Paper Title:
A Study on the Structures and Properties of B-Bearing Cast Steel for Wear Resistance
  Abstract

The microstructures of B-bearing cast steel containing 0.8-1.2 wt.%B, 0.8-1.2 wt.%Cr, 1.0-1.5 wt.%Mn, 0.6-1.0 wt.%Si and 0.10-0.25 wt.%C have been characterized by means of optical OM, SEM, EPMA and XRD. 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 K-1273 K. The hardness and impact toughness of the B-steel exceed 55 HRC and 150 kJ/m2, 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.

  Info
Periodical
Edited by
Shengyi Li, Yingchun Liu, Rongbo Zhu, Hongguang Li, Wensi Ding
Pages
878-882
DOI
10.4028/www.scientific.net/AMM.34-35.878
Citation
Z. Q. Jiang, X. L. Feng, X. Z. Feng, "A Study on the Structures and Properties of B-Bearing Cast Steel for Wear Resistance", Applied Mechanics and Materials, Vols. 34-35, pp. 878-882, 2010
Online since
October 2010
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