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Hydrogen Influence on Microstructure and Properties of Novel Explosive Welded Corrosion Resistant Clad Materials Michał Gloc1,a, Hanna Słomińska1,b, Łukasz Ciupiński1,c 1Warsaw University of Technology, University Research Centre - Functional Materials, Woloska 141, 02-507 Warsaw, Poland amichalgloc@wp.pl, bha.slominska@gmail.com, cL.Ciupinski@inmat.pw.edu.pl Keywords: Novel materials, explosive welding, hydrogen degradation Abstract.
The materials described in this article are widely used nickel alloy Inconel C-276 and super duplex steel SAF 2507 as clad materials for their superior resistance to corrosive environment and low alloy steel P355NH as a base material.
From the materials science point of view the interface is a complex system composed of intermetallic nanomaterials and amorphous compounds exhibiting often unique properties. 100 µm P355NH base material A SAF 2507 clad material Wavy joint with melted zones Melted zone B SAF 2507 clad material P355NH base material 20 µm ION etched melted zone C SAF 2507 clad material P355NH base material Wavy joint with melted zones D Inconel C-276 - clad material P355NH base material 100 µm E Inconel C-276 - clad material Melted zones P355NH base material 20 µm ION Etched melted zone F Figure 3.
The basic condition of obtaining the joint is forming the plastic zone in the collision area of welded materials.
Journal of Alloys and Compounds, Volume 671, Pages 446-451 (2016) [4] M.

Acknowledgements This work was financially supported by the Henan Province Key Science and Technology Project (132102310113), Henan Province Basic and Frontier Technology Research Project (142300410290) and the Key Science and Technology Program of Henan Province Education Department (14A560018).
Emilie: ACI Materials Journal, Vol 95 (4), (1998)
Batson: Journal of the American Concrete Institute, Vol 60 (6), (1963), p. 775-789
Xu: Fiber Reinforced Concrete and Fiber Mortar, (China Building Materials Industry Press, Beijing, 2005)
Shen: New Fiber Reinforced Cement-based Composite Materials, (China Building Materials Industry Press, Beijing, 2004).

It was first created by NEMA from the basic materials in 1968 [16].
To analysis the variation of S11-parameter by changing the substrate materials which have permittivity almost near to FR-4, a comparison is shown in Fig. 6.
Table 3 shows the list of the materials used in the comparison.
Table 3: Dielectric properties of different substrate materials Substrate Materials Relative Permittivity Loss tangent Rogers TMM 4 (tm) 4.5 0.002 Arlon AD450 (tm) 4.5 0.0035 FR-4 4.6 0.02 Bakelite 4.8 0.002 Fig. 6.
Misran, "Dual polarized microstrip patch antenna for Ku-band application," Informacije MIDEM-Journal of Microelectronics Electronic Components and Materials, vol. 41, pp. 114-117, 2011

The Properties of Modified Adobe Materials with Desulfurization Waste* Xingwen Jia Yajie Zhang Jueshi Qian (College of Material Science& Engineering, Chongqing University, Chongqing, China) (E-mail:jiaxingwen@126.com) * Key Technologies R&D Program of China(Project Number: 2006BAJ04A04-02) Keywords: desulfurization hemihydrates gypsum (DHG); desulphurization fly ash (DFA); modified adobe materials; drying shrinkage; durability Abstract: As a modifier, desulfurization waste can improve the performance of traditional adobe materials.
Currently, the modifiers of adobe materials are cement, lime，fly ash and other cementations materials [3,4].
Consequently, adding DFA into the adobe materials, the water resistance of adobe materials can be improved significantly.
Journal of China Coal Society, vol.31, no.4, pp.506-510, April 2006
Journal of the Chinese Ceramic Society, vol.34, no.8, pp.828-831, August 2006

(7) The propagation theory of wave in functionally graded materials It can be assumed that the functionally graded materials plate, shown in Fig. 1, has no vacancies and consists of two kinds of materials A and B, fA is the A materials components, and fB = 1-fA.
International Journal of Engineering Science, 2008. 46: 809-817
Science in China G:Physics, Mechanics&Astronomy, 2008. 51(2): 165-175
International Journal of Solids and Structures, 2009. 46: 1354-1361
International Journal of Engineering Science, 2008. 46: 929-947

