabe , Yoshiaki Matsushita , Shin Yoshino
发明人: Yoshitaka Kojima , Hideyuki Arikawa , Mitsuo Haginoya , Katsuo Wada , Ryuta Watanabe , Yoshiaki Matsushita , Shin Yoshino
CPC分类号: C23C28/3215 , C23C28/345 , C23C28/3455 , C23C4/02 , Y02T50/67 , Y10T428/12535 , Y10T428/12611 , Y10T428/12618
摘要: A ceramic-coated blade of a gas turbine and a method of producing the same, in which the thickening of an Al.sub.2 O.sub.3 layer at the interface between a ceramic layer and a primary layer is sufficiently prevented for a long period of time, thereby positively suppressing the separation of the ceramic layer. Using powder of MCrAlY alloy (Co-32% Ni-21% Cr-8% Al-0.5% Y), a primary layer (alloy coating layer) is formed on a surface of a substrate made of a heat-resistant Ni base alloy (Rene'-80). Further, a heat-resistant ceramic layer, comprising a mixture of ion-conductive ZrO.sub.2 -8 wt. % Y.sub.2 O.sub.3 ceramic and insulative ceramic (e.g. Al.sub.2 O.sub.3), is formed on the alloy coating layer. This mixture has a columnar structure in which columnar crystals are grown by a gas phase in a direction of a thickness of the coating, or a porous structure in which flattened particles brought about from molten particles caused to fly at high velocity are laminated.
摘要翻译: 燃气轮机的陶瓷涂覆刀片及其制造方法,其中在陶瓷层和主层之间的界面处的Al 2 O 3层的增厚被充分地长时间地防止,从而积极地抑制 分离陶瓷层。 使用MCrAlY合金(Co-32%Ni-21%Cr-8%Al-0.5%Y)的粉末,在由耐热Ni基合金制成的基板的表面上形成一层(合金涂层) (Rene'-80)。 此外,一种耐热陶瓷层,其包含离子传导性ZrO 2 -8重量% %Y 2 O 3陶瓷和绝缘陶瓷(例如Al 2 O 3)形成在合金涂层上。 该混合物具有柱状结构,其中柱状结晶通过气相在涂层的厚度方向上生长,或多层结构,其中由熔融颗粒引起的高速飞行的扁平颗粒被层压。
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