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As Invar alloys are important materials used in spacecraft instrumentations, investigating ionizing radiation effects on Invar alloys is one of important issues.
Su, Elastic Alloy, Shanghai Science and Technology Press, pp. 642-673. (1986) [7] N.
Kewei, Journal of Materials Processing Technology, 114, 36-40. (2001) [8] A.T.
Hahn, Materials and Design., Vol. 17, No. 2, pp.89-96. (1996) [9] C.
Kazantsev, Journal of Nuclear Materials, 414, pp. 200-204. (2011)

Materials and Methods of Research Wastewater from a dairy plant in the Sumy region (Ukraine) was used for the study.
[7] Vladimir Andronov, Yevhen Makarov, Yuliya Danchenko, Tatyana Obizhenko, Colloid-chemical regularities of reagent wastewater treatment of dairies, Materials Science Forum, 1038 (2021) 235-241
Shariati, Treatment of paper-recycling wastewater by electrocoagulation using aluminum and iron electrodes, Journal of Environmental Heals Science and Engineering, 16 (2018) 257-264
Bensmaili, Removal of tetracycline by electrocoagulation: Kinetic and isotherm modeling through adsorption, Journal of Environmental Chemical Engineering, 2, 1 (2014) 177-184
Lapicque, Electrocoagulation for the treatment of textile wastewaters with Al or Fe electrodes: compared variations of COD levels, turbidity and absorbance, Journal of Hazardous Materials, 169, 1-3 (2009) 70-76

Pure molybdenum, Yttrium Stabilized Zirconia (YSZ) and corundum (Al2O3) powders were used as coating materials.
Thanks to the possibility of selective supplying of focused energy beam (whose density can be even 107 W/cm2) in a form of monochromatic laser radiation, it is possible to precisely and quickly perform the surface heat treatment operations improving corrosion resistance, mechanical properties and abrasion resistance of various materials.
Materials and Experimental Pure Niobium (99,95%) substrates in the form of disc with diameter 50mm and thickness of 3mm were cleaned and coated using laser cladding method.
Streiff, Wang Maocai, „Effect of Laser Surface Modification on High-temperature Oxidation and Corrosion Behaviour of Alloys and Coatings“, Materials Science and Engineering, A 121 (1989) 499-507 doi.org/10.1016/0921-5093(89)90807-1 [2] Qingyu Li, Hang Zhang, Dichen Li, Zihao Chen, Fu Wang, Mengjie Wu, „Comparative study of the microstructures and mechanical properties of laser metal deposited and vacuum arc melted refractory NbMoTa mediumentropy alloy“, International Journal of Refractory Metals & Hard Materials 88 (2020) 105195 doi.org/10.1016/j.ijrmhm.2020.105195 [3] WuyanYuan, RuifengLi, Zhaohui Chen, JiayangGu, YingtaoTian, „A comparative study on microstructure and properties of traditional laser cladding and high-speed laser cladding of Ni45 alloy coatings, Surface and Coatings Technology Volume 405, 15 January 2021, 126582 doi.org/10.1016/j.surfcoat.2020.126582 [4] H.C.Li, D.G.Wang, C.Hu, J.H.Dou, H.J.Yu, C.Z.Chen, G.C.Gu, „Microstructure, mechanical and biological properties
Lyon, „Corrosion of Tantalum and Niobium and their Alloys“, Corrosion and Protection Centre, School of Materials, The University of Manchester, Oxford Road, Manchester M13 9PL, UK, 2010 Elsevier B.V. doi.org/10.1016/B978-044452787-5.00102-5 [13] M.

Acknowledgements The authors acknowledge the financial support of National Natural Science Foundation of China (50275076).
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Visualization of Contact-Pressure Distribution between Material and Backing Plate in Friction Stir Processing Takahiro Ohashi1,a*, Xin Tong1,b, Zijie Zhao1,c, Hamed Mofidi Tabatabaei1,d and Tadashi Nishihara1,e 1School of Science and Engineering, Kokushikan University, 4-28-1 Setagaya, Setagaya-ku, Tokyo, Japan atohashi@kokushikan.ac.jp, bs43a273o@kokushikan.ac.jp, cs43a154c@kokushikan.ac.jp ds1de004q@kokushikan.ac.jp, enisihara@kokushikan.ac.jp Keywords: Friction stir processing (FSP), pressure distribution, in-process sensing, visualization Abstract.
Experiment Materials.
[4] M.Otsu, Y.Katayama, T.Muranaka, Effect of Difference of Tool Rotation Direction on Forming Limit in Friction Stir Incremental Forming, Key Engineering Materials, Vol.622/623-1 (2014) 390-397
[6] K.Colligan, Material Flow Behavior during Friction Stir Welding of Aluminum, Welding Journal, Vol. 78(1999), pp.229-237
[8] T.Ohashi, H.Mofidi Tabatabaei, T.Nishihara, Vertical Wall on an Aluminum Alloy Plate Fabricated by Friction Stir Forming, Key Engineering Materials, Vol.748(2017), pp.202-206

Introduction The level of nanoscale materials are often referred to as nanomaterials.
Their properties are very novel different from the conventional materials.
Note that in the nano-materials, there are lots of structures similar to one-dimensional quantum chain, despite the complicated shapes of nano-materials.
On the other hand, we know that the surface energies of the nano-materials are different from those of the bulk materials.
Advanced Materials Research Vol. 58 (2009),p.115-120 [2] Pu Zhang Jianguo Hou, Fang Zhang.

This was a vital step in Al scrap recycling, decided the purity degree of Al melting materials, and closely related to product performance.
Materials Transactions Vol. 48(2007), p. 2219
Journal of Shanghai Jiaotong University, Vol. 39(2005), p. 1787 [13] Humberto Lopes, et al.
Materials Transactions, Vol. 47(2006), p. 1731 [14] Kenichinakajima, et al.
Environmental Science & Technology, Vol. 44(2010), p. 5594.

Time-temperature equivalent principle of viscoelastic materials The time-temperature equivalent principle can be reflected by Fig 3.
Fig.3 Time- temperature equivalent relationship of viscoelastic materials Viscoelastic Test of Asphalt Concrete A.
Raw Materials Test (1) Asphalt Its material chooses Ezhou’s SBSPG76-22 modified asphalt in this test,and test its index,the results show that they meet the requirements of specification(Table 1).
The main conclusion is to introduce the basic characteristics of asphalt concrete, which are viscoelastic materials of.
China Journal of Highway and Transport, 2001, 14 (3): 01 to 05

The authors include in the paper the results of experimental research of tensile tests both at the static and variable loads and their conclusions concerning the behavior of material during the testing activity.
Presentation of Used Material and Test Specimen Prescribed chemical composition for the steel 14CrMo 4-5 is shown in (Table 1) and in (Table 2) the usual mechanical characteristics are presented [6] Table 1.
For this purpose, it is necessary to have practical values ​​for some physical constants for steel taken as reference material.
Bressers, Applied Science Publishers, London, (1991) [3] K.
She, Cyclic stress–strain behavior and low cycle fatigue life of cast A356 alloys, International Journal of Fatigue, Volume 33, Issue 12, December p.1600–1607, (2011) [6] I.

In general, raw materials were polypropylene, polyester or other synthetic fiber.
So far, the special geosynthetics materials mainly include the following kinds of material
Journal of ZHIHUAI, 1999(8）:36-37 [5] QI Yan-lu.
Heilongjiang Science and Technology Information, 2009(34):95-100
Journal of Taiyuan University of technology, 2003, 34(5):44-48