ABSTRACT
This chapter is a brief consideration of nickel and its alloys, titanium and its alloys, magnesium-base alloys, zinc-base alloys and the bearing metals. The Ancient Chinese used the alloys that are similar in composition to the nickel silvers, and the nickel itself was not discovered in Europe until 1750. The chapter begins by referring to a few of the more uncommon metals which have lately found use in engineering practice and it is appropriate to close with some details of them in the form of where these metals are listed in order of atomic number. A well-known high-temperature alloy introduced many years ago is 'Iconel'. It contains 80" nickel, 14" chromium and 6" iron, and is used for many purposes, including food-processing plant, hot-gas exhaust manifolds and heating elements for cookers. This great affinity for oxygen makes it more difficult to deal with in the foundry than the other light alloys.
