Mechanical Property and Microstructural Evaluation of Maraging Steels

reportActive / Technical Report | Accession Number: ADA050840 | Open PDF

Abstract:

This report contains the results of a material characterization study which was conducted on various grades of 18 percent nickel maraging steel which have been considered for use as the sheath material for the kinetic energy M-735 penetrator. Investigated grades include the 200, 250, 300, and 350. Data presented and discussed are hardness, tensile properties, hoop strength, Charpy impact, and fracture toughness KQ, WA, and KId. Additional areas addressed include material processing, chemistry, cleanliness, and heat treatment. Results of the study indicate that the materials generally meet the requirements put forth in MIL-S-46850A, the military specification under which they were procured. The 350 grade is not included in this specification.

Author(s):
Hickey, Jr, Charles F.
Author Organization(s):
ARMY MATERIALS AND MECHANICS RESEARCH CENTER WATERTOWN MA
Descriptive Note:
Final rept.
Supplementary Note:
DOI: 10.21236/ADA050840
Pagination:
0011

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AMMRC-MS-78-1
Project Number(s):
1T162105AH84
Monitor Series:
DARCOM
 Subject Terms
Joint Capability Areas:
JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_5_Command and Control; JCA_5.3_Planning
Communities of Interest:
Weapons Technologies
Descriptor(s):
*KINETIC ENERGY PROJECTILES, *MARAGING STEELS, FRACTURE(MECHANICS), IMPACT STRENGTH, CHARPY IMPACT TESTS, HARDNESS, TENSILE PROPERTIES, MICROSTRUCTURE, NICKEL ALLOYS
Field(s)/Group(s):
Properties of Metals and Alloys, Ammunition and Explosives
Keyword(s):
M 735 PROJECTILES, SHEATHS, ASH84, PE62105A
Report Date:
1977 Jan 01