Accession Number : ADA954867

Title :   Cast Armor. Correlation between Metallurgical Properties of Several 1 inch and 2 inch Cast Armor Samples and Their Resistance to Various Degrees of Ballistic Shock.

Descriptive Note : Experimental rept.,

Corporate Author : WATERTOWN ARSENAL LABS MA

Personal Author(s) : Sullivan,J. F. ; Yoffa,M.

Report Date : 20 NOV 1945

Pagination or Media Count : 86

Abstract : The object of this report was to determine the metallurgical characteristics of 1 inch and 2 in cast armor samples after subjection to various degrees of ballistic shock, and, by the application of analytical methods devised at this laboratory, to determine the optimum conditions of ballistic shock testing for discrimination between material of good and poor metallurgical properties. Conclusions are the requirements for shock resistance of 1 inch and 2 inch cast armor plates submitted under Specification AXS-492-5 should reflect that (a) The projectiles used should be the 57 mm. proof projectile, T1, for 1 inch plates and the 105 mm. proof projectile, T8, for 2 inch plates: (b) The incident velocity for both projectiles should be 1030 + or - 15 feet-per-second; (c) The criterion of success should be the ability of the armor to resist cracking in any degree.

Descriptors :   ARMOR, ARMOR PLATE, BALLISTICS, CASTINGS, CRACKS, METALLURGY, OPTIMIZATION, PROJECTILES, SAMPLING, SHOCK TESTS

Subject Categories : Ballistics

Distribution Statement : APPROVED FOR PUBLIC RELEASE