Alloy, alloy member and product

Abstract

An alloy according to the present embodiment contains Fe, Cr and V as a first element group. Said alloy may also contain one or more types of element selected from Mn, Co, Ni, Si, Ge, Ru and Pd as a second element group. When the total is 100 at % (hereinafter, written the same), the first element group each constitutes 10-45 at %, inclusive (at %=element ratio. Hereinafter, written as 10-45 at %). The Mg lattice mismatch is 13% or higher, and the dislocation movement barrier energy is 300 kJ/mol or higher.

1 . An alloy comprising:
 10 at % or more and 45 at % or less each of Fe, Cr, and V as a first element group, wherein
 a lattice mismatch with Mg is 13% or more; and 
 dislocation movement barrier energy is 300 kJ/mol or more. 
   
     
     
         2 . The alloy according to  claim 1 , further comprising:
 10 at % or more and 25 at % or less each of one or more types of element selected from a group consisting of Mn, Co, Ni, Si, Ge, Ru, and Pd, as a second element group.   
     
     
         3 . The alloy according to  claim 1 , further comprising:
 0.5 at % or more and 60 at % or less of B.   
     
     
         4 . The alloy according to  claim 1 , wherein Mg adsorption energy is 0.2 J/m2 or less. 
     
     
         5 . An alloy member comprising:
 at least partly an alloy comprising:
 10 at % or more and 45 at % or less each of Fe, Cr, and V as a first element group, wherein 
 a lattice mismatch with Mg is 13% or more; and 
 dislocation movement barrier energy is 300 kJ/mol or more. 
   
     
     
         6 . The alloy member according to  claim 5 , wherein
 the alloy further comprising:
 10 at % or more and 25 at % or less each of one or more types of element selected from a group consisting of Mn, Co, Ni, Si, Ge, Ru and Pd as a second element group. 
   
     
     
         7 . The alloy member according to  claim 5 , wherein Mg adsorption energy of the alloy is 0.2 J/m2 or less. 
     
     
         8 . A product comprising:
 at least partly the alloy member according to  claim 5 .   
     
     
         9 . The product according to  claim 8 , wherein the product is a metal mold for processing magnesium. 
     
     
         10 . The alloy according to  claim 2 , further comprising:
 0.5 at % or more and 60 at % or less of B.