The present invention provides a manufacturing method for an
oxide-dispersed alloy in which dispersed particles consisting of oxides
of one or two or more kinds of additive metals are dispersed in a matrix
metal, comprising the steps of (a) manufacturing alloy powder or an alloy
wire rod consisting of the matrix metal and the additive metal; (b)
oxidizing the additive metal in the alloy powder by water to form
dispersed particles by introducing the alloy powder or alloy wire rod
into a high-energy ball mill with water and by making agitation; and (c)
moldedin solidifying the alloy powder or alloy wire rod after oxidation.
The present invention is especially useful in manufacturing an
oxide-dispersed alloy in which the free energy of oxide formation of the
matrix metal is higher than water standard free energy of formation, and
the free energy of oxide formation of the additive metal is lower than
water standard free energy of formation.