Manufacturing method of Ni-base superalloy wire and Ni-base superalloy wire

摘要

A method for producing a Ni-base superheat-resistant alloy wire excellent in bending workability and a Ni-base superheat-resistant alloy wire are provided. A rod preparation process for preparing a rod of Ni-base super heat-resistant alloy, and plastic working with a processing rate of 40% or less at a temperature of 500 ° C. or less from the circumferential surface of the rod toward the axis Is performed a plurality of times until the cumulative processing rate reaches 60% or more, and a bar processing step of compressing the cross-sectional area of the bar, the method for producing a Ni-based superalloy wire. And it is a manufacturing method of the Ni base superalloy wire which has a heat treatment process which heat-treats the Ni base superheat-resistant alloy wire obtained at the above-mentioned bar material processing process at the temperature exceeding 500 ° C further. Ni-base superalloy wires obtained by these manufacturing methods have a plastic working structure or a recrystallized structure.