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X90, X100 pipe) is used to lay long-distance transmission gas pipelines due to the increasing demand for natural gas of our country, which could not only increase transmission pressure but also lower the cost of raw materials by reducing wall thickness of pipes and cutting down weld consumables.
So solving the problems such as welding properties, matched welding material and weld processes is good for engineering application.
Grains of 2# steel are coarse and there is much granular bainite, most of the M/A constituents are long bar-like which worsens impact toughness of material
Xu: Materials Science Forum, 2013, Vol. 762: 556-561
Han: Journal of Iron and Steel Research, 2014, 26(10), 40-45.

The lifetime of power plants materials is determined by the creep and the steam oxidation resistances of the materials working at these conditions.
Ferritic steels are usually applied as structural materials in electrical power generation At 650ºC in steam environments, the oxides formed on ferritic steels are less protective than that formed at lower temperatures.
Target material.
Acknowledgments The authors want to express their gratitude to the Spanish Ministry of Science and Technology Project founded ENE2005-0894-C02-02 References [1] J.
Palm, Journal of J.

Taguchi method was adopted to examine the influence of machining parameters and ANN approach was used for predicting the surface roughness in face milling for Al 6061 material [9].
The liquidus of this material is 582 °c and the eutectic temperature of this material is 572 °c.
Sahoo: The International Journal of Advance Manufacturing Technology Vol. 40 (2009), p. 1166-1180
Burapa: Advanced Materials Research.
Saric: MEASUREMENT SCIENCE REVIEW Vol. 13 No. 5 (2013), p. 265-272

They can be associated on material, energy or information, that is the relationship between the various subsystems are diverse
Science Press. 2001 [2] Zhang Sijing, Wang Sijing, Zhang Zhuoyuan, etc.
Science Press. 2000 [3] He Guoqing, YangLun, Ling Gengdi, etc.
Science Press. 1999 [5] Singh, Rajendra; Singh, T.N.; Dhar, Bharat B.
International Journal of Rock Mechanics and Mining Sciences & Geomechnics Abstracts 1996,33: 757~768 [6] Luo,Y, Peng,S.S.

Feng: Resources Science Vol. 28 (2006), pp. 30-35.
Wang: Marine Environment Science Vol. 28 (2009), pp. 749-754.
Ding, et al.: Marine Environmental Science Vol. 27 (2008), pp. 101-104.
Deng, et al.: Chinese Journal of Applied Ecology Vol. 13 (2002), pp. 1315-1318.
Gao: Wetland Science Vol. 4 (2006), pp. 179-186.

Rizzo Department of Materials Science and Metallurgy, PUC-Rio, Rua Marquês de São Vicente 225, Gávea, Rio de Janeiro, CEP: 22453-900, Brasil mauricio@dcmm.puc-rio.br, rizzo@dcmm.puc-rio.br Keywords: Oxidation; high-speed steel; thermobalance; dry and moist environments.
In general, HSS shell materials are based on combinations of carbon, chromium, vanadium, molybdenum, tungsten and sometimes niobium and cobalt.
It is well known that the oxidation behavior of the metallic materials depends on the chemical composition and the microstructure.
Kofstad: Corrosion science, Vol. 17 (1997), p.237
Meussner: Journal of Electrochemical Society, Vol.12 (1963), p.1195

When used two different materials as adhesive for particleboard, composition ratio and press temperature are an important factor in board production [4, 14].
Experimental Section Materials.
The materials were then dried at 60 °C overnight and powdered using a mill machine.
Prayitno, Manufacture and properties of citric acid bonded particleboard made from bamboo materials, Eur.
Ragadhita, How to read and interpret FTIR spectroscope of organic material, Indonesian Journal of Science & Technology 4 (2019) 97-118

Introduction LHV fuel gas is sourced from low grade fuel or waste material, and it has greater potential from an environmental perspective.
For raw material, coal is the primary source because of rich reserves.
Leu: Journal of Information and Optimization Sciences Vol.35, No.2 (2010), p.67

A Verification Method of Multi-Threaded Processor Based on Tree-structure Peijun Ma, Meng Liu*, Kang Li, Jiangyi Shi Key Laboratory of Wide Band-gap Semiconductor Materials and Devices of Ministry of Education, School of Microelectronics, Xidian University, Xi’an, Shanxi, China *liumeng@stu.xidian.edu.cn Key Words: Tree-Structure, Functional Coverage, Processor, Verification Abstract: A method based on tree-structure for verifying a multi-threading processor is described in this paper.
Acknowledge Support for this work was provided by Natural Science Basic Research Plan in Shaanxi Province of China (2010JM8015).
Journal of Software, 2005, 16(12):2172−2180

On one hand, students learn to imitate the language in the traditional English teaching materials, and they can not appreciate the full range of variability of oral communication and its flexibility, leading to their poor interest and less passion in learning English.
Journal of Hunan Business College, 2010, 10 [3] ShenWei, Xia Liwen, Virtual Reality Technology.
Beijing: Science Press, 2007