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Dr. Xiaodong Wu
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Representative Publications
View All Publications1 January 2020 in Journal of Alloys and Compounds
Journal Article
YWYichang Wang
Yichang Wang
Lingfei CaoXWXiaodong Wu
Xiaodong WuXTXin Tong
Xin Tong
BLBin Liao
Bin Liao
ZWZhengan Wang
Zhengan Wang
+1
1 August 2019 in Journal of Alloys and Compounds
Journal Article
BLBin Liao
Bin Liao
XWXiaodong Wu
Xiaodong WuLingfei CaoGHGuangjie Huang
Guangjie Huang
ZWZhengan Wang
Zhengan Wang
QLQing Liu
Qing Liu
1 April 2019 in Materials Science and Engineering: A
Journal Article
QZQianqian Zhu
Qianqian Zhu
LCLingfei Cao
Lingfei Cao
XWXiaodong Wu
Xiaodong WuYZYan Zou
Yan ZouMCMalcolm J. Couper
Malcolm J. Couper
Journal Article
BLBin Liao
Bin LiaoLingfei CaoXWXiaodong Wu
Xiaodong WuYZYan Zou
Yan ZouGHGuangjie Huang
Guangjie HuangQLQing Liu
Qing Liu +2
The flow behavior and the microstructural evolution of aluminum alloy 7055 in two heat treatment conditions (homogenized vs. pre-rolled, solution treated, stretched and naturally aged (T3)) were investigated for a height reduction of 60% with deformation temperatures ranging from 370 °C to 450 °C and strain rates ranging from 0.01 s−1 to 10 s−1. Flow stress decline ratio maps as a function of deformation temperature and strain rate were produced along with processing maps at a strain of 0.8 to reveal optimum hot-working conditions for deformation at strain rates of 0.01 s−1 to 0.1 s−1. The results showed that the stress drop ratio during deformation is higher for the homogenized condition than for the pre-rolled, T3 condition. A higher degree of recrystallization after deformation was observed in the pre-rolled, T3 condition due to finer second phase particles, smaller grain size, and more numerous sub-grains. The mechanism for deformation softening is discussed in the context of grain boundary characteristics.
1 August 2020 in Materials Science and Engineering: A
Journal Article
SLShengdan Liu
Shengdan Liu
MZMenghan Zhang
Menghan Zhang
QLQun Li
Qun Li
QZQianqian Zhu
Qianqian Zhu
HSHui Song
Hui Song
MCMalcolm J. Couper
Malcolm J. Couper
+2
Journal Article
Lingfei CaoBLBin Liao
Bin LiaoXWXiaodong Wu
Xiaodong WuLCLi Chaoyang
Li ChaoyangGHGuangjie Huang
Guangjie HuangNCNanpu Cheng
Nanpu ChengThe flow behavior of an Al-Cu-Li-Mg-Ag alloy was studied by thermal simulation tests at deformation temperatures between 350 °C and 470 °C and strain rates between 0.01–10 s−1. The microstructures of the deformed materials were characterized by electron backscattered diffraction. Constitutive equations were developed after considering compensation for strains. The processing maps were established and the optimum processing window was identified. The experimental data and predicted values of flow stresses were in a good agreement with each other. The influence of deformation temperature and strain rates on the microstructure were discussed. The relationship between the recrystallization mechanism and the Zener–Hollomon parameter was investigated as well.
About Me
Dr. Xiaodong Wu serves as an associate professor within the School of Materials Science and Engineering at Chongqing University, China. He obtained his Ph.D. from Shanghai Jiao Tong University in 2000, thereafter working in the Department of Materials Testing and Physical Metallurgy at Leoben University in Austria, the Department of Materials Engineering at Monash University in Australia, and the Department of Physics at Ben-Gurion University in Israel. His affiliation with Chongqing University commenced in 2014. Dr. Wu's expertise lies in the comprehensive study of metal materials, with a focus on deformation, phase transformation, and microstructure characterization. His current research directions are the multi-dimensional and multi-scale characterization of high-strength aluminum alloys, finite element simulation of material processing processes, and heterogeneous aluminum alloy. He has been a reviewer for internationally renowned journals for a long time, such as the Journal of Materials Science, Journal of Alloys and Compounds, Materials Science and Engineering A, etc. He has published more than seventy academic papers in famous international academic journals and holds two invention patents.