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Introduction At present, tungsten metal material production is the main method used in powder metallurgy tungsten powder or alloy powder compaction, sintering.
Differential thermal analysis method is at the same temperature to be measured in the system and the reference material to a certain speed heating or cooling, curve recording system tested and does not change the temperature difference between the base material and time.
When the tested system with phase change, because there are endothermic or exothermic reaction, then measured reference material system and reference temperature difference will change, so as to obtain the differential thermal curve reaction endothermic or exothermic Gu Huofeng, according to the curve to determine the phase transition temperature.
Acknowledgments This study was financially supported by the National Natural Science Foundation of China (No. 51074060).
Chinese Journal of Materials Research Vol. 15(2001), p 459 [2] N.

A Research on the Performance of Grey Chassis Organic Coating on Vehicle Equipment Xu Antao1, a, Luo Bing1, 2, Zhang Fan1, Zhang Tianru1, Wang Ying3 1 Academy of Military Transportation, Tianjin 300161, China 2 94277 unit of PLA, Ji’nan 250023, China 3 School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China axuantao428@163.com Keywords: vehicle equipment; corrosion; organic coating; EIS Abstract.
The reason might be that zinc phosphate on the surface of the carbon steel base plate reacted with carboxyl and hydroxyl in base materials, and they created a complex that formed a tight protective film on the tiny area of the base surface, which protected the metal base from corrosion [4].
Sankara Narayanan, Materials chemistry and physics. 99(15) (2006), p. 117
[5] Shi Qiumei, Shao Yawei, Zhang Tao, Journal of Chinese society for corrosion and protection. 31(5) (2011), p. 389.

Glued joints are more preferable to mechanical joints in structural repair especially for composite materials [1].
The properties of the materials used in this study are listed in Table 1.
Variation in stress intensity factor as a function of crack length for different types materials.
“Thermal residual stresses effects on fatigue crack growth of repaired panels bounded with various composite materials”, Compos.
A erospace Science and Technology, 55, 359-365; (2016).

Ca2+ came from production process of raw materials manufacturing, such as filling elements in waste paper and coating layer of waste paper [4], meanwhile Ca2+ accumulated during the wastewater treatment recycling process.
Materials and methods The current works involved sampling and analyzing wastewater from a paper and pulp mill.
Especially the mucus materials of microbial secretion play an active role for the formation of sediments.
[2] Pei Wang, Yongwen Ma, Jinquan Wan, etc, Science and Technology of paper, (2005) 42-44, In Chinese
Tappi Journal. 1006,70(3):1915-1917 [8]Pauly, D.

Material Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China axianing820@163.com, bzhuzhimin@csrpz.com, cxnrpt@163.com Keywords: 6005A aluminum alloy; environmental humidity; salt fog corrosion; corrosion rate Abstract: 6005A aluminum alloys were welded at different relative humidity conditions.
The reason is that different morphologies, the corrosion pits in different size were on the material surface.
Journal of Dalian Jiaotong University, 2009,30(2):66-69. in Chinese [3] Wang Yuanliang.welding technologies of high speed trains[M].
[J]Transactions of Nonferrous Metals Science of China, 2007:326-334 [5]Zhang Xiaomu, Peng Yun, Xiao Hongjun,Yang Bo.
Chinese Academy of Sciences, Shanghai Institute of Metallurgy, Materials Physics and Chemistry (Professional) PhD thesis, 2000.

Experimental Procedure Materials and Composites Fabrication.
Both materials were mixed at the rice straw content of 10-30 wt% and then fed into a twin-screw extruder (Technovel Co., KZW25TW-60MG-NH (-1200)-AKT).
Ratna Prasad: Materials and Design Vol. 31 (2010), p. 508
Shao: Materials Science Forum Vols. 675-677 (2011), p. 361
Fu: Chemical Engineering Journal Vol. 166 (2011), p. 772.

