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Bending Fatigue Damage Behavior of Annealed Polycrystalline Cu Foil Wang Minga, Zhang Xua, Cheng Lilia, Zhang Qiangb* aCollege of Materials Science and Engineering, Liaoning Technical University, 47 Zhonghua Road, Fuxin 123000, Liaoning, China; bInstitute of Science and Technology, Liaoning Technical University, 47 Zhonghua Road, Fuxin 123000, Liaoning, China amwang@lntu.edu.cn, blgdjx042@126.com Keywords: polycrystalline Cu foil; cantilever beam bending; fatigue properties; fatigue damage Abstract The metal foils at micrometer scale are applied in micro-electromechanical systems (MEMS) and devices widely, which the mechanical behaviors of them are significantly different from that of bulk materials and thin films constrained by a substrate.
Compared with the fatigue life of other Cu materials, the fatigue life of the annealed polycrystalline Cu foil is much larger than that of the thin Cu film material and the Cu bulk material under the same total strain.
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Journal of Materials Research. 20 (2005) 201-207

This results in a larger volume of heat-affected material as shows in fig.3a and fig.3b.
Acknowledgement This project is supported by Science and Technological Program for Dongguan′s Higher Education, Science and Research, and Health Care Institutions (Project No. 2011108101002，and Project No. 2012108101001), Cooperation Project of Industry, Education and Academy of Guangdong Province, Guangdong Province Science and Technology Department (Project No.2012B091000012)，Students' Innovative project (Project No.1181912009).
Laser Welding of Polymers Using High-power Diode Lasers, Laser Processing of Advanced Materials and Laser Micro Technologies, Proceedings of SPIE, 2005, (5121):385-393
Materials and Design. 2009, (30): 2745-2751
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Angular Distortion Reduction by In-process Control Welding using Back Heating Source Shigetaka Okano1, a , Masahito Mochizuki1 , and Masao Toyoda1 1 Department of Materials and Manufacturing Science, Osaka University (Japan) a okano@mapse.eng.osaka-u.ac.jp Keywords: welding distortion, angular distortion, in-process control, back heating, fillet joints, residual stress Abstract.
Back heating traditionally had two different goals for angular distortion reduction: one is to bend the welded materials in the opposite direction and the other is homogenization of the temperature distribution along the thickness that is not concerned with the increase and decrease of heat input provided to welded joint.
These properties were determined by considering the temperature dependence of the material.
Toyoda: Thermal Conductivity Theoretical Examination Concerning Characteristics of Welding Distortion produced by Multiple Heat Sources, Quarterly Journal of the Japan Welding Society, 24(2006), 324-330.
Toyoda: Characteristics of Welding Distortion and Its In-Process Control by Ahead Heating Method in Aluminum Alloy, Journal of Light Metal Welding and Construction, 38-11 (2000), 536-543.

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Journal of Pharmaceutical Research International. 2020; 32(33), 23-31
Journal of Pharmaceutical Research International. 2021; 33(17), 31-38

Due to its direct band gap property, this material is commonly used in the Optoelectronics.
Available: http://scitation.aip.org/content/aip/journal/jap/114/4/10.1063/1.4816796 [7] J.
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Materials Letters. 3(3) (2012) 188-196

Besides that, aluminium is much cheaper than materials commonly used in other popular battery designs, e.g. lithium.
Conventional metal elements (anode, cathode) replaced by human-friendly textile-based materials. 2.
An important novelty is the textile materials used, which replaces the conventional aluminium- and silver-containing materials, resulting in a human-friendly, flexible product.
The Journal of the Textile Institute, Vol.12 No.2019, 1.-6.lpp.
Journal of Power Sources 110 (2), pp. 1-10, 2002.

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The coal mining mode of paste-like fill shows the connotation and characteristics of green mining both in the filling materials and mining backfill technology.
Obviously, if cemented filling technology in mental mines is applied to mining in collieries, the inevitable result is that the sources of filling materials are inextricable and filling cost is too high.
Therefore, developing new cementitious materials, broadening the sources of filling materials and lowering the filling cost will be the keys.
The coal mining mode of paste-like fill shows the connotation and characteristics of green mining both in the filling materials and mining backfill technology.
References [1] Minggao Qian, Jialin Xu and Xiexing Liao: Journal of China University of Science & Technology Vol.32 (2003), p. 343–348, in Chinese

The effect of Forming Speed on the Formability of a Zr-based Bulk Metallic Glass Xiao WU1，2,a，Jianjun LI1,b ，Zhizhen ZHENG1,c and Jinyang LI1,d 1 State Key Laboratory of Material Processing and Die and Mould Technology of Huazhong University of Science and Technology, Wuhan 430074 , P.R.
For forming of complex parts, the rheological behaviors of materials are all relatively complex and it is difficult to control the forming process.
Since under the non-Newtonian rheology, the deformation behavior of metallic glasses is close to that of plastic material than that of viscous material, it desirable to deform the metallic glasses at high strain rate.
Acknowledgement The research is supported by the National Natural Science Foundation of China under grant No. 51275364 and No. 50635020.
Chinese Journal of Nonferrous Metals|Chinese Journal of Nonferrous Metals 14 (2004) 1073-1077

Introduction Titanium alloy materials with high specific strength, good corrosion resistance are widely used in industrial fields, but as the typical difficult-to-cut material it also has the characteristics of small thermal conductivity, high temperature, tool wear will adversely affect the surface quality [1-4].The change of chip morphology and surface quality is caused by the change of cutting environment caused by the tool wear [5].
The experimental materials are TC4, cutting tool is φ20mm ball-end milling cutter with indexable two teeth is made by DIJET company, uncoated.
Science China Technological Sciences. 54 (2011) 490-501
International Journal of Machine Tools & Manufacture 89 (2015) 110–123
Journal of Manufacturing Process. 14 (2012)257-268