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Dynamic Recrystallization Microstructure Grain Size Prediction of 7075 Aluminum Alloy Piston Prepared by Isothermal Extrusion Yue Wua, Wenlin Chenb, Yan Gaoc, Rui Zhoud School of Material Science and Engineering, Hefei University of Technology, Hefei 230009, China aanhuiwuyuegongda@163.com, bchenwl@hfut.edu.cn, c1204691653@qq.com, dzhouruisd@126.com Keywords: Piston; Isothermal extrusion; 7075 aluminum alloy; Microstructure grain size prediction Abstract.
Acknowledgement This work was financially supported by the ministry of science and technology major projects of China (311025).
Study on dynamic recrystallization kinetics model and effect of oxide inclusion in 1235 aluminum alloy[J].Transactions of materials and heat treatment, 2012, 33(2): 149-154
Materials Science Forum, 2010, 650: 295-301
International Journal of Machine Tools & Manufacture, 2005, 45: 1188-1194.

Organic/Inorganic Self-Assembled film based on a Perylenetetracarboxylic Diimide Derivative/CdS Dapan Li1,a, Yingzi Wang2,b, Yanli Chen*1,c 1Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China 2School of Materials Science and Engineering, University of Jinan, Jinan 250022, China a panzi0903@gmail.com, b mse_wangyz@ujn.edu.cn, c chm_chenyl@ujn.edu.cn Keywords: THPDI, CdS, Organic/Inorganic, Self-assembled film Abstract.
Introduction Organic-inorganic nanocomposite material has been widely recognized as one of the most promising and rapidly emerging research areas for advanced materials with desirable optical, electrical and magnetic properties.
Because of their great potential application as organic semiconductors in different molecular electronic devices, the fabrication of ordered thin solid films of this functional molecular material has become an attracting research area.
Financial support from the Natural Science Foundation of China (grant NO. 20871055), Natural Science Foundation of Shandong Province (No.
Tschierske: Chemistry - A European Journal Vol. 7 (2001), p. 2245 [2] M.

In this study, the behaviour of surface roughness near crack tips during cold rolling was investigated on low carbon steel material.
The other material parameters were according to reference [10].
Acknowledgements This research is supported by Australian Research Council (ARC) and National Natural Science Foundation of China (50874028 and 51074051).
Lee, Journal of Manufacturing Science and Engineering Vol. 123(2001), p. 279
Roters, Computational Materials Science Vol. 34(2005), p. 221

Raw material of the experiment Hydraulic cementing materials are called the ordinary Portland cement, which are fine grinding made from Portland cement clinker ,hybrid materials which are occupied 6%-15% and moderate gypsum .
Crush index and loading test are did in Southwest University of Science and Technology structure lab.
Acknowledgements This work was financially supported by Fund about Natural Science Projects(2009AA032304).
(New Building Materials.2000(3):6-8
(Journal of North China Institute of Water Conservancy and Hydroelectric Power,1998.6: 30-32.)

Preparation and Characterization of Chemical Bath Deposited CdS Thin Films for Solar Cells Zhenhai Xie1, a, Jiankang Li2, b 1Jiangsu Key Laboratory for Environment Functional Materials, Suzhou University of Science and Technology, Suzhou 215009, China 2Schools of Mathematics and Physics, Suzhou University of Science and Technology, Suzhou 215009, China a404965574@qq.com, bjk-li3725@163.com Keywords: CdS, Thin film, Chemical bath deposition.
Chemistry of Materials 14 (2002) 1773-1777
Chemistry of Materials 20 (2008) 6784-6791
Journal of Materials Science 32 (1997) 4837-4840
Solar Energy Materials and Solar Cells 93 (2009) 583-587

Temperature Prediction of Seven-pass Finishing Rolling of Hot Thin Strips by FEM Zhou-De QU 1,a ,Qun Zhang 2,b,Shi-Hong ZHANG3,c ,Chen Lei3,d 1 Institute of Materials and Engineering, Taiyuan Science and Technolgy University, Taiyuan, China, 030024 2 Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China 110016 3 Tianjin FAW Xia Li Automotive Co.
The material used in this paper is a low carbon steel strip with the chemical compositions shown in Table 1. the constitutive relations is input by the material data table on the basis of Gleeble experiments.
As shown in Fig. 1, the model is composed of the rolled materials, the roller, the pusher and a symmetrical plane, which is calculated by commercial code MSC.SUPERFORM.
Acknowledgements We would like to thank the National High Technology Research and Development Program of China (863 Program) and the Project sponsored by Taiyuan University of Science and Technology for PH.D for providing financial support for this work (No.2001AA339030) References [1] F.Hollander: J.
Fattahi: Journal of Materials Processing Technology 128(2002), p. 88-99 [8] S Serajzadeh, A Karimi Taheri and F Mucciardi.

