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Author:

Nan, Rong (Nan, Rong.) | Fu, Hanguang (Fu, Hanguang.) (Scholars:符寒光) | Yang, Penghui (Yang, Penghui.) | Lin, Jian (Lin, Jian.) | Guo, Xingye (Guo, Xingye.)

Indexed by:

EI Scopus SCIE

Abstract:

The influence of the austempering process on microstructure evolution, mechanical properties, wear resistance, and corrosion resistance of Cu-bearing carbidic austempered ductile iron (CADI) was investigated. The results show that with an increase in the austempering temperature, the amount of acicular ferrite decreases, the volume fraction and carbon content of retained austenite increase gradually, the hardness and tensile strength decrease, and the impact toughness and corrosion resistance increase. Wear tests show that as the austempering temperature increases, the wear resistance of Cu-bearing CADI is improved and decreases when the temperature exceeds 300 degrees C. Comparing to the conventional single-step austempering process, two-step austempering process (namely added pre-quenching at 260 degrees C) significantly improves the wear resistance of Cu-bearing CADI by more than 16% without compromising toughness.

Keyword:

two-step austempering process Cu-bearing CADI microstructure evolution wear resistance

Author Community:

  • [ 1 ] [Nan, Rong]Beijing Univ Technol, Key Lab Adv Funct Mat, Minist Educ, Sch Mat Sci & Engn, 100 Pingle Garden, Beijing 100124, Peoples R China
  • [ 2 ] [Fu, Hanguang]Beijing Univ Technol, Key Lab Adv Funct Mat, Minist Educ, Sch Mat Sci & Engn, 100 Pingle Garden, Beijing 100124, Peoples R China
  • [ 3 ] [Yang, Penghui]Beijing Univ Technol, Key Lab Adv Funct Mat, Minist Educ, Sch Mat Sci & Engn, 100 Pingle Garden, Beijing 100124, Peoples R China
  • [ 4 ] [Lin, Jian]Beijing Univ Technol, Key Lab Adv Funct Mat, Minist Educ, Sch Mat Sci & Engn, 100 Pingle Garden, Beijing 100124, Peoples R China
  • [ 5 ] [Guo, Xingye]Beijing Univ Technol, Key Lab Adv Funct Mat, Minist Educ, Sch Mat Sci & Engn, 100 Pingle Garden, Beijing 100124, Peoples R China

Reprint Author's Address:

  • 符寒光

    [Fu, Hanguang]Beijing Univ Technol, Key Lab Adv Funct Mat, Minist Educ, Sch Mat Sci & Engn, 100 Pingle Garden, Beijing 100124, Peoples R China

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Source :

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE

ISSN: 1059-9495

Year: 2020

Issue: 4

Volume: 29

Page: 2440-2459

2 . 3 0 0

JCR@2022

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:169

Cited Count:

WoS CC Cited Count: 7

SCOPUS Cited Count: 7

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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