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Featured researches published by Dong Tianshun.


Rare Metal Materials and Engineering | 2008

Influence of Rapid Solidification of Cu-P Intermediate Alloy on Wear Resistance of Al-Si alloy

Dong Tianshun; Cui Chunxiang; Liu Shuangjin; Yang Lijun; Sun Jibing

Abstract The influence of rapid solidification of Cu-P intermediate alloy on the wear resistance of Al-Si alloy is studied. TEM analysis indicates that at the cooling speed of 105-106 °C/s, the microstructure of melt-spin Cu-P ribbon consists of nano-grains and a little amount of amorphous areas, and the grain size of Cu3P in Cu-P intermediate alloy is decreased from 5-40 μm to 30-50 nm. Results show that the wear resistance of Al-Si alloy modified by melt-spin intermediate alloy are better than that of Al-Si alloy modified by massive ones; wear rate is decreased from 0.86% to 0.39%. Therefore, melt-spin treatment of Cu-P intermediate alloy is effective to improve the wear resistance of Al-Si alloy.


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.


Archive | 2014

Ausferrite ductile cast iron grinding ball

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


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


Surface & Coatings Technology | 2018

Microstructure evolution and properties of NiCrBSi thick coating remelted by gas tungsten arc

Li Yalong; Dong Tianshun; Li Guolu; Wang Haidou; Fu Binguo; Zheng Xiao-dong


Materials Research Express | 2018

Microstructure and corrosive wear resistance of plasma sprayed Ni-based coatings after TIG remelting

Dong Tianshun; Zhou Xiukai; Li Guolu; Liu Li; Wang Ran


Journal of Thermal Spray Technology | 2016

Acoustic Emission Investigation of Rolling/Sliding Contact Fatigue Failure of NiCr–Cr3C2 Coating

Li Guolu; Xu Zhonglin; Dong Tianshun; Wang Haidou; Liu Jinhai; Kang Jiajie


Transactions of the China Welding Institution | 2007

Extraction of diagnostic information of expulsion defect in resistance spot welding process by wavelet analysis method

Dong Tianshun


Vacuum | 2018

Microstructure and mechanical property of Ni-based thick coating remelted by gas tungsten arc

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


Vacuum | 2018

Microstructure and interface characteristics of NiCrBSi thick coating remelted by TIG process

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

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Li Guolu

Hebei University of Technology

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Liu Jinhai

Hebei University of Technology

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Fu Binguo

Hebei University of Technology

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Li Yalong

Hebei University of Technology

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Zheng Xiao-dong

Hebei University of Technology

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Zhou Xiukai

Hebei University of Technology

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Zhang Jianjun

Hebei University of Technology

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Kang Jiajie

China University of Geosciences

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Cui Chunxiang

Hebei University of Technology

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