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Author:

Fu, H. G. (Fu, H. G..) (Scholars:符寒光) | Lei, Y. P. (Lei, Y. P..) (Scholars:雷永平) | Xing, J. D. (Xing, J. D..) | Huang, L. M. (Huang, L. M..)

Indexed by:

EI Scopus SCIE

Abstract:

The microstructures of B bearing cast steel ( B steel) containing 0 center dot 8 - 1 center dot 2 wt-% B, 0 center dot 8 - 1 center dot 2 wt-% Cr,1 center dot 0 - 1 center dot 5 wt-% Mn, 0 center dot 6 - 1 center dot 0 wt-% Si and 0 center dot 10 - 0 center dot 25 wt-% C have been characterised by means of optical microscopy, scanning electron microscopy, electron probe microanalyser and X- ray diffraction. The solidification structure of B steel consists of pearlite, ferrite, martensite and boride (Fe2B), while the hardness is 1430 - 1480 HV. Borides distribute along the grain boundary in the form of eutectic. Fine lath martensite and eutectic Fe2B can be obtained by water quenching at 1223-1273 K. The hardness and impact toughness of the B steel exceed 55 HRC and 150 kJ m(-2) respectively. The abrasion resistance determined using a pin abrasion tester is obviously higher than that of the martensitic cast steel and nears to the high chromium white cast iron.

Keyword:

solidification microstructure B bearing cast steel quenching Borides mechanical properties lath martensite

Author Community:

  • [ 1 ] [Fu, H. G.]Beijing Univ Technol, Res Inst Adv Mat Proc Technol, Sch Mat Sci & Engn, Beijing 100022, Peoples R China
  • [ 2 ] [Lei, Y. P.]Beijing Univ Technol, Res Inst Adv Mat Proc Technol, Sch Mat Sci & Engn, Beijing 100022, Peoples R China
  • [ 3 ] [Xing, J. D.]Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Sch Mat Sci & Engn, Xian 710049, Peoples R China
  • [ 4 ] [Huang, L. M.]Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Sch Mat Sci & Engn, Xian 710049, Peoples R China

Reprint Author's Address:

  • 符寒光

    [Fu, H. G.]Beijing Univ Technol, Res Inst Adv Mat Proc Technol, Sch Mat Sci & Engn, Beijing 100022, Peoples R China

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Source :

IRONMAKING & STEELMAKING

ISSN: 0301-9233

Year: 2008

Issue: 5

Volume: 35

Page: 371-378

2 . 1 0 0

JCR@2022

ESI Discipline: MATERIALS SCIENCE;

JCR Journal Grade:3

Cited Count:

WoS CC Cited Count: 13

SCOPUS Cited Count: 22

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 6

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