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Alloying is one of effective ways to increase the property of iron-based PM materials.
Materials Science Forum Vol. 471-472 (2004), p. 443 [4] J.
Narasimhan: Advances in Powder Metallurgy and Particulate Materials [C].
Donald: Advances in Powder Metallurgy and Particulate Materials-2000, Part 6 [C].
Journal of Materials Processing Technology Vol. 129 (2002), p. 354 [11] HUANG Pei-yun: Theory of Powder Metallurgy.

Rohatgi: Journal of Materials Science Vol. 21 (1986), p.4299
Li: Materials and Manufacturing Processes Vol.21 (2006), p181
Sarwade: Materials Chemistry and Physics Vol. 92 (2005), p458
Zeng: Micro-damage mechanisms and strength of composite materials (Science Publications, China 2002)
Fan: Micromechanics of composite materials (Science Publications, China 1998)

The test raw material and the method 2.1 Test materials The clay of test taken from Hohhot, a site for the newly piled all disturbed clay, loose soil, soil and its main physical property indexes are shown in table 1.
,natural science edition, 2007, 27 (5) : 20-23 [8] Xianzhi Huang, Xiaohong Bai.
Journal of building structures: 2005, 26 (2) : 124-128
Journal of building materials, 2006, 9 (3) : 291-296
China journal of highway, 2006, 19 (5) : 12- 17

Along with the progress of science and technology, the requirement of mechanical parts is higher and higher.
Such as Ranko Tsuboi etc. applied ultrasonic vibration to the micro hole drilling for hard brittle materials, and it greatly improved the efficiency of processing and the service life of drill bit[2]. 2.Ultrasonic Finishing Machining Device and Principle 2.1.Ultrasonic Finishing Machining Device.
Acknowledgments This work is supported by the National Natural Science Foundation of China (51105172).
Liu: submitted to Journal of Modern Machinery (2009) [6] T.
Shen: submitted to Journal of Tianjin University (2009) [7] K.

Introduction Binary Al-Si alloys are an important materials in foundry industry due to their light mass, good mechanical properties and excellent castability.
Journal of Materials Science, 39 (2004) 2023-2032
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Journal of Materials Science, 43 (2008) 3009-3027
Materials and Technology, 44 (2010) 137-140.

Furthermore, for the same failure probability, the control indexes considering the variability of material parameters are less than the corresponding control indexes neglecting the variability of material parameters, which shows that the variability of material parameters will make the pile foundation structure partial unsafe.
Acknowledgements The research of this project is supported by Doctoral Fund at Shijiazhuang University of Economics and the Natural Science Foundation of Hebei province under Grant No.
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Arnell, Journal of Nuclear Materials. 257 (1998) 194-198
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Ewing, Journal of Nuclear Materials. 303 (2002) 177-187
Birtcher, Materials Science and Engineering A. 286 (2000) 72-80

Experimental procedures Experimental materials and conditions.
Experimental materials: Lotus fiber, cotton fiber, and viscose fiber.
Progress in Textile Science & Technology. 6 (2006) 17-19.
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Journal of Cellulose Science and Technology. 17（2008）57-60.

Preparation of Polyacrylate/ZnO Nanocomposite Junli Liu1 a, Jianzhong Ma2 b, Yan Bao2 c, Zhenfeng Zhu 1 d, Yihong Liu2 e, Ying Zheng2 f 1 College of Materials Science and Engineering, Shaanxi University of Science & Technology Key Laboratory for Light Chemical Additives and Technology of Ministry of Education， Xi’an 710021 P.
However, polyacrylate is a good film forming material with good cohesiveness, transparent, brightness and widely used in coatings, adhesives, leather treatment, additives for construction materials, paper and so on.
Mechanical properties.Mechanical properties of the nanocomposite were measured by GFU55 Functional Materials Examination Machine made by Taiwan High Iron Science and Technology Stock Company.
Adding nano materials didn’t improve the tensile strength of the polymer.
[10] Zhengfneg Zhu, Dong Yang, Hui Liu et al. : Journal of Functional Materials Vol.41(2010),p.55-58 in Chinese

[2] Komanduri, Ranga, and Zhen Bing Hou, Thermal modeling of the metal cutting process: Part I-Temperature rise distribution due to shear plane heat source, International Journal of Mechanical Sciences. 42.9 (2000) 1715-1752
Series: Earth and Environmental Science. 50 (2017) 012001
[7] Karpat, Yiğit, and Tuğrul Özel, Analytical and thermal modeling of high-speed machining with chamfered tools, Journal of Manufacturing Science and Engineering. 130.1 (2008) 011001
Outeiro, et al, Analysis of residual stresses induced by dry turning of difficult-to-machine materials, CIRP Annals-Manufacturing Technology. 57.1 (2008) 77-80
[15] Klocke, Fritz, Christof Gorgels, and Stefan Herzhoff, Tool load during multi-flank chip formation, Advanced Materials Research. 223 (211) 525-534