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Featured researches published by Jie Ning.


Materials | 2018

Influence of Beam Offset on Dissimilar Laser Welding of Molybdenum to Titanium

Lin-Jie Zhang; Guang-Feng Lu; Jie Ning; Liangliang Zhang; Jian Long; Guifeng Zhang

Dissimilar joining of molybdenum (Mo) to titanium (Ti) is of great significance to the design and fabrication of high-temperature facilities. However, few reports were found about fusion joining of these two metals. The objective of this paper is to assess the feasibility of laser beam welding (LBW) of 2 mm-thick molybdenum and titanium. The effects of laser beam offset on the laser dissimilar joint of pure molybdenum to pure titanium were analyzed in terms of microstructure, chemical composition, microhardness, and tensile behavior. The results showed that the weld appearance improved with the increase of the offset. The fusion zone was strengthened because of the solid solution of these two elements. The mechanical properties of samples increased firstly and then decreased with the increasing of offset. When the laser beam irradiated on the titanium plate and the center of the laser spot was 0.5 mm away from the Mo/Ti interface, the joint performed the highest tensile strength, which was about 70% that of titanium base metal. LBW was demonstrated to be a promising method to join dissimilar Mo/Ti joint.


Materials & Design | 2016

A comparative study on the microstructure and properties of copper joint between MIG welding and laser-MIG hybrid welding

Lin-Jie Zhang; Qing-Lin Bai; Jie Ning; An Wang; Jian-Nan Yang; Xian-Qing Yin; Jianxun Zhang


Materials & Design | 2015

Single pass hybrid laser–MIG welding of 4-mm thick copper without preheating

Lin-Jie Zhang; Jie Ning; Xing-Jun Zhang; Guifeng Zhang; Jianxun Zhang


Materials & Design | 2015

Microstructure and properties of the laser butt welded 1.5-mm thick T2 copper joint achieved at high welding speed

Lin-Jie Zhang; Guifeng Zhang; Jie Ning; Xing-Jun Zhang; Jianxun Zhang


Materials & Design | 2017

Comparison of the microstructure and mechanical performance of 2A97 Al-Li alloy joints between autogenous and non-autogenous laser welding

Jie Ning; Lin-Jie Zhang; Qing-Lin Bai; Xian-Qing Yin; Jing Niu; Jianxun Zhang


Journal of Alloys and Compounds | 2017

Microstructure and property inhomogeneity investigations of bonded Zr/Ti/steel trimetallic sheet fabricated by explosive welding

Jie Ning; Lin-Jie Zhang; Miao-Xia Xie; Han-Xin Yang; Xian-Qing Yin; Jianxun Zhang


Journal of Materials Processing Technology | 2016

Effects of double-pass welding and extrusion on properties of fiber laser welded 1.5-mm thick T2 copper joints

Jie Ning; Lin-Jie Zhang; An Wang; Qing-Lin Bai; Jian-Nan Yang; Jianxun Zhang


Journal of Alloys and Compounds | 2017

Narrow gap multi-pass laser butt welding of explosion welded CP-Ti/Q235B bimetallic sheet by using a copper interlayer

Jie Ning; Lin-Jie Zhang; Gui-chuan Jiang; Miao-Xia Xie; Xian-Qing Yin; Jianxun Zhang


The International Journal of Advanced Manufacturing Technology | 2017

Numerical study of the effect of laser-arc distance on laser energy coupling in pulsed Nd: YAG laser/TIG hybrid welding

Jie Ning; Lin-Jie Zhang; Suck-Joo Na; Xian-Qing Yin; Jing Niu; Jianxun Zhang; Huanran Wang


The International Journal of Advanced Manufacturing Technology | 2015

Modulated fiber laser welding of high reflective AZ31

Lin-Jie Zhang; Xing-Jun Zhang; Jie Ning; Jianxun Zhang

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Lin-Jie Zhang

Xi'an Jiaotong University

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Jianxun Zhang

Xi'an Jiaotong University

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Xian-Qing Yin

Xi'an Jiaotong University

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Qing-Lin Bai

Xi'an Jiaotong University

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Jian-Nan Yang

Xi'an Jiaotong University

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Guang-Feng Lu

Xi'an Jiaotong University

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Guifeng Zhang

Xi'an Jiaotong University

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Xing-Jun Zhang

Xi'an Jiaotong University

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Jing Niu

Xi'an Jiaotong University

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An Wang

Xi'an Jiaotong University

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