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Featured researches published by Li Guolu.


Journal of Materials Engineering and Performance | 2018

Microstructure and Wear Resistance of FeCrBSi Plasma-Sprayed Coating Remelted by Gas Tungsten Arc Welding Process

Dong Tianshun; Zheng Xiao-dong; Li Yalong; Li Guolu; Zhou Xiukai; Wang Haidou

Herein, an FeCrBSi coating was fabricated via plasma spray on AISI1045 steel, and subsequently, a gas tungsten arc welding (GTA) process was employed to remelt the coating. The microstructure, microhardness, fracture toughness and surface roughness of the coating before and after remelting were investigated, as well as the wear resistance was tested by a UMT-3-type sliding wear apparatus. The results showed that, upon remelting, most defects in the as-sprayed coating were effectively eliminated, the surface roughness decreased by 43%, and the coating–substrate interface bonding changed from mechanical to metallurgical. The phase composition of the as-sprayed coating was primarily α-Fe and a small amount of hard Fe3B phase, while the remelted coating consisted of α-Fe and (Fe,Cr)23C6 and a small quantity of CrB. In addition, remelting the coating was found to induce a 287.6% increase in the fracture toughness, a 33.4% increase in the average microhardness, and a 47.5% decrease in the wear volume, while the failure mechanism changed from abrasive wear to fatigue wear upon remelting. Therefore, GTA remelting of plasma-sprayed coating was found to be a feasible method to obtain a coating with good wear resistance.


Vacuum | 2010

Tribological properties of WS2 composite film prepared by a two-step method

Zhu Lina; Wang Chengbiao; Wang Haidou; Xu Binshi; Zhuang Daming; Liu Jiajun; Li Guolu


Tribology International | 2012

Investigation of rolling contact fatigue damage process of the coating by acoustics emission and vibration signals

Zhang Zhi-qiang; Li Guolu; Wang Haidou; Xu Binshi; Piao Zhongyu; Zhu Lina


Applied Surface Science | 2012

Microstructure and tribological properties of WS2/MoS2 multilayer films

Zhu Lina; Wang Chengbiao; Wang Haidou; Xu Binshi; Zhuang Daming; Liu Jiajun; Li Guolu


Archive | 2011

Manufacture method of slip sheet of air conditioner compressor

Piao Zifeng; Liu Jinhai; Li Guolu; Xu Xianyi; Lin Jingsan


Tribology International | 2013

Acoustic emission monitoring and failure mechanism analysis of rolling contact fatigue for Fe-based alloy coating

Li Guolu; Zhang Zhi-qiang; Wang Haidou; Xu Binshi; Piao Zhongyu; Zhu Lina


Archive | 2014

Ausferrite ductile cast iron grinding ball

Liu Jinhai; Zhao Xuebo; Li Guolu; Dong Tianshun; Zhang Jianjun; Hao Xiaoyan


Journal of Magnetism and Magnetic Materials | 2016

Metal magnetic memory technique used to predict the fatigue crack propagation behavior of 0.45%C steel

Li Chongchong; Dong Lihong; Wang Haidou; Li Guolu; Xu Binshi


Archive | 2015

Manufacturing method of wear-resisting elbow of concrete pump truck cantilever

Liu Jinhai; Zhao Xuebo; Li Guolu; Hao Xiaoyan; Dong Tianshun; Zhang Jianjun


Archive | 2012

Preparation method for PbZr0.52Ti0.48O3 intelligent coating and PbZr0.52Ti0.48O3 intelligent coating

Wang Haidou; Xing Zhiguo; Xu Binshi; Lu Xiaoliang; Li Guolu; Zhu Lina; Ma Guozheng

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Dong Tianshun

Hebei University of Technology

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Liu Jinhai

Hebei University of Technology

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Xu Binshi

Warsaw University of Technology

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Fu Binguo

Hebei University of Technology

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Kang Jiajie

China University of Geosciences

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Li Yalong

Hebei University of Technology

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Zhang Jianjun

Hebei University of Technology

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Zhu Lina

China University of Geosciences

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Zheng Xiao-dong

Hebei University of Technology

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