Aluminum Alloy 7050 Extrusions.

reportActive / Technical Report | Accession Number: ADB019780 | Open PDF

Abstract:

Practices for casting 25 and 35-inch diameter alloy 7050 ingot were developed effects of fabricating variables on mechanical properties and corrosion characteristics were evaluated, and aging conditions were established to produce two tempers, T7651X and T7351X, having two combinations of strength, stress-corrosion characteristics, and toughness. Twenty extruded shapes were subsequently fabricated to provide material for determination of design mechanical properties, modulus of elasticity, stress-strain curves, fracture toughness KIc, fatigue strengths, fatigue crack propagation rates, and stress- corrosion and corrosion characteristics. The alloy 7050 extrusions developed combinations of properties desired by the airframe industry that were superior to those of extrusions of commercially established aluminum alloys.

Author(s):
Staley, J. T. ; Jacoby, J. E. ; Davies, R. E. ; Nordmark, G. E. ; Walsh, J. D.
Author Organization(s):
ALUMINUM CO OF AMERICA ALCOA CENTER PA ALCOA LABS
Descriptive Note:
Final rept. Mar 1973-Jun 1976
Supplementary Note:
DOI: 10.21236/ADB019780
Pagination:
0370

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):
56-76-GE60, AFML-TR-76-129
Contract/Grant Number(s):
F33615-73-C-5015
Monitor Series:
TR-76-129, AFML
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_5.3.3_Develop Strategy; JCA_5.3.4_Develop Courses of Action; JCA_5.3.5_Analyze Courses of Action; JCA_1.2.5_Lessons Learned; JCA_1_Force Support; JCA_6_Net Centric; JCA_6.4.1_Secure Information Exchange; JCA_1.2_Force Preparation; JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_1.2.3_Educating; JCA_6.1_Information Transport; JCA_6.4_Information Assurance; JCA_4.6_Engineering; JCA_8.2_Shape; JCA_8_Building Partnerships; JCA_1.2.7_Experimentation; JCA_5.2_Understand
Modernization Areas:
Quantum Science and Computing; Directed Energy
Communities of Interest:
Ground and Sea Platforms
Descriptor(s):
*AIRFRAMES, *EXTRUSION, CASTING, CRACK PROPAGATION, FABRICATION, STRESS CORROSION
Field(s)/Group(s):
Aircraft, Properties of Metals and Alloys
Keyword(s):
Aluminum alloy 7050
Report Date:
1977 Mar 01