High temperature oxidation characteristics of some Manganese-Aluminium Steels

Abstract

Conservation of nickel is problem of World interest, and is specially important to India as India has no known deposits of nickel. The majority of the high temperatures alloys in common use to day contain nickel in appreciable amounts. The need to develop heat-resistant alloys using indigenous materials is one of great significance both from the point of view of industry and defence. India has enormous resources of the metals iron, manganese and aluminum and in view of this a programme of research was initiated to study the possibilities of developing new heat-resistant alloys using these metals. Hattman and Ziegler had shown that iron or steel acquires a marked resistance against oxidation at high temperatures when alloyed with aluminium. Sykes had shown that the aluminum content must be near about 1000°C. Cornelius and Buugardt studied the effect of additions of various metals on the high temperature oxidation resistance of the 10% aluminium alloys, and decide that a high manganese content caused a definite increase in the scaling loss, so far as could be judged from tests on alloys contained 1 and 5 % manganese exposed at 1100°C.One of the present authors has drawn attention to the tarnish-resisting qualities of certain manganese-aluminium-iron-carbon alloys.