Skip to main content
placeholder image

Effects of Ni and Cr on Cryogenic Impact Toughness of Bainite/Martensite Multiphase Steels

Journal Article


Download full-text (Open Access)

Abstract


  • In the present research, the effects of Nickel (Ni) and Chromium (Cr) on cryogenic impact toughness (CIT) of low-carbon bainite/martensite multiphase steels [processed by two different cooling processes: isothermal transformation process (ITP) and continuous cooling process (CCP)] were investigated. It was found that due to the formation of carbides during isothermal treatment, the addition of Ni and Cr yielded no significant improvements in CIT. However, during CCP treatment, the addition of Ni manifested a considerable enhancement in CIT, whereas the addition of both Ni and Cr caused a decrease in CIT. Further, after ITP treatment, the microstructure of all steels consisted of bainite and martenite, while Ni + Cr steel contained the largest amount of bainite. The microstructures of the CCP-treated steels mainly also consisted of bainite and martensite, but no retained austenite and carbides were observed, thus resulting in a superior CIT.

UOW Authors


  •   Yao, Zishan (external author)
  •   Xu, Guang (external author)
  •   Jiang, Zhengyi
  •   Tian, Junyu (external author)
  •   Yuan, Qing (external author)
  •   Ma, Hongwei (external author)

Publication Date


  • 2019

Citation


  • Yao, Z., Xu, G., Jiang, Z., Tian, J., Yuan, Q. & Ma, H. (2019). Effects of Ni and Cr on Cryogenic Impact Toughness of Bainite/Martensite Multiphase Steels. Metals and Materials International, 25 (5), 1151-1160.

Scopus Eid


  • 2-s2.0-85070934822

Ro Full-text Url


  • https://ro.uow.edu.au/cgi/viewcontent.cgi?article=4154&context=eispapers1

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/3135

Number Of Pages


  • 9

Start Page


  • 1151

End Page


  • 1160

Volume


  • 25

Issue


  • 5

Place Of Publication


  • Korea, Republic of

Abstract


  • In the present research, the effects of Nickel (Ni) and Chromium (Cr) on cryogenic impact toughness (CIT) of low-carbon bainite/martensite multiphase steels [processed by two different cooling processes: isothermal transformation process (ITP) and continuous cooling process (CCP)] were investigated. It was found that due to the formation of carbides during isothermal treatment, the addition of Ni and Cr yielded no significant improvements in CIT. However, during CCP treatment, the addition of Ni manifested a considerable enhancement in CIT, whereas the addition of both Ni and Cr caused a decrease in CIT. Further, after ITP treatment, the microstructure of all steels consisted of bainite and martenite, while Ni + Cr steel contained the largest amount of bainite. The microstructures of the CCP-treated steels mainly also consisted of bainite and martensite, but no retained austenite and carbides were observed, thus resulting in a superior CIT.

UOW Authors


  •   Yao, Zishan (external author)
  •   Xu, Guang (external author)
  •   Jiang, Zhengyi
  •   Tian, Junyu (external author)
  •   Yuan, Qing (external author)
  •   Ma, Hongwei (external author)

Publication Date


  • 2019

Citation


  • Yao, Z., Xu, G., Jiang, Z., Tian, J., Yuan, Q. & Ma, H. (2019). Effects of Ni and Cr on Cryogenic Impact Toughness of Bainite/Martensite Multiphase Steels. Metals and Materials International, 25 (5), 1151-1160.

Scopus Eid


  • 2-s2.0-85070934822

Ro Full-text Url


  • https://ro.uow.edu.au/cgi/viewcontent.cgi?article=4154&context=eispapers1

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/3135

Number Of Pages


  • 9

Start Page


  • 1151

End Page


  • 1160

Volume


  • 25

Issue


  • 5

Place Of Publication


  • Korea, Republic of