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The perforation reason was not related to the material of the pipe body.
Residual Strength Evaluation Methodology and Residual Life Prediction of Corroded Pipeline, Materials for Mechanical Engineering, 2015, 39(5): 97-101
Research progress in pipeline corrosion and protection at Home and Abroad, Corrosion Science and Protection Technology, 2014, 26(1):77-80
[9] GB/T 228.1-2010, Metallic materials - Tensile testing - Part 1: Method of test at room temperature
[10] GB/T 229-2007, Metallic materials-Charpy pendulum impact test method

Tunable ferroelectric materials are one of the candidates that are considered for use in these applications.
Barium titanate (BaTiO3) based ceramics are prospective candidates of dielectric materials in the application of capacitors and tunable microwave devices [5, 6].
Recently, barium zirconate titanate (BaZrxTi1-xO3) materials have been attracted for making dynamic random access memories (DRAM) and tunable dielectric devices, just above the Curie temperature in their paraelectric state [9].
Typically, Thornton model was developed to describe the growth of sputtered materials in dependence of two parameters, substrate temperature and sputter pressure [22-23].
Ciomaga, M.Viviani, M.T.Buscaglia, Journal of the European Ceramic Society 27 (2007) 4061-4064

The sharp increase in the impact value of the specimens after PWHT is believed to be due to the comprehensive effect of softening of the materials [11], grain growth, and so on.
This might be because bulk material was used; another reason may be that additional phases in steel can be seen by XRD only if they amount to more than 5% of the material [12].
In proceedings of the Fifth International Coferrence on Creep of Materials, Lake Buena Vista, Florida, USA (1992), p. 69
Levinskas: Materials Science (MEDŽIAGOTYRA) Vol.12 (2006), p.192
Duan: Journal of Xi'an Jiaotong University Vol. 33, (1999)

Experimental set-up Machine and materials.
The materials used during the experiments are: St37-2, St52-3 and St52-LQ.
Based on tests for different material-thickness combinations, both parameters proved to be correlated.
Acknowledgements The authors like to recognize the financial support of IWT-Vlaanderen (Institute for the Promotion of Innovation by Science and Technology in Flanders) and the GOA project 2002/06 from the Katholieke Universiteit Leuven.
Journal of Materials Processing Technology Vol. 43 (1994), p. 145-163

For the simplicity, it is assumed that material properties are isotropic and independent of temperature.
Acknowledgements We would like to acknowledge the support of the National Science Foundation of China (No: 51275044).
Yang, Finite-element simulation of induction heat treatment, Journal of Materials Engineering and Performance 1 (1992) 97–112
Partanen, Numerical solution of 2D and 3D induction heating problems with nonlinear material properties taken into account, IEEE transactions on magnetics 36 (2000) 3119-3121
Develey, Magneto-thermal behavior finite element analysis for ferromagn-etic materials in induction heating devices, IEEE transactions on magnetics 27 (1991) 5235-5237

China 2 School of Electron Science and Technology, Shenzhen University, Shenzhen 518060, Guangdong Province, P.R.
t shell thickness of pipe, [mm]. fσ rheological yield stress of tubes material，[MPa].
All the materials of the model are designed as perfect elastic-plastic material, but the intensification action of the material is bi-line follow-up intensification, because all the materials are assumed to be lightly intensification in general, in order to meet the calculation condition of LMA.
Material performance in the model of the reducing elbows is showed in table 2, and its Poisson's ratio is 0.3.
ASME, Journal Pressure Vessel Technology, 120(1998)35-42

Materials and methods The test technical programs and operation parameters In this study, the experiment was conducted at a sewage treatment plant in Shanghai, and the technical program of the pilot test is the A/O biological nitrogen removal process.
Experimental material Natural zeolite (180 meshes) was from JinYun.
The results were similar to those obtained by chromatography-mass spectrometry of the sludge in sewage treatment plants, but fewer kinds of the materials were found [13].
On the other hand, sludge with zeolite could be used as a building material.
Chinese Journal of Environmental Engineering, 2007,1(3): 5～10.

References [1] Handbook of analytical methods for materials.
Materials evaluation and engineering, Inc, Plymouth, 2014
Bert, Material damping: An introductory review of mathematic measures and experimental technique, Journal of Sound and Vibration, Vol 29, no. 2, 129-153. (1973) [5] A.
Iljin, Modelling of mechanical structure, of atomic force microscope. 11th International Conference Mechatronic Systems and Materials, Kaunas Lithuania, 63-64. (2015) [6] A.
Science - Future of Lithuania, 6, 589–594. (2014) [7] FS.

Marodkar1,b and Hemant Borkar1,c* 1Department of Metallurgy Engineering and Materials Science, Indian Institute of Technology Indore, Simrol, Madhya Pradesh, 453552, India anamrataxarania@gmail.com, bphd1801205010@iiti.ac.in, ch.borkar@iiti.ac.in *Corresponding author email: h.borkar@iiti.ac.in Keywords: Magnesium, AZ91 alloy, Squeeze casting, Grain refinement, Hardness Abstract.
Introduction The need for lightweight materials to promote fuel efficiency in the automotive industry has resulted in a sharp rise in demand for Magnesium alloys in recent years.
Various series of Mg alloys have been gradually exploited as a result of the rapid development of science and technology to meet the demands of various fields.
Grain size is a well-known factor influencing material characteristics.
Zhongfan, The Role of Calcium in Microstructural Refinement of AZ91 Magnesium Alloy, Journal of Wuhan University of Technology - Mater.

Makukha, "The microprocessor CO concentration sensor based on heterostructure optopairs," in Electron Devices and Materials, 2005.
Djinovic, "Inline Liquid Concentration Measurement in Nanoliter Volume Using Fiber-Optic Low-Coherence Interferometry," Sensors Journal, IEEE, vol. 8, pp. 587-592, 2008
Ni,"Grey Correlation Analysis between Liver Cancer and Drinking Water Quality in Southeastern Coastal Areas of China," in Management and Service Science (MASS), 2010 International Conference on pp. 1-4., 2010.