The silicate / cement based composites is a group of materials which consist of silicate / cement paste matrix and e.g. sandstone, granite or basalt aggregate.
Eigenvector for both materials then form one joint eigenvector vk=vk0,vk1.
The authors would like to thank the Czech Science Foundation for financial support through the Grant 16/18702S.
L., Pasadena, C., Journal of Applied Mechanics 24 (1957) 109-114 [2] Knésl, Z., International Journal of Fracture, 1991, 48: (4) R79 – R83 [3] Hein, V.
S., International Journal of Engineering Science 12 (1974) 107-120

Henan, Zhengzhou, China aameispring@163.com, blvhongjv@163.com Key words: Concrete material; Overpass; Culvert; Underpass; Lengthening technique Abstract: The widening of expressway refers to many overpass, culvert and underpass made of concrete material.
Lengthening technique about concrete material of culvert and underpass differs when the widening method of expressway is different.
In the end, the application of lengthening technique about concrete material is introduced by engineering examples.
Lengthening technique of overpass, culvert and underpass made of concrete material Lengthening technique of overpass.
References [1] Dezhi Wang: submitted to Liaoning Communication Science and Technology (2001) (in Chinese) [2] Zhenbo Song: Liaoning Communication Science and Technology (2004) (in Chinese) [3] Yongxu Xia, Zhanping You, etal: submitted to China Journal of Highway and Transport (2002) (in Chinese) [4] Yongxu Xia, Lianxu Xue, etal: submitted to Journal of Chang’an University(Natural Science Edition) (2002) (in Chinese) [5] Qiang Xu: submitted to China Communications Press(2011)(in Chinese)

Numerical Investigations of Ultrasonic Scattering from voids in Composite Materials Based on Random Void Model1 Li Lin, Xiang Zhang, Jun Chen, Ximeng Li NDT & E Laboratory, School of Materials Science & Engineering, Dalian University of Technology, Dalian, Liaoning Province, China linli@dlut.edu.cn Keywords: Composite; Porosity; Ultrasonic attenuation; Random void model; Morphology.
Even at the fixed porosity, ultrasonic attenuation coefficient fluctuates due to the randomness of void morphology in CFRP composite materials.
Komsky, "Quantitative porosity characterization of composite materials by means of ultrasonic attenuation measurements," Journal of Nondestructive Evaluation, vol. 11, pp. 1-8, 1992
Jeong, "Effects of Voids on the Mechanical Strength and Ultrasonic Attenuation of Laminated Composites," Journal of Composite Materials, vol. 31, pp. 276-292, February 1, 1997 1997
Li, "A morphology-dependent model applied to predict void content of composites based on ultrasonic attenuation coefficient: Random Void Model," Applied Physics A: Materials Science & Processing.

Damage in materials.
Presently, the testing of materials at high strain rates relies on Hopkinson bars and related methods which are macroscopic and cannot follow the localization in the materials.
Nevertheless, a very large field of research is now open on many issues where engineers struggle, like highly non-linear materials, assessment of damage, heterogeneous materials, welds etc.
Pierron: in Applied Mechanics and Materials vol. 7-8, edited by J.
Sutton: Mechanics of Materials (2008), in press

A new method for mechanics analysis of bar structure materials HONG Lin School of Mechanical Engineering, Tianjin University of Commerce, Tianjin, 300134, China honglinsd@163.com Key words: Bar structure, materials, mechanism analysis, multi-parameters Abstract: A method for mechanics analysis of bar structure materials has been presented in the paper.
By this time, mechanics analysis of bar structure materials can be easily realized with above parameters.
Conclusion Through analysis and solutions to variety of bar structural materials, kinematics equations have been derived, and further dynamic solutions of bar structure materials can also be obtained.
Journal of Tsinghua University (Science and Technology), 2008, 48(2): 184-188. in Chinese
Journal of Engineering Graphics, 2010, 31(5): 89-95, in Chinese.