ELECTRON METALLOGRAPHIC INVESTIGATIONS OF HEAT-RESISTANT ALLOYS. Progress Report No. 4 for August 15 to October 15, 1957

Technical Report · Sun Dec 01 04:00:00 EST 1957

OSTI ID:4246199

Bigelow, W C; Amy, J A; Devers, M W; Beissel, J E; MacLachlan, J A

BS>The work described includes: (1) the development of techniques for isolating grain-boundary carbides from nickel-base alloys, using extraction replica techniques applied to fractured surfaces, to facilitate studies of the carbides by electron microscopy and identification of them by electron diffraction; (2) preliminary testing of a vacuum cathodic etching apparatus; (3) continued work to identify the minor phases of Udimet-500 alloy and to determine the role of the elements boron and zirconium on the structure and distribution of these phases in the alloy; and (4) the melting, rolling, and heat-treatment of a series of alloys of special composition preparatory to undertaking studies of the influence of cobalt and molybdenum on the structure and properties of the Udimet- 500 alloy. ( auth)

• Research Organization: Michigan. Univ., Ann Arbor. Engineering Research Inst.
• NSA Number: NSA-13-014509
• OSTI ID: 4246199
• Report Number(s): ERI-2447-25-P; AD-151919
• Country of Publication: United States
• Language: English

Related Subjects

ALLOYS
ALUMINUM ALLOYS
BORON
CARBIDES
CATHODES
CHROMIUM ALLOYS
COBALT ALLOYS
CONFIGURATION
DIFFRACTION
EFFICIENCY
ELECTRON MICROSCOPY
ETCHING
GRAIN BOUNDARIES
HEAT RESISTING ALLOYS
HEAT TREATMENTS
MELTING
METALLOGRAPHY
METALLURGY AND CERAMICS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
ROLLING
TITANIUM ALLOYS
UDIMET
VACUUM
ZIRCONIUM