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In this study, corrosion property of both weld metal and base metal was investigated with some electrochemical methods in natural sea water solution, in case of being welded with some welding methods and welding materials to the exhaust valve specimen as the base metal.
In this study when repair welding with various welding methods and welding materials like foreign and domestic electrode was performed at the exhaust valve part as the base metal, corrosion property of both base and weld metal were investigated with some electrochemical methods such as corrosion potential, polarization curves, cyclic voltammogram etc.. 2.
Experimental procedure Ni-Cr steel(KS:STR-3) was used with base metal(BM) and stellite electrode was also used for repair welding materials with foreign and domestic electrode respectively.
Conclusions When repair weld was performed at the exhaust valve with some parameters such as welding methods, welding materials, corrosion resistance between base metal and weld metals was investigated with electrochemical view point.
Corrosion resistance of weld metal irrespective of welding methods and welding materials was clearly superior to the base metal.

A large number of by-products (oil foot, soap, deodorizer distillate) as a pharmaceutical and chemical raw materials, with high economic value.
Oil foot and soap in both feet and contain large amounts of fatty acids (fatty acids and free fatty combination of sodium), which are raw materials Preparation of fatty acids.
Food Science,Vol.27(2006),p.372-374.In Chinese [7] Wenlin Xu,Yaqiong Wang,Ping Lu.Process engineering press,vol.2(2002),p.167-170.In Chinese
The Journal of Supercritical Fluids, 2004, 30 (1): 1 - 16
Journal of Supercritical Fluids, 2007, 40: 59 - 66

Measuring the weight of the required quantities of starting materials using the sensitive balance with the 4-digit type (mettle H35AR). 2.
[11] Ye Zhu, Tem Characteracterization of Microstructure and Chemistry in Magnesium Diboride Superconducter, A Doctor of philosophy (Materials Science ) dissertation University of Wisconsin – Madison ,2008
Journal of New Technology and Materials. 7 (2017) 22-29 [15] B John Fredrich Muller, "The development of SQUID- based gradiometer", MSC thesis, Stellenbosch University, 2010
Habeeb, "Dielectric and optical properties of (PVAc-PEG-Ber) biocomposites ", Journal of Engineering and Applied Sciences 9, (2014) 102-108
Noori, Structural and electrical properties of CuLayFe2-yO4 , Iraqi Journal of Science, 11 (2013)102-109

As one of the important directions of the development of modern high-tech new materials, smart material will support the development of high-tech in the future.
In this paper, the actuation and bending performance of SSMA-reinforced IPMCs were investigated, presented and compared with that of traditional Nafion-IPMC. 2 Experimental materials and methods 2.1 Experimental materials The perfluorosulfonic acid (PFSA) resin Nafion dispersion (DE-520，5.0-5.4 wt.% in a mixture of propanol and water) was purchased from DuPont Company.
[2] NSFC Mechanics and Materials Science Department.
Leo, Ionic polymer-metal composites as multifunctional materials [J], Polym.
Journal of Industrial and Engineering Chemistry, 2010, 94: 7pp

Funding This work was supported by 1) Foshan Science and Technology Innovation Project (No. 2020001004662); 2) Guangdong Province Science and Technology  Program (Guangdong, Hong Kong and Macao) (No. 2019A050516001).
Journal of Prosthetic Dentistry. 2020
Dental Materials. 34 (2018) 460-469
MATERIALS SCIENCE AND ENGINEERING: A. 725 (2018) 43–50
Journal of the Mechanical Behavior of Biomedical Materials. 71 (2017) 244-249.

All materials were treated as isotropic perfectly elastic material following the generalized Hook’s law.
Akcin: International Journal of Rock Mechanics & Mining Sciences Vol. 43 (2006), pp: 139-156
Evans: International Journal of Rock Mechanics and Mining Sciences Vol. 9 (1972), pp: 355-361
Nishimatsu: International Journal of Rock Mechanics and Mining Sciences Vol. 9 (1972), pp: 261-271
Fowell: Mining Science and Technology Vol. 13 (1991), pp: 257-270.

With the improvement of science and technology in China, and the application of modern professional, factory, mechanical and information means provides sufficient science and technology basis for the transformer design level.
In electronic PSCAD mode, through safely generating the existing objective materials through electronics, we could initially determine the initial program of remote detection, so as to develop feedback analysis, initial program modification and network plan construction in the process of electronic engineering operation based on detection value and experience, so as to carry it out according to the optimal design and construction plan of the project.
Journal of Chengdu Aeronautic Vocational and Technical College, 2005 (12): 25-27

The absorption properties of the eosin dye to the nano materials TiO2 were examined.
[5] Li Y, Guo M, et al: International Journal of Hydrogen Energy Vol. 34 (2009), p. 5629
[6] Jin ZL, Zhang XJ, Lu GX, et al: Journal of Molecular Catalysis A: Chemical Vol. 259 (2006), p. 275
[7] Meng N, Leung MKH, Leung DYC, et al: Solar Energy Materials and Solar Cells Vol. 90 (2006), p. 2000
[12] Liang HR, Guo LJ: Advanced Materials Research Vol. 512 (2012), p. 1426.

This explains why the effective thermal conductivity of materials is proportional to its solid content or density.
The developing status of polymethacrylimide foam, Aerospace Materials & Technology, 2008, 1(1): 1-9
Glass Fiber Reinforced Plastics/Composite Materials. 2006, 4: 13-15
Salmon, Thermal conductivity of insulations using guarded hot plates, including recent developments and sources of reference materials, Measurement Science and Technology, 2001, 12(12): R89
Ma, et al, The preparation and representation of polymethacrylimide foam material, Materials Engineering, 2008, 11: 009.

Materials and specimens.
[13] J Lemaitre, JL Chaboche, Mechanics of solid materials, Cambridge Univ Pr 1994
The Vegter Lite material model: simplifying advanced material modelling, International journal of material forming. 4 (2011) 85-92
Modelling of anisotropic work-hardening behaviour of metallic materials subjected to strain-path changes, Computational Materials Science. 32 (2005) 301-315
On the identification of kinematic hardening material parameters for accurate springback predictions, International Journal of Material Forming. 4 (2011) 103-120