In-situ synthesis of TiC-Al2O3 coating on copper surface

Fang Yang, Qian Qin, Tao Shi, Xin Lu, Cunguang Chen, Zhimeng Guo, Alex A. Volinsky

研究成果: Article査読

2 被引用数 (Scopus)

抄録

In-situ TiC-Al2O3 strengthening coating was applied on copper, using the vacuum-expendable pattern casting (VEPC) in combination with the self-propagating high-temperature synthesis (SHS) technology. Due to the high heat consumption, highly exothermic CuO-Al (CA) reaction was employed to guarantee 100% completion of the Ti–C reaction. Consequently, TiC- Al2O3 coating was obtained after the ignition of Ti-C-CuO-Al SHS system by molten copper. Here, the optimal CA content was 10 wt%. During the casting process, molten copper infiltrated into the SHS coating, resulting in the achievement of dense coating microstructure. The hardness and wear resistance were also significantly improved. The hardness value of copper matrix was only 40 HB, while that of the composite coating was up to 195 HB. The mass loss reduced from 7.98 g to 0.44 g at 40 N load. Besides, metallurgical bonding was obtained with an ideal bond strength of 293 MPa.

本文言語English
ページ(範囲)65-74
ページ数10
ジャーナルSurface and Coatings Technology
373
DOI
出版ステータスPublished - 2019 9 15
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 凝縮系物理学
  • 表面および界面
  • 表面、皮膜および薄膜
  • 材料化学

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