Accession Number : AD0431311


Title :   EFFECT OF TEMPERING ON NOTCH PROPERTIES OF D6AC ALLOY STEEL SHEET


Corporate Author : ARMY MATERIALS RESEARCH AGENCY WATERTOWN MA


Personal Author(s) : Katz, Robert N


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/431311.pdf


Report Date : Dec 1963


Pagination or Media Count : 28


Abstract : A study of the strength and notch properties of D6AC (consumable electrode, vacuum-melted Cr-Mo-V) steel sheet, 0.040 inch thick, was conducted to evaluate the effect of tempering for various test temperatures. Smooth tensile, edge-notched tensile, and precracked subsize Charpy specimens were employed. Tempering in the range of 1000F to 1100F provided good fracture toughness with slight loss in strength properties that would be expected at higher tempers. The results are compared with burst tests conducted on Shillelagh motor cases made from the 0.040-in.-thick D6AC steel.


Descriptors :   *HEAT TREATMENT , *STEEL , AUSTENITE , CHEMICAL ANALYSIS , CHROMIUM ALLOYS , FRACTURE(MECHANICS) , MARTENSITE , MECHANICAL PROPERTIES , MOLYBDENUM ALLOYS , ROCKET ENGINE CASES , SHEAR STRESSES , SHEETS , TEMPERATURE , TENSILE PROPERTIES , TOUGHNESS , TRANSITION TEMPERATURE , VANADIUM ALLOYS


Subject Categories : Mfg & Industrial Eng & Control of Product Sys


Distribution Statement : APPROVED FOR PUBLIC RELEASE