Nickel in Non-ferrous General Engineering Alloys

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.