Li Guolu
Hebei University of Technology
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Publication
Featured researches published by Li Guolu.
Journal of Materials Engineering and Performance | 2018
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
Zhu Lina; Wang Chengbiao; Wang Haidou; Xu Binshi; Zhuang Daming; Liu Jiajun; Li Guolu
Tribology International | 2012
Zhang Zhi-qiang; Li Guolu; Wang Haidou; Xu Binshi; Piao Zhongyu; Zhu Lina
Applied Surface Science | 2012
Zhu Lina; Wang Chengbiao; Wang Haidou; Xu Binshi; Zhuang Daming; Liu Jiajun; Li Guolu
Archive | 2011
Piao Zifeng; Liu Jinhai; Li Guolu; Xu Xianyi; Lin Jingsan
Tribology International | 2013
Li Guolu; Zhang Zhi-qiang; Wang Haidou; Xu Binshi; Piao Zhongyu; Zhu Lina
Archive | 2014
Liu Jinhai; Zhao Xuebo; Li Guolu; Dong Tianshun; Zhang Jianjun; Hao Xiaoyan
Journal of Magnetism and Magnetic Materials | 2016
Li Chongchong; Dong Lihong; Wang Haidou; Li Guolu; Xu Binshi
Archive | 2015
Liu Jinhai; Zhao Xuebo; Li Guolu; Hao Xiaoyan; Dong Tianshun; Zhang Jianjun
Archive | 2012
Wang Haidou; Xing Zhiguo; Xu Binshi; Lu Xiaoliang; Li Guolu; Zhu Lina; Ma Guozheng