Effect of fine particle peening on atmospheric oxidation behavior of Ti-6Al-4V alloy

Shoichi Kikuchi, Jun Komotori

研究成果: Article査読

12 被引用数 (Scopus)

抄録

The effect of a fine particle peening (FPP) on atmospheric oxidation behavior and tribological properties of Ti-6Al-4V alloy was evaluated. Surface microstructures of oxidized specimens pre-treated with FPP were characterized using scanning electron microscope (SEM), energy dispersive spectrometry (EDS), glow discharge optical emission spectrometry (GDOES) and X-ray diffraction (XRD). The oxide layer formed on the oxidized specimen pre-treated with FPP was thicker than that on the oxidizedonly specimen, because the microstructure induced by FPP facilitated the diffusion of oxygen and aluminum elements during the oxidation process. As results of reciprocating sliding wear tests, width of wear track on the oxidized specimen pre-treated with FPP was shallower compared to the oxidized-only specimen. Moreover, the oxide layer formed at the oxidized-only surface was delaminated during tests, otherwise there was no delamination at the oxidized surface pre-treated with FPP. This was because the surface oxide layer exhibited good interface adherence due to the existence of a thick oxygen solid solution layer. These results indicate that the modified layer created by the combination process of FPP and atmospheric oxidation is effective to improve the wear resistance of titanium alloys.

本文言語English
ページ(範囲)114-120
ページ数7
ジャーナルNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
80
2
DOI
出版ステータスPublished - 2016

ASJC Scopus subject areas

  • 凝縮系物理学
  • 材料力学
  • 金属および合金
  • 材料化学

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