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Online since: September 2013
Authors: Chang Wang, Jun Ping Yuan, Chun Yu Ma, Hai Chao Wu
Materials and method Test steel was smelted in 50 kg vacuum induction furnace and the main chemical components were shown in Table 1.
Muschenborn: Steel Research,1998,59(8),344-351 [2] G.Z.Zhang, C.Wang,G.B.Wang: Journal of University of Science and Technology Beijing, 1994,16(3), 260-265 [3] J.Kliber, I.Schindler, M.H.Huang:Journal of Materials Processing Technology, 1996, (60), 597-602 [4] A.Bakkaloglu: Materials Letter,2002.56(10):263-272 [5] J.Pernacova,D.Grman: Materials Letters.2001(47):44-49 [6] Z.W.Zheng: Iron Steel Vanadium Titanium, 2008,29(3), 11-16 [7] C.Y.Ma,Z.W.Zheng: Research on Iron and Steel, 2009,(3), 14-19
Online since: September 2013
Authors: Yan Chen, Jing Zhang
Introduction The viewpoints on values and lifestyles of consumers have become hot research subjects in both social science and marketing areas around the world.
Comparing the three basic elements ( style, color and material) with price, finance upholders and family lovers prefer lower price.
The health advocators are more attracted by the materials which bring them comfortable feelings.
Journal of Retailing, 2001
[7] Ulga W., and Eggert A., Relationship Value in Business Markets, The Construct and Its Dimensions, Journal of Business-to-Business Marketing, 2005, 12(1): 73-99
Online since: September 2013
Authors: Wen Hua Zhang, Xiu Li Yang
Introduction N-butyl propionate is a widely used organic chemical raw materials, with apricot, peach fruit aroma, mainly used in food and daily chemical industry.
N-butyl propionate is produced usually by concentrated sulphuric acid as catalyst, by propionic acid and n-butanol esterification as materials.
References [1] Keqin Xu, Handbook of Organic Fine Chemical Raw Materials and Intermediate.
[3] Jin Lin, Huating Liu and Ruqi Zhao, Chinese Journal of Inorganic Chemistry.
[6] Yin Chen, Xue Sun, Jinlian Li, Yawen Zhang and Peng Yang, Science & Technology in Chemical Industry, Vol 18, No. 3, June 2010, pp11-15, In Chinese
Online since: September 2017
Authors: A.D. Abramov, A.S. Ilinykh, Je.S. Sidorov, M.S. Galay
The quality of the welded joints depends on such factors as the quality of thermite material, the proper installation of welding molds, the control of the preheating rail duration, the duration of soaking until the mold is removed, the displacement of the rails in the process of solidification, etc.
Initial installations for modeling the cooling process of a welded joint with a mold (Model No. 1): steel grade – rail steel; the material of the form is quartz sand; the temperature of the filled metal is 2500 °С; the temperature of the rails and mold is 850 °С.
Thus, computer modeling with the LVMFlow program provides the possibility of visual analysis of the metal behavior during crystallization of the casting and optimization of the welding process due to changes in the geometry of the mold and the composition of the welding material.
[3] Brânzei M., Coman T. 2012 Structure Improvement of Aluminothermic Welding Joints by Using Modifiers International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering 6 (8) 745-748
B., Ilinykh A.S., Galay M.S. and Sidorov Je S 2016 The effect of normalization on the structure and mechanical properties of rails aluminotermitic welded joints Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) – Metal Working and Material Science 1(70) 60-66 DOI: 10.17212/1994-6309-2016-1-60-66 [6] Kargin V.A., Tikhomirova L.B., Galay M.S. and Kuznetsova Y.S. 2015 Improving service properties of welded joints produced by aluminothermic welding Welding International 29(2) 155-157 [7] Kargin V.A., Tikhomirova L.B., Abramov A.D. and Galai M.S. 2014 Effect of vibroimpact treatment on the physical and mechanical properties on the surface layer of welded joints in rails Welding International 28 (3) 245-247 [8] Mouallif Z., Radi B. and Mouallif I. 2015 The Thermomechanical Modeling of Aluminothermic Welds Affected by Different Defects International Journal of Engineering Research and Development 11 44-48 [9] Sidki F., Mouallif I., Mouallif Z. and Benali A. 2012 Finite element
Online since: May 2013
Authors: Zong Yue Bi, Lin Yun Xian
The research results would provide theoretical support for fatigue life prediction and safety operation of the coiled tubing. 1 Experiment and material The material investigated is domestic CT80 grade coiled tubing with a chemica1 composition (mass ,%)of C 0.12,Mn0.90,Cr o.50, Mo0.15, Ni0.15, Si 0.36,Cu 0.25 and small amount of Nb, V, Ti as well.
Analysis of low cycle fatigue life prediction models Research and Exploration IN [7] Mirko Klesnil et al.Fatigue of Metallic Materials, Materials Science Monograph, 1980. (7):25 [8] Chen L J,Wu W P.K.Liaw.
