Surface mechanical properties and wear behavior of ion implanted TiB/sub 2/

Conference · Sat Dec 31 23:00:00 EST 1983

OSTI ID:6420973

McHargue, C J; Yust, C S; Angelini, P; Sklad, P S; Lewis, M B

Implantation of 1 x 10/sup 17/ Ni.cm/sup -2/ (1 MeV) into polycrystalline TiB/sub 2/ produced an altered microstructure to a depth of 750 nm. The implantation damage was in the form of coarse dislocation tangles near the surface and fine damage structure at greater depths. The surface mechanical properties, as measured by Knoop micro-indentation hardness, indentation fracture toughness and scratch-wear resistance, were increased by 50 to 110% by implantation. During pin-on-disk tests, entire grains were removed by the process of grain boundary cracking.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6420973
• Report Number(s): CONF-8409117-3; ON: DE85001130
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360206* -- Ceramics
Cermets
& Refractories-- Radiation Effects
BORIDES
BORON COMPOUNDS
CHARGED PARTICLES
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DISLOCATIONS
ENERGY RANGE
ION IMPLANTATION
IONS
KNOOP HARDNESS
LINE DEFECTS
MECHANICAL PROPERTIES
MEV RANGE
MEV RANGE 01-10
MICROSTRUCTURE
NICKEL IONS
TITANIUM BORIDES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
WEAR RESISTANCE