Ambient Temperature Properties of PM (Powder Metal) Aluminum-Titanium Alloys

reportActive / Technical Report | Accession Number: ADA205997 | Open PDF

Abstract:

The structure and properties of dispersion strengthened aluminum 4 and 6 weight percent titanium powder alloys were investigated as candidate materials for high temperature performance. Alloy rod was extruded from vacuum hot pressed billets of helium gas atomized, mechanically alloyed, and atomized plus mechanically alloyed powder. Microstructure and mechanical properties were fully characterized to assess the effect of disperoids on alloy strength, ductility, notch toughness, and modulus. The alloys exhibited low density 2.8g cm3, high modulus 85 GPa, good ductility 12, and strength equivalent to Al-Fe-Ce alloys, e.g., 120 MPa at 250-300 C.

Author(s):
Frazier, William E. ; Koczak, Michael J.
Author Organization(s):
NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA AIR VEHICLE AND CREW SYSTEMS TECHNOLOGY DEPT
Descriptive Note:
Final rept.
Supplementary Note:
Prepared in collaboration with Drexel Univ., Philadelphia, PA.
Pagination:
0035

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):
NADC-88067-60
Project Number(s):
RS34A57
Monitor Series:
NADC
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_1_Force Support; JCA_6_Net Centric; JCA_1.2_Force Preparation; JCA_4.6_Engineering; JCA_1.2.3_Educating; JCA_3.2_Engagement; JCA_3_Force Application; JCA_6.1_Information Transport
Communities of Interest:
Weapons Technologies
Descriptor(s):
*CERIUM ALLOYS, *POWDER METALS, *ALUMINUM ALLOYS, HIGH TEMPERATURE, VACUUM, HOT PRESSING, ALLOYS, GASES, STRENGTH(GENERAL), HELIUM, IRON ALLOYS, DUCTILITY, LOW DENSITY, RODS, TITANIUM ALLOYS, NOTCH TOUGHNESS, POWDER ALLOYS, MICROSTRUCTURE, BILLETS, TEMPERATURE, MECHANICAL PROPERTIES
Field(s)/Group(s):
Metallurgy and Metallography
Keyword(s):
PE62234N
Report Date:
1988 Jun 01