Microstructural characteristics of Alloy 690TT subjected to fretting corrosion in high temperature water

Long Xin, Beibei Yang, Jie Li, Yonghao Lu, Tetsuo Shoji

研究成果: Article査読

26 被引用数 (Scopus)

抄録

Microstructural characteristics of Alloy 690TT subjected to fretting corrosion in high temperature water were investigated. The results indicated that there were oxide, tribologically transformed structure (TTS) and deformation layers in worn subsurface. Oxide layer had a multilayered structure: the outer part consisted of Fe-rich spinel oxides and tribolayer which was composed of Fe3O4 and Cr2O3; the inner part contained local amorphous Cr-rich oxides. TTS layer consisted of equiaxed nanograins which formed due to dynamic recrystallization of deformed structure. Internal oxidation occurred within TTS layer because the nanograins provided the short-circuits for oxygen diffusion, resulting in the ellipsoid and stripe-like Cr2O3.

本文言語English
ページ(範囲)116-128
ページ数13
ジャーナルCorrosion Science
123
DOI
出版ステータスPublished - 2017 7月 15

ASJC Scopus subject areas

  • 化学 (全般)
  • 化学工学(全般)
  • 材料科学(全般)

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