Role of Indian Ordnance Factories in the Development of some of the Important Cast and Wrought Aluminium Alloys during the last three decades

Chatterjee, D P (1968) Role of Indian Ordnance Factories in the Development of some of the Important Cast and Wrought Aluminium Alloys during the last three decades. In: Symposium on Non-ferrous Metals Technology:Papers for Presentation, 4th - 7th Dec.1968, National Metallurgical Laboratory(CSIR), Jamshedpur.

[img]PDF
561Kb

Abstract

Aluminium is one of the newest of the major indus-trial metals. More than a century back, in 1954, the first industrial process of reduction by Henri Saint - Claire Deville was estabilished and the 75th anniversary of the discovery by Paul Heroult in France and Charless Hall in America of the electrolytic process of extraction was cele-brated in 1961. Its earlier industrial development follo-wed the same traditional pattern of the older metals, but in the first decade of 20th century certain aluminium alloys were found to exhibit age-hardening properties which were until then/quite unknown. The discovery by Alfred Wilm of the effect of quenching the solid solution alloy, with its subsequent ability to strengthen by prec-ipitation opened up new and exciting prospects. New fami-lies of aluminium alloys have now been developed and brou-ght into successful commercial use. The use of optical and electron microscopes to investigate the structural changes and the adoption of X-ray crystallography, all contributed to the general under- standing of the solution-treatment and age-hardening phenomena.

Item Type:Conference or Workshop Item (Lecture)
Official URL/DOI:http://eprints.nmlindia.org/4443
Uncontrolled Keywords:Ordnance factories; wrought aluminium alloys; aluminium alloy
Divisions:Metal Extraction and Forming
ID Code:4443
Deposited By:Sahu A K
Deposited On:19 Dec 2011 16:21
Last Modified:19 Dec 2011 16:21
Related URLs:

Repository Staff Only: item control page