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Featured researches published by Chunfa Dong.


Journal of Wuhan University of Technology-materials Science Edition | 2018

Effective microstructure unit in control of impact toughness in CGHAZ for high strength bridge steel

Xiuzhi Yang; Lichao Zhang; Yusheng Shi; Shengfu Yu; Chunfa Dong; Wenlin Hua; Xuan Li

The high strength bridge steel was processed with the simulated coarse grain heat affected zone (CGHAZ) thermal cycle with heat input varying from 30 to 60 kJ/cm, the microstructures were investigated by means of optical microscope (OM), scanning electron microscope (SEM), electron backscattering diffraction (EBSD) and transmission electron microscope (TEM), and the impact properties were evaluated from the welding thermal cycle treated samples. The results indicate that the microstructure is primarily composed of lath bainite. With decreasing heat input, both bainite packet and block are significantly refined, and the toughness has an increasing tendency due to the grain refinement. The fracture surfaces all present cleavage or fracture for the samples with different heat inputs. Moreover, the average cleavage facet size for the CGHAZ is nearly equal to the average bainite packet size and the bainitic packet boundary can strongly impede the crack propagation, indicating that the bainitic packet is the most effective unit in control of impact toughness in the simulated CGHAZ of high strength bridge steel.


Journal of Alloys and Compounds | 2014

Green synthesis of monodisperse silver nanoparticles using hydroxy propyl methyl cellulose

Chunfa Dong; Xianglin Zhang; Hao Cai


Physica E-low-dimensional Systems & Nanostructures | 2014

Synthesis and characterization of monodisperse copper nanoparticles using gum acacia

Chunfa Dong; Hao Cai; Xianglin Zhang; Chuanliang Cao


Journal of Molecular Liquids | 2014

Facile and one-step synthesis of monodisperse silver nanoparticles using gum acacia in aqueous solution

Chunfa Dong; Xianglin Zhang; Hao Cai; Chuanliang Cao


Ceramics International | 2015

Preparation and characterization of nanosilver-doped porous hydroxyapatite scaffolds

Kui Zhou; Chunfa Dong; Xianglin Zhang; Lei Shi; Zhichao Chen; Yanlin Xu; Hao Cai


Optik | 2017

Wolfberry fruit (Lycium barbarum) extract mediated novel route for the green synthesis of silver nanoparticles

Chunfa Dong; Chuanliang Cao; Xianglin Zhang; Yanlong Zhan; Xiangjie Wang; Xiuzhi Yang; Kui Zhou; Xinhua Xiao; Bin Yuan


Optik | 2016

Green synthesis of biocompatible silver nanoparticles mediated by Osmanthus fragrans extract in aqueous solution

Chunfa Dong; Xianglin Zhang; Hao Cai; Chuanliang Cao


Materials Letters | 2014

Semen cassiae extract mediated novel route for the preparation of silver nanoparticles

Chunfa Dong; Kui Zhou; Xianglin Zhang; Hao Cai; Guangrong Xiong; Chuanliang Cao; Zhichao Chen


Materials Chemistry and Physics | 2013

Composite inks of poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate)/silver nanoparticles and electric/optical properties of inkjet-printed thin films

Zhaoting Xiong; Chunfa Dong; Hao Cai; Changqing Liu; Xianglin Zhang


Optik | 2017

Green synthesis and characterization of monodisperse gold nanoparticles using Ginkgo Biloba leaf extract

Jili Zha; Chunfa Dong; Xiangjie Wang; Xianglin Zhang; Xinhua Xiao; Xiuzhi Yang

Collaboration


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Xianglin Zhang

Huazhong University of Science and Technology

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Hao Cai

Huazhong University of Science and Technology

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Kui Zhou

Huazhong University of Science and Technology

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Xiuzhi Yang

Huazhong University of Science and Technology

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Zhichao Chen

Huazhong University of Science and Technology

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Jili Zha

Chongqing University

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Lei Shi

Huazhong University of Science and Technology

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Lichao Zhang

Huazhong University of Science and Technology

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Shengfu Yu

Huazhong University of Science and Technology

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