Effect of Wear-Reducing Additives on Heat Transfer into the 155mm M185 Cannon.
Abstract
The 155mm propelling charge, XM201E2, is in development as a replacement for the M119 propelling charge. Among the requirements set for acceptance of the XM201E2 charge is that the wear life of the gun tube must not be reduced. The developers of the XM201E2 charge included a TiO2/wax wear-reducing liner to try to insure that the wear life of both charges would be the same. During the wear test of the XM201E2 charge, it was soon evident that the XM201E2 charge was more erosive than the M119 charge. A hypothesis was tendered that the wear-reducing liner in the XM201E2 charge was not exerting any influence on the wear rate. In order to test this hypothesis and to suggest ways to reduce the erosiveness of the XM201E2 charge, heat transfer measurements were made in a 155mm M185 cannon firing various propelling charges equipped with and without wear-reducing additives. The wear-reducing additives did reduce the erosion rate of the cannon, and the heat transfer measurements detected significant differences in the total heat transferred to the gun barrel in the presence of the wear-reducing additives.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1977
- Accession Number
- ADA037374
Entities
People
- J. Richard Ward
- Timothy L. Brosseau
Organizations
- Ballistic Research Laboratory