Research on Microstructure and Properties of Bimetal Composite Layer Between LAS and HCCI

DOI

10.2991/icmea-17.2018.4How to use a DOI?

Keywords

two liquid casting; wear-resisting plate; composite layer; dendritic austenite

Abstract

Based on the casting technique analysis on the temperature field and the velocity field for the low alloy steel, low alloy steel(LAS)/ high chromium white cast iron(HCCI) bimetal wear steel plate was prepared by two liquid bimetal composite casting process. The microstructure of interface layer of wear-resisting plate was studied. A clear and distinguishable composite layer between the LAS and the HCCI was detected with the SEM. The composite layer from the LAS to the HCCI can be divided into pearlite transition layer, composite layer and HCCI transition layer. The Vickers hardness from the LAS layer to the HCCI layer was 360HV to 960HV. There are some granular carbides in the longitudinal growth dendritic austenite of the HCCI transition layer. According to the principle of the solute redistribution at the solid-liquid interface, the morphology of the original austenite presented the distinct directional fir-tree crystal growth in accordance with planar, cellular and dendritic.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Wenbing Zhang
AU  - Shumei Chen
AU  - Hui Gao
AU  - Yongchang Zhu
PY  - 2018/02
DA  - 2018/02
TI  - Research on Microstructure and Properties of Bimetal Composite Layer Between LAS and HCCI
BT  - Proceedings of the 4th Annual International Conference on Material Engineering and Application (ICMEA 2017)
PB  - Atlantis Press
SP  - 13
EP  - 16
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmea-17.2018.4
DO  - 10.2991/icmea-17.2018.4
ID  - Zhang2018/02
ER  -