ACTA Metallurgica Sinica 2006 42(9) :952-958 [9] GuardY S.A new approach to the evaluation of faitgueUnder multi-axial loadings[J].Journal of Engineer in Mateiralsnad Technology,Tran sactions of ASME,1981,l03:118~125
[10] Shang D G, Yao W X, Wang D J .Study on cyclic stress strain relation under tension torsion complex loading .Chinese Journal of Applied Mechanic.1999, 16(3):66-70 [11] Chen L, Jiang J L, Fan Z C, Dission of energy models for low cycle fatigue life prediction.
Online since: August 2013
Authors: Kai He, Hao Li, Jiu Hua Li, Ruxu Du
System and Design of Five-axis Water Jet Incremental Sheet Metal Forming Machine Tool Hao Li 123, a, Jiuhua Li12,b, Kai He12,c and Ruxu Du124,d 1Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China 2Shenzhen Key Laboratory of Precision Engineering, Shenzhen, China 3Harbin Institute of Technology, Shenzhen Graduate School, Shenzhen, China 4The Chinese University of Hong Kong, Shatin, N.T, Hong Kong ahao.li@siat.ac.cn, bjh.li@siat.ac.cn, ckai.he@siat.ac.cn, drdu@mae.cuhk.edu.hk Keywords: Water jet incremental sheet metal forming, Motion controller, open CNC system,C++.
When the pressure impacted on the surface exceeds the yield limit of the material, the local plastic deformation will happen to the material.
The frame material of sealing studio is stainless steel, and the surrounded material is toughened glass.
Journal of Materials Processing Technology.
JSME International Journal .
Online since: February 2011
Authors: Xue Yuan Liu, Ying Biao Wang, Yuan Wang
Introduction With the rapid development of science and technology, some parts shape of modern industrial products becomes more and more complex, such as the taper hole, up-down abnormity hole are there in them.
Meanwhile, WEDM has been widely used in aerospace, automotive, tool and die industry[3], because it can effectively cut plane parts being made of materials to be difficultly machined, with high hardness, high strength, high brittleness and complex geometry shape, it can also cut taper hole, up-down abnormity hole and narrow gap[4].
Experiment material and machining parameters Experiment material.
Journal of Shanghai second polytechnic university, Vol22 (2005), P.40, In Chinese [2] Haidong Li.Die & mould industry, Vol33 (2007), P.63, In Chinese [3] A Guha, S Roy, P K Mishra.
Journal of LongYan university, Vol26(2008), P.44, In Chinese [5] Lianchang Mu.
Online since: November 2005
Authors: Jiande Han, Hua Shun Yu, Guang Hui Min, Li Xia Yang
Mechanical Properties of CaB6 Sintered Body Guanghui Min a, Lixia Yang b, Huashun Yu c and Jiande Han d College of Materials Science and Engineering, Shandong University, Jinan, China aghmin@sdu.edu.cn, byanglx@mail.sdu.edu.cn, cyuhuashun2002@yahoo.com.cn, d hjd0531@163.com Key words: Calcium hexaboride, polycrystalline, microstructure, mechanical property Abstract.
CaB6 also showed its usage as a good deoxidant in the metallurgical copper and an additive element in the high-temperature antioxidant materials.
Table 1 The sintering parameters and mechanical properties of CaB6 polycrystalline Materials Temperature (℃) Pressure (MPa) Rockwell Hardness(HRA) Strength (MPa) Toughness (MPa m1/2) CaB6 1850 32 91 198 2.9 CaB6+28wt%Ni 1650 32 94 217 4.2 Fig. 3 Fracture surfaces of hot-pressed CaB6 after bending test: (a) low and (b) high magnification (a) (b ) 0.25µm (a) (b) (c) Fig. 3 shows fracture surfaces of hot-pressed CaB6 after bending test.
Otani: Journal of Crystal Growth 192 (1998), p. 346 [6] K.
Ott: Journal of Physics: Condensed Matter 14 (2002), p. 1035 [7] V.N.
Online since: May 2011
Authors: Qing Chun, Jian Wu Pan
Introduction Wood is the longest building material in the architecture history, with the application history of thousands of years.
The researches on timber structures reinforced with FRP material by domestic and foreign researchers focused on single FRP material, while the research on hybrid FRP is just beginning.
Test Design The main bearing material in traditional timber buildings are pine and fir in China.
This paper was written with support by National Natural Science Foundation of China (Grant No. 51008059).
Journal Of Building Materials. 2008,11(5): 591~597
Online since: June 2010
Authors: Nai Yuan Gao, Cong Li
Materials and methods Materials Table 1 and Fig. 1 show the structure and the physical/chemical properties of BPA.
The effective area of the NF membrane is 0.5 m2 and its material is PVDF.
Investigation in Germany, Canada and Brazil, Science of the Total Environment 225(1999), p.81-90
Zulei-Seibert, Removal of pharmaceuticals during drinking water treatment, Environmental Science & Technology 36(2002), p.3855-3863
Vandecasteele, Influence of molecular size, polarity and charge on the retention of organic molecules by nanofiltration, Journal of Membrane Science 156(1999), p. 29-41.