A study on the microstructures and three–body abrasive wear behaviors of Fe–B alloy under different Fe2B boride orientation
Abstract
Purpose
The directional solidification Fe-B alloy was prepared. The microstructures and three-body abrasive wear behaviors of directional solidification alloy were investigated.
Design/methodology/approach
Fe-B alloy was melted in medium frequency induction furnace. The hardness was measured on HRS-150 Rockwell-hardness tester and HXD-1000TMC tester. The wear characteristic of the alloy was examined with a block-on-ring geometry. The worn surface of the alloy was investigated by scanning electron microscopy and laser scanning microscopy.
Findings
The wear weight loss and worn surface roughness increase with the increasing contact load in wear tests. When the worn surface is perpendicular to the boride growth direction, the highest hardness plane of the boride can resist abrasive effectively under the surrounding and supporting of the martensite matrix.
Originality/value
The relation between boride growth direction and wear direction will cause different boride breaking tendency and wear weight loss.
Keywords
Acknowledgements
This work was supported by National Natural Science Foundation of China (51705414 and 51641105), Project Supported by the Open Research Subject of Key Laboratory of Laboratory of Special Materials and Manufacturing Technology in Sichuan Provincial Universities (szjj2016-089), the Projects supported by Huozhou Coal Electricity Group Co., Ltd. of China (HZMDJSHT20007), International S&T Cooperation Projects of China (2015DFR50990), and International S&T Cooperation Projects of Qinghai Province (2014HZ819 and 2015HZ811).
Citation
Yi, D., Zhang, Z., Chen, J., Niu, L. and Peng, J. (2017), "A study on the microstructures and three–body abrasive wear behaviors of Fe–B alloy under different Fe2B boride orientation", Industrial Lubrication and Tribology, Vol. 69 No. 5, pp. 782-787. https://doi.org/10.1108/ILT-02-2016-0029
Publisher
:Emerald Publishing Limited
Copyright © 2017, Emerald Publishing Limited