Precipitation hardening in nickel-copper base alloy monel K 500

Abstract

The occurrence of a significant amount of age hardening, due to the precipitation of the γ' phase, has been demonstrated in the nickel-copper base alloy MONEL K 500. The micro-structure of the precipitation-hardened and deformed alloy has been examined in peak-aged underaged and overaged conditions. An attempt has been made to compare the observed increments in strength in these three aged conditions to those predicted on the basis of relevant theoretical models.