Effects of ultrasonic nanocrystal surface modification on the thermal oxidation behavior of Ti6Al4V

Jun Liu, Sergey Suslov, Shengxi Li, Haifeng Qin, Zhencheng Ren, Chi Ma, Guo Xiang Wang, Gary L. Doll, Hongbo Cong, Yalin Dong, Chang Ye

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The effects of Ultrasonic Nanocrystal Surface Modification (UNSM) on the thermal oxidation (TO) behavior of Ti6Al4V alloy has been investigated. The thermal oxidation was carried out at 500, 600 and 700 °C. The microstructure after UNSM and TO was characterized using scanning electron microscopy with energy dispersive spectroscopy. And phase identification was performed using X-ray diffraction. At 500 and 600 °C, the reaction capability are enhanced and the oxidation layer thickness is increased in the UNSM-treated Ti6Al4V alloy. This is attributed to nanoscale grain boundaries created by UNSM that serve as efficient diffusivity paths for interstitial gaseous atoms. When the TO temperature rises to 700 °C, due to dislocation elimination and grain coarsening induced by the high temperature, the oxidation layer thickness of the Ti6Al4V specimens show no significant difference.

Original languageEnglish
Pages (from-to)289-298
Number of pages10
JournalSurface and Coatings Technology
Volume325
DOIs
Publication statusPublished - 25 Sep 2017

Fingerprint

Nanocrystals
Surface treatment
nanocrystals
ultrasonics
Ultrasonics
Oxidation
oxidation
Coarsening
diffusivity
Hot Temperature
titanium alloy (TiAl6V4)
Energy dispersive spectroscopy
elimination
interstitials
Grain boundaries
grain boundaries
X ray diffraction
Atoms
Temperature
microstructure

Keywords

  • Nanograins
  • Surface severe plastic deformation
  • Thermal oxidation
  • Ti6Al4V
  • UNSM

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Effects of ultrasonic nanocrystal surface modification on the thermal oxidation behavior of Ti6Al4V. / Liu, Jun; Suslov, Sergey; Li, Shengxi; Qin, Haifeng; Ren, Zhencheng; Ma, Chi; Wang, Guo Xiang; Doll, Gary L.; Cong, Hongbo; Dong, Yalin; Ye, Chang.

In: Surface and Coatings Technology, Vol. 325, 25.09.2017, p. 289-298.

Research output: Contribution to journalArticle

Liu, Jun ; Suslov, Sergey ; Li, Shengxi ; Qin, Haifeng ; Ren, Zhencheng ; Ma, Chi ; Wang, Guo Xiang ; Doll, Gary L. ; Cong, Hongbo ; Dong, Yalin ; Ye, Chang. / Effects of ultrasonic nanocrystal surface modification on the thermal oxidation behavior of Ti6Al4V. In: Surface and Coatings Technology. 2017 ; Vol. 325. pp. 289-298.
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