Properties of ion implanted Ti-6Al-4V processed using beamline and PSII techniques

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The surface of Ti-6Al-4V (Ti64) alloy has been modified using beamline implantation of boron. In separate experiments, Ti64 has been implanted with nitrogen using a plasma source ion implantation (PSII) technique utilizing either ammonia (NH{sub 3}), nitrogen (N{sub 2}), or their combinations as the source of nitrogen ions. Beamline experiments have shown the hardness of the N-implanted surface saturates at a dose level of {approximately} 4 {times} 10{sup 17} at/cm{sup 2} at {approximately} 10 GPa. The present work makes comparisons of hardness and tribological tests of (1) B implantation using beamline techniques, and (2) N implanted samples using ammonia and/or ... continued below

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8 p.

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Walter, K.C.; Woodring, J.S.; Nastasi, M.; Munson, C.M.; Williams, J.M. & Poker, D.B. December 31, 1996.

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Description

The surface of Ti-6Al-4V (Ti64) alloy has been modified using beamline implantation of boron. In separate experiments, Ti64 has been implanted with nitrogen using a plasma source ion implantation (PSII) technique utilizing either ammonia (NH{sub 3}), nitrogen (N{sub 2}), or their combinations as the source of nitrogen ions. Beamline experiments have shown the hardness of the N-implanted surface saturates at a dose level of {approximately} 4 {times} 10{sup 17} at/cm{sup 2} at {approximately} 10 GPa. The present work makes comparisons of hardness and tribological tests of (1) B implantation using beamline techniques, and (2) N implanted samples using ammonia and/or nitrogen gas in a PSII process. The results show that PSII using N{sub 2} or NH{sub 3} gives similar hardness as N implantation using a beamline process. The presence of H in the Ti alloy surface does not affect the hardness of the implanted surface. Boron implantation increased the surface hardness by as much as 2.5x at the highest dose level. Wear testing by a pin-on-disk method indicated that nitrogen implantation reduced the wear rate by as much as 120x, and boron implantation reduced the wear rate by 6.5x. Increased wear resistance was accompanied by a decreased coefficient of friction.

Physical Description

8 p.

Notes

INIS; OSTI as DE97002619

Source

  • 1996 Fall meeting of the Materials Research Society (MRS), Boston, MA (United States), 2-6 Dec 1996

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  • Other: DE97002619
  • Report No.: CONF-961202--61
  • Grant Number: AC05-96OR22464;W-7405-ENG-36
  • DOI: 10.2172/432989 | External Link
  • Office of Scientific & Technical Information Report Number: 432989
  • Archival Resource Key: ark:/67531/metadc677412

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  • December 31, 1996

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • July 28, 2016, 7:45 p.m.

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Walter, K.C.; Woodring, J.S.; Nastasi, M.; Munson, C.M.; Williams, J.M. & Poker, D.B. Properties of ion implanted Ti-6Al-4V processed using beamline and PSII techniques, report, December 31, 1996; Tennessee. (digital.library.unt.edu/ark:/67531/metadc677412/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.