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The Finite Element Simulation and Analysis of Thermal Stress Field of In-service Tubular Electro-thermal Component ZHANG Xiu-mei1,2,a ZHANG Rui-ying1,2,b LI Quan3 1College of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot, Inner Mongolia, 010051, China 2Key Laboratory of Light Metal Materials, Hohhot, Inner Mongolia, 010051, China 3 Institute of Structural Materials, Central Iron and Steel Research Institute, Beijing, 100081, China azhxmbb@sina.com, bzhang_ruiying@126.com Keywords: Tubular electro-thermal component; temperature field; thermal stress field; finite element model Abstract.
The physical property of two kinds of the heat resistant tubular materials used for establishing the model is listed in Table 1.
Therefore, for the heat-resistant insulation tubular materials mentioned in the article, the crack caused by the thermal stress is more likely to be found on the inner wall of the tube.
Lin et al, “Self-Limiting Temperature Characteristics of SnO2:Sb Electric Heating Films,” Journal of Functional Materials,1999,30(3): pp310-311
Zhu, “The influence of roughness of thin film surface on the measurement of the intrinsic stress,” Journal of Hefei University of Technology(Natural Science), 2001,24(1):pp85-88

They generally are alluvial materials or they derived from rock crushing processes [7, 8].
The continuous hydration of the cementitious materials in the garnets could determine this phenomenon [].
B Ishaq, Self-compacting geopolymer concrete with spend garnet as sand replacement, Journal of Building Engineering 15 (2018) 85-94 [5] H.
EDP Sciences [22] A.
Szilagyi, A Review on the Development of Fly Ash-Based Geopolymer Materials Using Romanian Local Raw Materials, Proceedings of the EUROCOALASH, (2019) 145-156

The corrosion phenomena lead to serious modifications in the structure of metallic materials from which are manufactured the important active components of hydraulic machines.
Metallic Materials with Cavitational Resistance Because the cavitation erosion is a severe phenomenon, [17], the metallic materials subjected to this type of erosion must simultaneously have the following property: corrosion resistance in aqueous environments (electrochemical corrosion), erosion resistance, high hardness, and high mechanical strength.
The structure of the metallic materials is very important in material mechanical characteristics and in the development of erosion.
For this, structure of stainless steel samples obtained in the Material Science and Engineering Faculty (www.sim.pub.ro) are used.
Materials science and engineering,.

Study on Sustainable Use of Raw Soil Material in Rural Houses Design in Western China Liangbin TAN1, a 1Kunming University of Science and Technology, Kunming, Yunnan, 650224, China aliangbin_tan@163.com Keywords: Raw soil material, Rural houses, Indoor physical environment, Sustainable use.
Thereinto raw soil is one of the oldest materials and is concerned again because of its ideal ecological character.
Earth buildings have incredible economic prominent advantages in comparison to buildings made by other materials.
[2] Alfred B.Ngowi, Improving the traditional earth construction: a case study of Botswana[J].Construction and Building Materials,1997,11(1):1-7
Journal of Materials in Civil Engineering, 2007, 20(3), 264-273

Developments in materials available for AM have expanded into metal matrix composite materials.
Gadaud, Additive layer manufacturing of titanium matrix composites using the direct metal deposition laser process, Materials Science and Engineering: A 677 (2016) 171-181
Xi, Research on development of in situ titanium matrix composites and in situ reaction thermodynamics of the reaction systems, Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material 13(6) (2006) 551-557
Pohl, Effects of laser sinterinng processing parameters on the microstructure and densification of iron powder, Materials Science and Engineering: A 359(1-2) (2003) 119-128
Rubenchik, Observation of keyhole-mode laser melting in laser powder-bed fusion additive manufacturing, Journal of Materials Processing Technology 214(12) (2014) 2915-2925

Introduction With the enhancing awareness of environment protection and sustainable utility of resources, it becomes a hot research area to use natural or renewable raw materials to produce biodegradable materials.
[2] Zhang Huizhen, Liu Bailing and Luo Rong: Journal of the Graduate School of the Chinese Academy of Sciences 22(2005): 658-664
[5] Zhang Huizhen, Liu Bailing and Luo Rong: Journal of the Graduate School of the Chinese Academy of Sciences 23(2006): 607-613
[7] Liu B L, Zeng X CH, and Yang J H: Chinese Journal of Materials Research 14(2000): 108-112
[18] Zhang Ruiping, Ding Matai: Journal of Functional Materials 38(2007): 2004-2007.

Besides, copper and 90CrSi alloy tool steel were chosen as the materials of the electrode and the workpiece.
Journal of Environmental Science and Engineering B, 2017. 6: p. 387-390
Arabian Journal for Science and Engineering, 2017. 42(5): p. 1917-1928
Journal of Engineering and Applied Sciences, 2010. 5(2): p. 154-162
International Journal of Mechanical and Materials Engineering, 2008. 3(1)

Hence, the reaction of hard materials to shock loading is essential for alleviating shock-induced failures and damages.
Hence, the continuous impact of loading materials on the surface of the hammer tends to cause chemical-erosion [23].
Materials and Methods.
The microscopic procedures were carried out to determine the structure of the failed and as-received materials.
Vasilyev, Efficiency of hybrid cyclic processing with the use of additive technologies on CNC machines for the manufacture of composite aviation parts due to the reduction of processing errors, In Materials Science Forum  946 (2019) 959-965.

Materials and methods Experimental material.
The main components of compost raw materials presented in table 1.
Journal of Agro-Environment Science,2009,28 (3):564-569( in Chinese)
Journal of Agro-Environment Science. 2010,29(1): 194-199( in Chinese)
Journal of Henan Agricultural Sciences, 2006(11):65-67( in Chinese)

Experimental Experimental material.
Yang: International Journal of Plasticity, 27 1833-1852
Majorell, Materials Science and Engineering: A, 326 (2002) 306-316.
Picu, Materials Science and Engineering: A, 326 (2002) 297-305
Lin: International Journal of Mechanical Sciences 50 (2008) 193–204.