COPPER CHROMIUM ALLOY WIRE ROD AND NON-HEATING MANUFACTURING METHOD OF HIGH STRENGTH AND HIGH DUCTILITY COPPER CHROMIUM ALLOY WIRE ROD

摘要

PROBLEM TO BE SOLVED: To provide a copper chromium alloy wire rod satisfying alleviation requirements of heat treatment condition which become important factors for cost rise while satisfying strength and elongation at the same time.;SOLUTION: There is provided a copper chromium alloy wire rod having the chromium content of 3 at% to 6 at% and the balance copper, and containing crystal grains of copper and a fibrous body parallel to a longer direction and formed by chromium thereinside, and the average diameter of the fibrous body is 300 nm to 350 nm and the average diameter of the crystal grain of the copper is 400 nm to 500 nm.;COPYRIGHT: (C)2014,JPO&INPIT