Investigation on high-phosphorus electroless Ni–P plating technology of stainless steel Xiaojuan Wu 1,2,a, Zhengjun Liu 1,b and Guode Li 3,c 1 School of Material Science and Engineering, Shenyang University of Technology, Shenyang Liaoning, 110023, China 2 School of Material Science and Engineering, Shenyang Ligong University, Shenyang Liaoning, 110168, China 3 Experimental Center, Shenyang Normal University, Shenyang Liaoning, 110034, China as119@sohu.com, bliuzhengjun1962@163.com, cliguode@sina.com Keywords: orthogonal test, stainless steel, Ni–P Abstract.
[3] Long Hao, Quanfen Feng: Materials Protection, Vol. 41(2008), p. 25
[5] Yan Gao, Zhijun Zheng, Min Zhu: Materials Protection, Vol. 38(2005), p. 35
[6]Kaishu Guan, Anbo Liang, Baojun Lv: Materials for Mechanical Engineering, Vol. 24(2000), p. 20
Stephen: Materials Chemistry and Physics, Vol. 99(2006), p. 117

[9] Takahashi S, Yoshida S, Sasaki T, Hughes T, “Dynamic ESPI Evaluation of Deformation and Fracture Mechanism of 7075 Aluminum Alloy”, Materials 14(2021), 1530
[11] Ranc N, Du W, Ranc I, Wagner D, “Experimental studies of Portevin-Le Chatelier plastic instabilities in carbon-manganese steels by infrared pyrometry”, Materials Science and Engineering: A 663(2016),166-173
[12] Louche H, Chrysochoos A, “Thermal and dissipative effects accompanying Lüders band propagation”, Materials Science and Engineering: A 307(2001), 15-22
[13] Zheng Q, Mashiwa N, Furushima T, “Evaluation of large plastic deformation for metals by a non-contacting technique using digital image correlation with laser speckles”, Materials & Design 191(2020),108626
[14] Yuzbekova D, Mogucheva A, Borisova Y, Kaibyshev R, “On the mechanisms of nucleation and subsequent development of the PLC bands in an AlMg alloy”, Journal of Alloys and Compounds 868(2021),159135

This information is essential e.g. for application of these materials in the mechanically loaded application, where a design with certain reliability to operating conditions is required.
Introduction Ceramic foams with open cell porosity are becoming increasingly attractive materials in a great number of industrial branches and/or as bone replacement materials.
The main drawback of these materials is their intrinsic brittleness, which also limit their wider application e.g. in the load-bearing applications.
Acknowledgements A financial support of the Czech Science foundation under the project no. 17-08447Y is gratefully acknowledged.
Kraynik: Journal of Applied Mechanics Vol. 64 (1997), p. 787-794 [2] H.X.

To evaluate the freeze-thaw resistance of the specimen, a 100×100×400mm prismatic specimen was manufactured, and it was cured in water for the material age of 28 days.
For mixing the high-performance concrete, a fan-type mixer with the capacity of 80 liters was used, and the constituent materials were separately and uniformly injected in the (cement+fine aggregate)→(water+AE agent)→(coarse aggregate+viscosity agent) stages, as summarizes in Table 4.
Table 1 Chemical composition and physical properties of binders Chemical composition (%) Physical Properties - SiO2 Al2O3 Fe2O3 CaO MgO SO3 K2O Ig.loss Density (g/cm3) Cement 21.5 6.5 3.1 62.3 2.9 1.9 0.32 1.3 3.15 Fly-ash 58.2 22.29 7.27 - 1.1 0.3 - 5.2 2.3 Type of fiber Density (g/cm3) Tensile strength (MPa) Elasticity modulus (MPa) Shape ratio (%) Diameter (μm) Length (mm) Nylon 1.15 896 4500 - 12 6 Polypropylene 0.91 325 3400 - 20 6 Table 2 Physical properties of polypropylene and nylon, steel fiber Table 3 Physical properties of an aggregate Types Density (g/cm3) Size (mm) Unit volume weight(kg/m3) Absorption Void Solid volume Fineness modulus (%) Sand 2.61 5 1578 1.04 44 51 2.75 Gravel 2.63 10 1582 0.9 41 47 6.33 Table 4 Mixing properties composition of W/B ratios and materials Specimens W/B (%) FA (%) Air (%) Ny (%) PP (%) S/A (%) Materials (kg/m3) C FA V Sand Gravel Agent (%) Water GC 30 - - - 43 540 - - 713 683 0.9 160 N-1 0 4.6 0.7 43 483 - - 740 675
Acknowledgment “This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF-2014R1A1A2059498) funded by the Ministry of Education, Science and Technology” References [1] A.M.
Williams: Influence of Calcium Compounds on the Mechanical Properties of Fly Ash and Geopolymer Pastes [J], Journal of Hazardous Materials, 2009, 167, Issues 1-3, 82-88