Accession Number:

AD0265196

Title:

HARD PARTICLE STRENGTHENING OF REFRACTORY METALS FOR HIGH TEMPERATURE USE THROUGH INTERNAL OXIDATION

Descriptive Note:

Corporate Author:

NEW ENGLAND MATERIALS LAB INC MEDFORD MASS

Personal Author(s):

• BUFFERD,A.S.
• ZWILSKY,K.M.
• GRANT,N.J.

Report Date:

1961-07-31

Pagination or Media Count:

1.0

Abstract:

The recrystallization temperature of 2 internally oxidized Mo-1.5 Ti alloys was determined. The alloy extruded with the lower reduction ratio of 4 to 1 had a recrystallization temperature of 2650 F, whereas the alloy extruded with a 6 to 1 ratio recrystallized at about 2400 F. Stress-rupture tests in Ar at 2200 F of 3 internally oxidized alloys recrystallized during Dynapak extrusion gave lower properties than were obtained for stressrelieved arc cast Mo-1.5 Ti. Author

Descriptors:

• *DISPERSION HARDENING
• *HEAT RESISTANT ALLOYS
• *MOLYBDENUM ALLOYS
• *REFRACTORY MATERIALS
• CASTINGS
• CRYSTALLIZATION
• DIFFUSION
• DIOXIDES
• EXPLOSIVE FORMING
• EXTRUSION
• GRAIN STRUCTURES(METALLURGY)
• MICROSTRUCTURE
• OXIDATION
• OXYGEN
• PARTICLES
• POWDER ALLOYS
• RUPTURE
• SINTERING
• STRESSES
• TITANIUM
• TITANIUM ALLOYS
• TITANIUM COMPOUNDS
• TRANSITION TEMPERATURE

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE