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Influences of Load and Microstructure on Tribocorrosion Behaviour of High Strength Hull Steel in Saline Solution

Journal Article


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Abstract


  • The tribocorrosion behaviour of two diferent hull steels (namely, EH36 and EH47) was investigated using a ball-on-disk tribometer under varying normal loads from 10 to 100 N in a 3.5 wt% NaCl saline solution. Sliding in pure water was also performed for a comparison purpose. The results indicate that the corrosion products mainly consist of lath lepidocrocite (γ-FeOOH) with residual NaCl crystals when sliding against both steels EH36 and EH47 in the saline solution. Tribocorrosion on EH36 (pearlitic steel) shows lower coefcient of friction (COF) values than those obtained in water, while tribocorrosion on EH47 (bainitic steel) leads to higher COF values instead. The former is due to the formation of considerable hydroxide particulates and flms with small sizes. In contrast, the latter is ascribed to the ploughing of hydroxides with smaller amounts and bigger sizes. In particular, the synergistic efects of corrosion and wear in tribocorrosion result in much higher total materials degradation, compared to that obtained through pure mechanical wear in water.

UOW Authors


  •   Hui Wu
  •   Li, Yan (external author)
  •   Li, Zhou (external author)
  •   Cheng, Xiawei (external author)
  •   Hasan, Mahadi (external author)
  •   Zhang, Linda (external author)
  •   Jiang, Zhengyi (external author)

Publication Date


  • 2019

Citation


  • Wu, H., Li, Y., Li, Z., Cheng, X., Hasan, M., Zhang, H. & Jiang, Z. (2019). Influences of Load and Microstructure on Tribocorrosion Behaviour of High Strength Hull Steel in Saline Solution. Tribology Letters, 67 124-1-124-12.

Scopus Eid


  • 2-s2.0-85074291281

Ro Full-text Url


  • https://ro.uow.edu.au/cgi/viewcontent.cgi?article=4311&context=eispapers1

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/3289

Start Page


  • 124-1

End Page


  • 124-12

Volume


  • 67

Place Of Publication


  • United States

Abstract


  • The tribocorrosion behaviour of two diferent hull steels (namely, EH36 and EH47) was investigated using a ball-on-disk tribometer under varying normal loads from 10 to 100 N in a 3.5 wt% NaCl saline solution. Sliding in pure water was also performed for a comparison purpose. The results indicate that the corrosion products mainly consist of lath lepidocrocite (γ-FeOOH) with residual NaCl crystals when sliding against both steels EH36 and EH47 in the saline solution. Tribocorrosion on EH36 (pearlitic steel) shows lower coefcient of friction (COF) values than those obtained in water, while tribocorrosion on EH47 (bainitic steel) leads to higher COF values instead. The former is due to the formation of considerable hydroxide particulates and flms with small sizes. In contrast, the latter is ascribed to the ploughing of hydroxides with smaller amounts and bigger sizes. In particular, the synergistic efects of corrosion and wear in tribocorrosion result in much higher total materials degradation, compared to that obtained through pure mechanical wear in water.

UOW Authors


  •   Hui Wu
  •   Li, Yan (external author)
  •   Li, Zhou (external author)
  •   Cheng, Xiawei (external author)
  •   Hasan, Mahadi (external author)
  •   Zhang, Linda (external author)
  •   Jiang, Zhengyi (external author)

Publication Date


  • 2019

Citation


  • Wu, H., Li, Y., Li, Z., Cheng, X., Hasan, M., Zhang, H. & Jiang, Z. (2019). Influences of Load and Microstructure on Tribocorrosion Behaviour of High Strength Hull Steel in Saline Solution. Tribology Letters, 67 124-1-124-12.

Scopus Eid


  • 2-s2.0-85074291281

Ro Full-text Url


  • https://ro.uow.edu.au/cgi/viewcontent.cgi?article=4311&context=eispapers1

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/3289

Start Page


  • 124-1

End Page


  • 124-12

Volume


  • 67

Place Of Publication


  • United States