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Numerical simulation of vertical extrusion process of large-sized seamless steel tube with thick wall Jian Zhang 1,2,a,Xiaolan Wang1,b,Jianhua Song1,c,Xueqin Jin1 Zhihua Wang1,3 1 School of Materials Science & Engineering, Tianjin University of Technology, Tianjin 300384, China 2 Key Laboratory of Display Materials & Photoelectric Devices (Tianjin University of Technology), Ministry of Education, Tianjin 300384, China 3Tianjin Key Lab for Photoelectric Materials & Devices, Tianjin 300384, China azhang_jian_99999@126.com, bxiaolanjx@163.com, csongjianhua20054500@126.com Keywords: thick wall seamless steel; vertical extrusion; numerical simulation Abstract: The software of finite element simulation DEFORM-3D was used to simulate the extrusion process of the large diameter thick wall seamless steel tube, and the effective stress and load curves were analyzed in the situation of different concave die mould cone Angles.
Acknowledgements This work was supported by the National Natural Science Foundation of China under Grant No. 2009ZX04014-063-03 and Tianjin Key Subject for Materials Physics and Chemistry References [1] Qingbo Li, Haitao Zhou, Zhichao Liu.
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Chongqing: Material science and engineering college of Chongqing university. 2006
Pipe open-die cold extrusion process of numerical simulation based on DEFORM-3D.Hebei university of technology journal Vol. 32(2010), p.25-27.

However, these materials and their welded joints are easy to produce ductility dip cracking (DDC) which seriously threatens the safety of equipment in service.
Materials Science and Engineering A, 380, PP: 245-258, 2004. https://doi.org/10.1016/j.msea.2004.03.075 [4] Noecker F F, DuPont J N.
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An investigation of ductility dip cracking in nickel-based filler materials-Part I.

The Structure and Electrochemical Properties of BDD Deposited on Ti Substrate by MWCVD Feng Liu 1,a, Wenjun Wang 2,b, Juntao Wang 1,c, Liwei Xiong 2,d, Yonglei Xin 1,e, Xiangbo Li 1, f 1 Science and Technology on Marine Corrosion and Protection Laboratory, Luoyang Ship Material Research Institute，Qingdao 266101, P.R.China 2 Provincial Key Laboratory of Plasma Chemistry & Advanced Materials, Wuhan Institute of Technology, Wuhan, 430073, P.R.China aliuf@sunrui.net, balicejoe@163.com, cwangjt@sunrui.net, dzhily2000@126.com ,exinyl@sunrui.net,flixb@sunrui.net Keywords: MWCVD; BDD Electrode; Electrochemical Oxidation Abstract.
Ti is an attractive substrate material for the BDD film electrodes due to the compromise between material cost, corrosion and mechanical stability[7].
The electrochemical oxidation of 2,4-dichlorophenol at BDD electrode is to evaluate the potential application of this electrode material for the electrochemical treatment of phenol – containing wastewater.
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The Weibull Distribution of Microhardness in Plasma Sprayed NiCrAl/AT13 Nanostructured Ceramic Coating Gaoxu Tan1, a, Tong Wang2, b and Enbing Bi3, c 1 School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, China 2 Schools of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, China 3 Schools of Materials Science and Engineering, ShangHai JiaoTong University atangaoxu_725@126.com, bwangtongfly.1987@163.com, cbienbing@163.com Keywords: Plasma spraying; nano ceramic coating; microstructure; microhardness; Weibull distribution.
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Polymers belong to most spread organic flammable materials.
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Over the last decade, there has been increasing research interest in the value of biosourced materials from lignocellulosic biomass.
The world production of ethanol is about 60% from raw materials from sugar crops [8].
It is difficult for high concentrations and productions of ethanol from lignocellulosic materials because the plant cell wall has a complex structure [12].
Mikkola: Dissolution of lignocellulosic materials and its constituents using ionic liquids-a review.  
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The development of dry self-lubricating materials is directly linked to the rising requirements of performance.
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The strength response of rings materials under high strain rate deformation was described by using the well-known Johnson–Cook constitutive relationship.
Introduction An electromagnetic expanding ring technique is one of the methods for determining mechanical properties of materials under high-strain-rate loading conditions [1].
This work was supported by the Ministry of Science and Higher Education, Poland (Grant No. 0025/R/T/00/2009/09).
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