Nickel in Non-ferrous General Engineering Alloys

Abstract

ALTHOUGH nickel in its wrought forms has important applications as an engineering material, particularly in the chemical and electronic industries, the major usage of the metal, in both ferrous and non-ferrous metallurgy, is as an alloying element. Nickel-base alloys can be broadly divided into the nickel-chromium -base " Superalloys" for high-temperature service , and materials , such as nickel-copper and nickel-chromium- iron alloys, which are used for more general engineering purposes, particularly where resist-ance to corrosion is involved. The technology of the former type of material tends to be rather specialized, since it is concerned very largely with high-temperature properties, and it is not proposed to discuss these high-temperature alloys in this paper but to describe some recent developments in the nickel-base alloys of general engineering interest and in the nickel-containing copper-base and aluminiumbase alloys.