Fine crystallite high-function metal alloy member and method for manufacturing same

Abstract

Provided by the present invention are a fine crystallite high-function metal alloy member, a method for manufacturing the same, and a business development method thereof, in which a crystallite of a metal alloy including a high-purity metal alloy whose crystal lattice is a face-centered cubic lattice, a body-centered cubic lattice, or a close-packed hexagonal lattice is made fine with the size in the level of nanometers (10 −9 m to 10 −6 m) and micrometers (10 −6 m to 10 −3 m), and the form thereof is adjusted, thereby remedying drawbacks thereof and enhancing various characteristics without losing superior characteristics owned by the alloy.

1 - 27 . (canceled) 
     
     
         28 . A fine crystallite high-function metal alloy member, wherein a metal alloy including a high-purity metal alloy whose crystal lattice is a face-centered cubic lattice, a body-centered cubic lattice, or a close-packed hexagonal lattice is made to contain therein 5 to 30000 ppm of gadolinium (Gd), and the crystallite thereof is made fine with the size in the level of nanometers (10 −9  m to 10 −6  m) and micrometers (10 −6  m to 10 −3  m). 
     
     
         29 . A method for producing a fine crystallite high-function metal alloy member, wherein the method comprises:
 adding 5 to 30000 ppm of gadolinium (Gd) to a metal alloy including a high-purity metal alloy whose crystal lattice is a face-centered cubic lattice, a body-centered cubic lattice, or a close-packed hexagonal lattice; and   cast-molding an obtained material to make a crystallite thereof fine with the size in the level of nanometers (10 −9  m to 10 −6  m) and micrometers (10 −6  m to 10 −3  m).   
     
     
         30 . The method according to  claim 29 , wherein said metal alloy is a metal alloy including a high-purity metal alloy whose crystal lattice is a face-centered cubic lattice. 
     
     
         31 . The method according to  claim 29 , wherein said metal alloy including a high-purity metal alloy is a metal alloy including a high-purity metal alloy of a metal selected from the group consisting of gold (Au), silver (Ag), platinum (Pt), palladium (Pd), aluminum (Al), magnesium (Mg), copper (Cu), iron (Fe) and titanium (Ti). 
     
     
         32 . The method according to  claim 29 , wherein said gadolinium (Gd) is gadolinium (Gd) solely, or gadolinium (Gd) with at least one element selected from a group consisting of elements other than gadolinium (Gd). 
     
     
         33 . The method according to  claim 29 , wherein the method comprises:
 cast-molding the obtained material; and   subjecting the obtained material to a solution treatment.   
     
     
         34 . The method according to  claim 29 , wherein the method comprises:
 cast-molding the obtained material;   subjecting the obtained material to a solution treatment; and   subjecting the obtained material to an ageing treatment.   
     
     
         35 . The method according to  claim 29 , wherein the method comprises:
 cast-molding the obtained material;   subjecting the obtained material to a solution treatment;   processing the obtained material to a prescribed form; and   subjecting the obtained material to an ageing treatment before and after the processing.   
     
     
         36 . The method according to  claim 35 , wherein after the solution treatment, the processing and the ageing treatment are conducted alternately and repeatedly. 
     
     
         37 . The method according to  claim 34 , wherein the solution treatment is conducted by rapidly cooling the metal alloy after heating it in a temperature range of 200 to 2800° C., and the ageing treatment is conducted by heat-treating a crystalline metal alloy in a temperature range of 100 to 1600° C. 
     
     
         38 . The method according to  claim 34 , wherein temperature of the solution treatment is in a range of 300 to 2800° C. and temperature of the ageing treatment is in a range of 100 to 1400° C. 
     
     
         39 . The method according to  claim 34 , wherein temperature of the solution treatment is in a range of 300 to 2700° C. and temperature of the ageing treatment is in a range of 50 to 1000° C. 
     
     
         40 . The method according to  claim 34 , wherein temperature of the solution treatment is in a range of 250 to 2500° C. and temperature of the ageing treatment is in a range of 100 to 800° C. 
     
     
         41 . The fine crystallite high-function metal alloy member according to  claim 28 , wherein the member is obtainable by adding 5 to 30000 ppm of gadolinium (Gd) to a metal alloy including a high-purity metal alloy whose crystal lattice is a face-centered cubic lattice, a body-centered cubic lattice, or a close-packed hexagonal lattice, and cast-molding the obtained material. 
     
     
         42 . The fine crystallite high-function metal alloy member according to  claim 28 , wherein said metal alloy is a metal alloy including a high-purity metal alloy whose crystal lattice is a face-centered cubic lattice. 
     
     
         43 . The fine crystallite high-function metal alloy member according to  claim 28 , wherein said metal alloy including a high-purity metal alloy is a metal alloy including a high-purity metal alloy of a metal selected from the group consisting of gold (Au), silver (Ag), platinum (Pt), palladium (Pd), aluminum (Al), magnesium (Mg), copper (Cu), iron (Fe) and titanium (Ti). 
     
     
         44 . The fine crystallite high-function metal alloy member according to  claim 28 , wherein said gadolinium (Gd) is gadolinium (Gd) solely, or gadolinium (Gd) with at least one element selected from the group consisting of elements other than gadolinium (Gd). 
     
     
         45 . The fine crystallite high-function metal alloy member according to  claim 41 , wherein said metal alloy including a high-purity metal alloy is a metal alloy including a high-purity metal alloy of a metal selected from the group consisting of gold (Au), silver (Ag), platinum (Pt), palladium (Pd), aluminum (Al), magnesium (Mg), copper (Cu), iron (Fe) and titanium (Ti). 
     
     
         46 . The fine crystallite high-function metal alloy member according to  claim 41 , wherein said gadolinium (Gd) is gadolinium (Gd) solely, or gadolinium (Gd) with at least one element selected from the group consisting of elements other than gadolinium (Gd). 
     
     
         47 . A product with reduced size and weight, a musical instrument material, an electronic material, a jewelry material, a structural material, an automobile part or an aerial part, using the fine crystallite high-function metal alloy member according to  claim 41 .