FRACTURE TOUGHNESS AND STRESS CORROSION CHARACTERISTICS OF ULTRAHIGH- STRENGTH 4340 STEEL - SUMMARY REVIEW

reportActive / Technical Report | Accession Number: ADA066814 | Open PDF

Abstract:

A review was made of the fracture toughness K sub Ic and stress corrosion K sub Iscc characteristics of 4340 steel within the 200 to 250 ksi yield strength range. This literature review was conducted in support of a fracture mechanics and environmental investigation of 4340 steel for the control section housing of the Copperhead CLGP Cannon-Launched Guided Projectile weapon system. Factors affecting toughness and corrosion cracking characteristics are considered. Also included are data pertaining to the damaging effects of humidity. Fracture toughness and stress corrosion cracking resistance of 4340 steel are usually higher in the alloys possessing lower yield strengths.

Author(s):
Wong, Anthony K. ; Levy, Milton ; Czyrklis, Walter F.
Author Organization(s):
ARMY MATERIALS AND MECHANICS RESEARCH CENTER WATERTOWN MA
Descriptive Note:
Final rept.
Supplementary Note:
DOI: 10.21236/ADA066814
Pagination:
0022

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-79-1
Project Number(s):
1X464621D073
Monitor Series:
AMMRC
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_4.6_Engineering
Modernization Areas:
Space
Communities of Interest:
Weapons Technologies
Descriptor(s):
*FRACTURE(MECHANICS), *STEEL, *HIGH STRENGTH ALLOYS, PLANE GEOMETRY, GUIDED PROJECTILES, STRESS CORROSION, YIELD STRENGTH, STORAGE, HUMIDITY, STRAIN(MECHANICS), TOUGHNESS, TEMPERATURE, CHEMICAL COMPOSITION
Field(s)/Group(s):
Properties of Metals and Alloys
Keyword(s):
STEEL 4340, PE64621A
Report Date:
1979 Feb 01
Creation Date:
1979 May 04