Abstract: Provided is a corrosion-resistant and wear-resistant member where a thermal-sprayed layer having corrosion resistance and wear resistance is formed on a surface of a metallic member which is brought into contact with a resin which generates a highly corrosive gas. Also provided is a thermal-spraying powder. The highly corrosion-resistant and wear-resistant member having a thermal-sprayed layer is one obtained by thermally spraying metallic powder on a metallic base material to form a thermal-sprayed layer on a surface of the metallic base material. The member is characterized in that the thermal-sprayed layer is a composite boride cermet of a tetragonal Mo2 (Ni,Cr) B2-type or a tetragonal Mo2 (Ni, Cr, V) B2-type. The powder for forming a thermal-sprayed layer is made of a composite boride cermet of a Mo2 (Ni, Cr) B2-type and comprises 4.0 to 6.5 mass % of boron, 39.0 to 64.0 mass % of molybdenum, and 7.5 to 20.0 mass % of chromium, a balance being 5 mass % or more of nickel and unavoidable elements.

Abstract: There is provided a laminated tube including a first layer composed of a first material containing tungsten, a second layer formed on the outer peripheral surface of the first layer and composed of a second material having the property of causing no transformation accompanied by expansion when the second material is cooled from a temperature higher by 1,000° C. or more than the melting point of the second material down to 25° C., and a third layer formed on the outer peripheral surface of the second layer and composed of a third material having the property of being capable of causing a transformation accompanied by expansion when the third material is cooled from a temperature higher by 1,000° C. or more than the melting point of the third material down to 25° C.

Abstract: Provided is a corrosion-resistant and wear-resistant member where a thermal-sprayed layer having corrosion resistance and wear resistance is formed on a surface of a metallic member which is brought into contact with a resin which generates a highly corrosive gas. Also provided is a thermal-spraying powder. The highly corrosion-resistant and wear-resistant member having a thermal-sprayed layer is one obtained by thermally spraying metallic powder on a metallic base material to form a thermal-sprayed layer on a surface of the metallic base material. The member is characterized in that the thermal-sprayed layer is a composite boride cermet of a tetragonal Mo2 (Ni,Cr) B2-type or a tetragonal Mo2 (Ni, Cr, V) B2-type. The powder for forming a thermal-sprayed layer is made of a composite boride cermet of a Mo2 (Ni, Cr) B2-type and comprises 4.0 to 6.5 mass % of boron, 39.0 to 64.0 mass % of molybdenum, and 7.5 to 20.0 mass % of chromium, a balance being 5 mass % or more of nickel and unavoidable elements.

Abstract: Provided is a corrosion-resistant and wear-resistant member where a thermal-sprayed layer having corrosion resistance and wear resistance is formed on a surface of a metallic member which is brought into contact with a resin which generates a highly corrosive gas. Also provided is a thermal-spraying powder. The highly corrosion-resistant and wear-resistant member having a thermal-sprayed layer is one obtained by thermally spraying metallic powder on a metallic base material to form a thermal-sprayed layer on a surface of the metallic base material. The member is characterized in that the thermal-sprayed layer is a composite boride cermet of a tetragonal Mo2 (Ni,Cr)B2-type or a tetragonal Mo2 (Ni,Cr,V)B2-type. The powder for forming a thermal-sprayed layer is made of a composite boride cermet of a Mo2 (Ni,Cr)B2-type and comprises 4.0 to 6.5 mass % of boron, 39.0 to 64.0 mass % of molybdenum, and 7.5 to 20.0 mass % of chromium, a balance being 5 mass % or more of nickel and unavoidable elements.

Abstract: Provided is a corrosion-resistant and wear-resistant member where a thermal-sprayed layer having corrosion resistance and wear resistance is formed on a surface of a metallic member which is brought into contact with a resin which generates a highly corrosive gas. Also provided is a thermal-spraying powder. The highly corrosion-resistant and wear-resistant member having a thermal-sprayed layer is one obtained by thermally spraying metallic powder on a metallic base material to form a thermal-sprayed layer on a surface of the metallic base material. The member is characterized in that the thermal-sprayed layer is a composite boride cermet of a tetragonal Mo2(Ni,Cr)B2-type or a tetragonal Mo2(Ni,Cr,V)B2-type. The powder for forming a thermal-sprayed layer is made of a composite boride cermet of a Mo2(Ni, Cr)B2-type and comprises 4.0 to 6.5 mass % of boron, 39.0 to 64.0 mass % of molybdenum, and 7.5 to 20.0 mass % of chromium, a balance being 5 mass % or more of nickel and unavoidable elements.