PRODUCTION OF EXTRUSION BILLET OF HIGH TEMPERATURE AIRCRAFT ALLOYS BY POWDER METALLURGY. PHASE II. Second Interim Engineering Report for Period December 7, 1959-April 7, 1960

Technical Report · Tue Oct 31 04:00:00 EST 1961

OSTI ID:4108760

Toaz, M W

Extrusion billets of Armco Steel's PH 15-7 Mo (Cr-FeMo-Ni alloy) and General Electric's Rene 41 (Al- CrCo -Fe-Mo -Ni-Ti alloy) were prepared by powder metallurgy techniques. Billet fabrication was investigated relative to billet heating by induction or resistance, lubricarts, reduction ratios of 8: 1, 12: 1, and 16: 1, and consolidation by either hydrostatic or cold press. Green powder billets of a density 60 to 70% of that of the wrought material were extruded to densities only slightly below or, in many cases, equal to those of the wrought material. The grain size of the extruded Rene 41 alloy was about two to three times finer than that found in equivalent forged wrought material. Tensile strengths in the Rene 41 powder billet extrusions were comparable to those reported for cast and wrought material. (C.J.G.)

• Research Organization: Clevite Corp. Mechanical Research Div., Cleveland
• NSA Number: NSA-15-004268
• OSTI ID: 4108760
• Report Number(s): AD-236286
• Country of Publication: United States
• Language: English

Related Subjects

AIRCRAFT
ALUMINUM ALLOYS
CASTING
CHROMIUM ALLOYS
COBALT ALLOYS
COLD WORKING
DENSITY
EXTRUSION
FABRICATION
FORGING
GRAIN SIZE
HEATING
HIGH TEMPERATURE
HYDRAULICS
INDUCTION
IRON ALLOYS
LUBRICATION
METALS, CERAMICS, AND OTHER MATERIALS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
POWDER METALLURGY
PREPARATION
PRESSURE
PRODUCTION
RESISTORS
RODS
STRESSES
TENSILE PROPERTIES
TITANIUM ALLOYS