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Ukoba2,b 1,2Federal University of Technology, Akure Nigeria 2Engineering Materials Development Institute, Akure Nigeria aokekayode2002@yahoo.com, bukobaking@yahoo.com Keywords: Ductile Iron, Environment, Reaction, Corrosion Abstract.
Ductile iron pipe is stronger and easier to tap, requires less support and provides greater flow area compared with pipe made from other materials.
Corrosion is the gradual degradation of a material.
This will help the engineers, scientists, materials sellers and users, policy makers especially in areas of usage and storage.
[4] Simpson Charles, American Chemical Society ‘CHEMTECH’, “Improved Corrosion Inhibiting Pigments”, adapted from the Arabian Journal for Science and Engineering Vol. 27, No 4 (1997) 40-42

It was preferred over other materials because of its advantages such as biodegradability, hydrophilic properties, natural origin, abundance, and have a strong affinity of forming complexes with metal ions due to the abundance of carboxylate functions [4].
Mangrove bark is one example of tannin rich materials generates from charcoal making industries.
Wang, Kinetic study on lead (II) ion removal by adsorption onto peanut hull ash, Journal of the Taiwan Institute of Chemical Engineers 42(2011) 166–172
Journal of Colloid Interface Science, 286(2005), 90–100
Gupta, Adsorption of uranium from aqueous solution using chitosan-tripolyphosphate (CTPP) beads, Journal of Hazardous Materials 184(2010) 65–72

Gear is a component made of metal materials, and it is possible for a bonding to emerge between metal materials if high temperature is caused by such two components in their meshing.
Material selection The quality of materials plays a great influence on the mechanical properties of gear, and the standards for the gears made of different materials are also different.
First, the nonmetallic materials are commonly used in the mechanical drive of small strength, and bakelite and plastic materials can be chosen for these gears.
Second, metal materials are very applicable to the spare parts of machinery equipment, and iron, steel, and aluminum are very practical materials.
Journal of Shiyan Technical Institute, 2004 (02).

Material and test specimen The material used in this work is stainless steel AISI 316L, which is one of the most utilized steel in the area of biomechanics.
The stress-strain curve for this material was obtained by four point bending tests (Fig. 3) [8].
Dally: Fast fracture and crack arrest, ASTM STP 627, American Society for testing and Materials, 1977, p. 257-273
Fellows: A method for the simultaneous derivation of tensile and compressive behavior of materials under Bauschinger effect using bend tests, Proceeding of the MECHE, Part C, Journal of Mechanical Engineering Science, Vol. 220, No. 10, 2006, p. 1509-1518
Schindler: Residual stress measurement in cracked components: Capabilities and limitations of the cut compliance method, Materials Science Forum; Residual Stress ECRS 5, Vol. 347-349, 2000, p. 150-155

Citation & Key Engineering Materials Vols
Zheng Key Laboratory of Metastable Materials Science and Technology, College of Material Science and Engineering, Yanshan University, Qinhuangdao, P.R.
Xu: Transactions of the ASME: Journal of Manufacturing Science and Engineering Vol. 123 (2001), p. 13 [7] X.P.
Shen: Key Engineering Materials Vol. 202-203 (2001), p. 67 [8] Y.H.
Wang, et al: Key Engineering Materials Vol. 202-203 (2001), p. 199

Yahya, Advanced Materials Research (2012) Vol 488-489 pp 628-632 [8] Z.
Balaban: Optical Materials, Vol 27 (2005) p. 1369 [12] O.
Ramadin: Optical Materials Vol 14. (2000) p 287 [14] F.
Arslan: Optical Materials Vol 27 (2004) p 29 [15] Calgar Y., Ilican S., Caglar M.: Eur.
Menth: Journal of Non-crystalline Solid Vol 8 (1972) p 569

Investigating the weldability of different material groups is a complex task, there are different problems related to different types of materials, which can make more difficult their welding.
Lukács, The properties of welded joints made by 6082-T6 aluminium alloy and their behavior under cyclic loading conditions, Materials Science Forum, Vol. 812., 2015, pp 375-380
Meilinger, Characteristics of fatigue cracks propagating in different directions of FSW joints made of 5754-H22 and 6082-T6 alloys, Materials Science Forum Vol. 794 - 796, 2014, pp. 371 - 376 [3] D.
Katgerman, Mechanical properties in the semi-solid state and hot tearing of aluminium alloys, Materials Science, 2004.
Mandziej, Physical Simulation of Metallurgical Processes, Materials and technology 44, 2010./ 3, pp. 105-119

The eventual size of about 100nm granular cementite and ferrite grain size on average of about 0.3 μm of fine grained materials had got.
Ma: Journal of Anhui Institute of Mechanical and Electrical Engineering, Vol. 14 (1999) No.4, p.10.
Zhang: Chinese Journal of Materials Research, Vol. 19 (2005) No.2, p.200.
Yang: Materials for Mechanical Engineering, Vol.20 (1996) No.2, p.33.
Wang: Transations of Materials and Heat Treatment, Vol. 31 (2010) No.3, p.59.

This paper deals with the feasibility of beach protection project alternative materials-dredged sand, applies cement and addition to solidify it.
Test materials and methods Waste soil sample analysis Chemical composition analysis：Use sandy soil samples for chemical analysis.
Environmental Science and Technology, 2002, 25(4): 39-41.
River Soil & Sand Solidified Blocks as Ballast in Beach Protection Advanced Materials Research Vols. 779-780 (2013) pp 323-326 [6] MAO Jing-min，LI Se-zhuan.
Journal of Yangtze River Scientific Research Institute, 2012,29(8): 118-124.

Research on the Three-dimensional Displaying of STL ASCII and Binary File Ying Zhang1, a Xin Shi2,b 1Institute of Aeronautical Engineering, CAD/CAM Center, Shenyang 110136, China 2Shenyang Aero-Space University,CAD/CAM Center, China azhangyingzxs@163.com,bshixin4019@163.com Keywords: STL; ASCII; Binary; OpenGL; Three-dimensional Display Abstract:Based on the detailed analysis of the STL file format, VC++ 6.0 programming language was used to extract the STL ASCII and binary file information, at the same time, using the OpenGL triangle drawing technology for graphical representation of the STL file, with rendering functions such as material, coordinate transformation, lighting, et al, finally realizing the loading and three-dimensional display of STL ASCII and binary file formats.
Because the OpenGL provides a series of functions, such as material, lighting, anti-aliasing,et al[5,6].Just input the proper codes according to certain format,thedisplay of STL can be realized.
[2]WeiWei,Zhou Lai-shui,Zhang Li-yan.Rapid STL File Loading and Visualization[J].Mechanical Science and Technology,2006,25(8):935-939
[4]ZHANG Zhen-zhen,CHEN Ding-fang.STL File Loading Based On VC[J].Journal of HuBei University of Technology,2008,23(2):44-46