Synthesis of new superhard materials and their application to cutting tools. Semi-annual technical report No. 4, 1 Oct 1975--31 Mar 1976. [Activated reactive evaporation]
Technical Report
·
OSTI ID:7318396
The process of Activated Reactive Evaporation is used to synthesize superhard materials like carbides, oxides, nitrides and ultrafine grain cermets. The deposits are characterized by hardness, microstructure, microprobe analysis for chemistry and lattice parameter measurements. The synthesis and characterization of TiC-Ni cermets and Al/sub 2/O/sub 3/ are given. High speed steel tool coated with TiC, TiC-Ni and TaC are tested for machining performance at different speeds and feeds. The machining evaluation and the selection of coatings is based on the rate of deterioration of the coating tool temperature, and cutting forces. Tool life tests show coated high speed steel tools having 150 to 300% improvement in tool life compared to uncoated tools. Variability in the quality of the ground edge on high speed steel inserts produce a great scatter in the machining evaluation data.
- Research Organization:
- California Univ., Los Angeles (USA). School of Engineering and Applied Science
- OSTI ID:
- 7318396
- Report Number(s):
- AD-A-032856; UCLA-ENG-7659
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBIDES
CARBON COMPOUNDS
CERMETS
CHALCOGENIDES
COATINGS
COMPOSITE MATERIALS
CRYSTAL STRUCTURE
CUTTING TOOLS
ELEMENTS
FABRICATION
HARDNESS
LATTICE PARAMETERS
MECHANICAL PROPERTIES
METALS
MICROSTRUCTURE
NICKEL
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
PNICTIDES
TANTALUM CARBIDES
TANTALUM COMPOUNDS
TITANIUM CARBIDES
TITANIUM COMPOUNDS
TOOLS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBIDES
CARBON COMPOUNDS
CERMETS
CHALCOGENIDES
COATINGS
COMPOSITE MATERIALS
CRYSTAL STRUCTURE
CUTTING TOOLS
ELEMENTS
FABRICATION
HARDNESS
LATTICE PARAMETERS
MECHANICAL PROPERTIES
METALS
MICROSTRUCTURE
NICKEL
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
PNICTIDES
TANTALUM CARBIDES
TANTALUM COMPOUNDS
TITANIUM CARBIDES
TITANIUM COMPOUNDS
TOOLS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS