Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Tests on MagnesiumZirconium Alloy Castings

Tests on MagnesiumZirconium Alloy Castings THE demands made on equipment for the modern aircraft have been commented on increasingly of recent years, and as with all that goes into aircraft, there is the perennial requirement for minimum weight. With this in mind magnesiumzirconium alloys have been studied by Dowty Fuel Systems Ltd. for use in such components as the bodies of items of hydraulic equipment. Magnesium alloys in general are very light, having a specific gravity of about 18, which is not much more than that of such nonmetallic materials as glass fibre laminates, but their physical properties are rather low, and they are subject to corrosion. However, alloys containing zirconium, such as ZRE 1, are much less liable to microporosity than other magnesium alloys, and have correspondingly improved mechanical properties, apart from the fact that porosity affects directly hydraulic equipment operating at the high pressures now common. In order to assess the suitability of this alloy for such applications a series of tests was carried out to check strength and freedom from porosity. Sand castings were obtained, of fairly large mass relative to the dimensions, the form being shown in FIG. 1. A number of bores were made so as to provide conditions similar to those in a functioning production unit, and porosity and strength checked by static pressure and pulsation tests. Details of the results are given below. Thread shear tests and tests on the use of circlips to retain plugs in the bores were also carried out. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Aircraft Engineering and Aerospace Technology Emerald Publishing

Tests on MagnesiumZirconium Alloy Castings

Aircraft Engineering and Aerospace Technology , Volume 26 (5): 6 – May 1, 1954
Download PDF
3 pages

Loading next page...
 
/lp/emerald-publishing/tests-on-magnesiumzirconium-alloy-castings-KvUexzOmeX
Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0002-2667
DOI
10.1108/eb032426
Publisher site
See Article on Publisher Site

Abstract

THE demands made on equipment for the modern aircraft have been commented on increasingly of recent years, and as with all that goes into aircraft, there is the perennial requirement for minimum weight. With this in mind magnesiumzirconium alloys have been studied by Dowty Fuel Systems Ltd. for use in such components as the bodies of items of hydraulic equipment. Magnesium alloys in general are very light, having a specific gravity of about 18, which is not much more than that of such nonmetallic materials as glass fibre laminates, but their physical properties are rather low, and they are subject to corrosion. However, alloys containing zirconium, such as ZRE 1, are much less liable to microporosity than other magnesium alloys, and have correspondingly improved mechanical properties, apart from the fact that porosity affects directly hydraulic equipment operating at the high pressures now common. In order to assess the suitability of this alloy for such applications a series of tests was carried out to check strength and freedom from porosity. Sand castings were obtained, of fairly large mass relative to the dimensions, the form being shown in FIG. 1. A number of bores were made so as to provide conditions similar to those in a functioning production unit, and porosity and strength checked by static pressure and pulsation tests. Details of the results are given below. Thread shear tests and tests on the use of circlips to retain plugs in the bores were also carried out.

Journal

Aircraft Engineering and Aerospace Technology – Emerald Publishing

Published: May 1, 1954

There are no references for this article.