Spikes: Lubrication Science. 18(2006), p 265-291
Dare-Edwards:“Raman Spectra of Fluids in Elastohydrodynamic Contacts”, Materials Research Society Symposia Proceedings, 22, (1984),p151-154
Zhu: Journal of Tribology.
Gonza´lez-Chi: Composites Part A: Applied Science and Manufacturing.38(3)(2007) ,p 819-827
Jones:Materials Science and Engineering A. 412(2005),p83-87

Introduction In the 90’s of twentieth century, great progress has been made in the vanadium steel smelting technology using vanadium slag as raw materials in EAF or ladle instead of vanadium iron to directly alloy hot metal [1~6].
Fig.1 Thermodynamic state diagram of reaction of vanadium oxide and FeSi ΔG0/KJ·mol-1 Temperature/℃ The research methods of V2O5 silicothermic reduction direct alloying Raw material conditions The raw materials include V2O5 powder, FeSi powder and CaO powder.
Table 1 The chemical compositions of raw materials (%) Raw materials V2O5 Si CaO SiO2 MgO Al2O3 P Al C Mn V2O5powder 99.12 - 0.03 0.07 0.36 0.05 0.008 - - - FeSi powder - 73.45 - - - - 0.023 0.87 0.015 0.30 CaO powder - 98.05 0.29 1.34 0.07 - - 0.08 - Research methods Weigh 15g V2O5 and 15.6g FeSi with fully dry and different number of CaO powder.
(In Chinese) [2] Wencai Fang, Jiaqian He: Metallurgical Steel Science and Technology.
Janod: Journal of Crystal Growth.

Especially, it is versatile in different industries for antiwear coatings based on metallic, carbide containing ceramic or composite materials.
Substrate materials The 38CrMoAl steel substrate, which is also same with the material of the engine cylinder bores, with internal diameter of 150mm, height of 200mm and thickness of 8mm, was used.
Acknowledgements This paper is financially supported by the National Natural Science Foundation of China (Grant No. 51175513), 973 Project (2011CB013403) and National Science and Technology Supporting Project (No.201BAC10B05).
Coddet, May 25–29, 1998 (Nice), 0-87170-659-8, ASM International, Materials Park, Ohio, USA (1998), pp. 963–979
Xun: journal of alloy and compounds, 473 (2009) 145-151

Introduction Carbon nanotube was one kind of the most typical and representative nano-materials and its special structure and properties caught people's attention.
In the half a minute, we can not see any carbon nano-materials from the fig.4 (a).
Acknowledgments This research was supported by National Natural Science Foundation of China (NO.50676032).
References [1]Lijima S: Nature Vol. 354(1991), p. 56 [2]Walters D A., Ericson L M, Casavant M J, et al: Apply Physics Letters Vol.74(1999), p.3803 [3]Young-Woo S, Seungeun O, Jisoon I, et al: Nanotechnology Vol. 16(2005), p.125 [4]Ajayan P M, Schadler L S: Advanced Materials Vol.12 (2000), p.750 [5] Seung M L, Kay H A, Won S K, et al: Synthetic Metals Vol. 121(2001), p.1189 [6]Dai H J, Hafner J H, Rinzler A G, et al: Nature Vol.384(1996), p.147 [7]Ando Y, Zhao X, Inoue S , et al : Journal of Crystal Growth Vol. 237-239 (2002), p. 1926 [8]Kokai F, Takahashi K, Iijima, et al: Applied Physics A: Materials Science and Processing, Vol. 73 (2001), p. 401 [9] Kong Jing, Cassell and Alan M: Chemical Physics Letters Vol. 292 (1998), p. 567 [10]Li M, Saito K and Li T: Proceedings of the Combustion Institute Vol. 29 (2002), p. 1087 [11]Liming Yuan, Kozo Saito, Wenchong Hu, et al: Chemical Physics Letters Vol. 364 (2001), p. 23 [12]Merchan-Merchan W, Saveliev Alexei V and Kennedy Lawrence
A: Combustion Science and Technology Vol. 175 (2003), p.2217