Malfunction and failure analysis investigations of C26000 (Cu-30% Zn) brass cartridge cases
- Army ARDEC, Picatinny Arsenal, NJ (United States). Metallic Materials Branch of the Armaments Technology Div.
The C26000 alloy, containing 70% Cu and 30% Zn, is predominantly used for cartridge case production and has an outstanding record of service. A multiple-step manufacturing process is employed to produce different microstructure in different sections of the cartridge case. The constant demands to increase performance have resulted in frequent revisions to the manufacturing process, and more stringent controls have been implemented in an attempt to produce a better product. Not surprisingly, however, failures and malfunctions are encountered in the tryout'' experiments. Studies indicate that failures in the head section can usually be traced to factors associated with gun design and propellant materials. Failures in the wall section are primarily stress-induced. Descriptions are given of the distinctive modes of failure in various sections of the cartridge case. The causes of failure and the remedies to prevent their recurrence are discussed.
- OSTI ID:
- 5029221
- Journal Information:
- Materials Characterization; (United States), Vol. 32:1; ISSN 1044-5803
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
AMMUNITION
CONTAINERS
FAILURE MODE ANALYSIS
COPPER BASE ALLOYS
ZINC ALLOYS
FABRICATION
ALLOYS
COPPER ALLOYS
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
450100* - Military Technology
Weaponry
& National Defense- Chemical Explosions & Explosives
360103 - Metals & Alloys- Mechanical Properties