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Investigation of Cracks on Internal Surfaces of Extruded Cold Worked Thick Walled Pipes of an Age Hardened Al-Alloy IRSA Jahangira, HAFIZ Naeemb, ABDUL Faheemc, and ANJUM Tauqird Department of Materials Science and Engineering, Institute of Space Technology, Islamabad, Pakistan airsajahangir111@gmail.com, bnaeemrehmat@gmail.com, cabdul.faheem@ist.edu.pk danjum_t@hotmail.com Keywords: Age-Hardenable Aluminum Alloys, Al-6061, Extrusion, Cold drawing, SEM Images, EDS Analysis, Finite Element Analysis.
Von Misses criteria predicts failure of material if resolved stresses exceed yield strength [9].
The material used in the die and mandrel was a tool steel.
Silicon rich particles are from the refectory material.
Fafard , A New Method for Production of Variable Thickness Aluminium Tubes: Numerical and Experimental studies, Journal of Materials Processing Technology, 211, 2011, 578–589.Jan.2019

The thermal effect of the return is not less than the thermal effect of recrystallization and for various materials – from 0.1 to 0.7 of the total thermal effect.
International Journal of Mining Science and Technology.
The influence of fine particles of binding materials on the strength properties of hardening backfill.
Journal of Natural Gas Science and Engineering, (21), 40-63. https://doi.org/10.1016/j.jngse.2014.07.027 [31] JOGMEC/NRCan/Aurora. (2018).
Science, 326(5956), 1095-1098. https://doi.org/10.1126/science.1174010 [46] Sloan, E., & Koh, C. (2007).

Basic materials and experimental procedure Commercially available mullite C 610 (DIN EN 60 672) was chosen as base material, due to its good creep resistance at high temperatures and low manufacturing costs.
Main characteristics of the joined ceramic materials and the applied glass solder are given in table 1.
Under such conditions joint samples showed bending strength values close to the base materials.
It was found that due to the significant number of defects, all variants of mullite and Al2O3 laser-joints show a much lower Weibull modulus than the reference materials.
Journal of Applied Thermal Engineering (2010) p 1277–1291 [3] W.E.C.

Generally, n is 0.5 for materials with a direct band gap, and n is 2 for materials with an indirect band gap [5].
Acknowledgements This material is based upon work supported by the Malaysia Toray Science Foundation.
Tu, CuO/graphene composite as anode materials for lithium-ion batteries, Electrochim.
Yuan, Mesoporous Ce0.8Zr0.2O2 solid solutions-supported CuO nanocatalysts for CO oxidation: A comparative study of preparation methods, Journal of Materials Science 44/24 (2009) 6663
Caglar, Materials Science-Poland 25/3 (2007) 709

The Classification of High Concentration Organic Wastewater and Treatment at Home and Abroad According to the properties of high concentration, organic wastewater can be divided into three categories [1]: The first category is free of harmful substances and readily biodegradable organic waste water, this kind of wastewater generally comes from industrial waste water which is animal products as raw materials.
Acknowledgments The authors would like to express their sincere appreciation to Science and Technology Department of Liaoning Province for supporting this study financially through its Natural Science Foundation (No.2013020138).
Journal of Chengdu University (Natural Science Edition).No.1 (2012), p.85-88 [3] Wen Xu.Ect: Summary of chemical and physical processing technology in high concentration organic wastewater treatment.
Applied Mechanics and Materials.Vol.394 (2013), p.80-85 [7] Tao Lin (2013): Research on the Technical Characteristic of Cavitation Impinging Stream.
Advanced Materials Research Vol.800 (2013), p.560-564

The second generation of modern designers in the city followed the construction of rational economic and technical criteria, but still believe in "material form of the decision of" thinking and 20 years, "Bauhaus" design philosophy, and with the architects and urban elite perspective on issues (including social and economic problems), they take the brick and reinforced concrete, sand and gravel on the ground for a certain kind of combination of materials and space environment solutions.
Analysis of the current situation, China's modern urban design urban design is now in the early stage of the second generation, taking into account only the brick and reinforced concrete, sand and gravel on the ground for a certain kind of combination of materials and space environment solutions.
Only a simple space and a certain urban context coupled with a higher level of cultural and spiritual material properties, only a "place."
Acknowledgements This work was financially supported by the National Natural Science Foundation of china (40871062), Innovation Program of Liaoning Municipal Education Commission (2008Z105) References [1] S.Z.Wang: A history of modern design.
XIE: Journal of Chongqing Jianzhu University (in Chinese) Vol.30-6(2008), p22.

Introduction With the development of the science and technology,printing technology is widely used in the manufacturing process of electronic production.In recent years,printed electronics have combined all kinds of printed technologies,including inkjet printing ,offset printing ,gravure printing ,electricity printing and screen printing.Along with the analysis and the application on various kinds of functionality thin film electric materials and based on the thin film electric,printed technology is more widely used in thin film transistor circuit ,displayer ,interconnection line ,solar energy battery back-plane ,sensor ,clutch and other areas[1].
References [1] Li Luhai.Organic Printed Electronic Products and the trend of Technology Development[J].Advanced Materials Industry, 2010,9:54-61
[2] Xie Yifeng.New Progress on the Application of Precision Coating[J].Information Recording Materials, 2010,11(1):28-37
Organic LED Display Panel Production Method, Organic LED Display Panel Produced by the Method,and Base Film and Substrate for Use in the Method[P].US:6815141 B2,2004-11-9 [10] Zhu Datong.analysis of the ideas on the great achievement cases about PCB substrate materials(Ⅲ).
[12] Chen Zeng,Lin Yuan,Wang Zheng-ping,et al.Preparation of nano-crystalline TiO2 porous film by screen printing technique[J].Journal of Functional Materials, 2006,37(7):1073-1075.

which components is the parts made of，how many is each component number, etc.), material information(ITEM, i.e. material attribute information, such as the name, code, coding, materials of each part, etc.）
，and manufacturing process information (PBOM, i.e., the arrangement of the parts process, used equipment, tooling, working hours and consumption of materials).The three kinds of information are the main content of data exchange ( integration) between the PDM and ERP, according to the above information，the ERP system arranges activities of the production and management in the enterprises, cooperates works between various departments in enterprises[1][2].
The tree of the product structure is composed of product assembly system diagram, product parts list ( including general parts, standard parts, self-made parts, outsourcing, outsourcing parts, raw materials )like a tree, each node of the tree represents each part or component, leaf nodes of the tree represent parts, each part or component has its attribute, such as the material, weight, size, color and how many componentsis is the part made of ?
JHZD07-043, Jiangsu Huaian City Industrial Science and technology funded project NO.
BOM management based on SSPD [J].Journal of Beijing University of Aeronautics and Astronautics, 2003, 29 (5): 447 - 450 ( in Chinese)

Among the emerging technology for consolidating materials at high temperature at faster rates is microwave sintering technique.
However, only limited work has been conducted on investigating interaction between microwave and metal based materials.
Most of the work on heating and sintering was applied extensively for the processing of ceramic materials [6, 7].
Elsewhere, Y2O3 also has been incorporated into lightweight materials such as magnesium and magnesium alloys to achieve better properties [13, 14].
Journal of Physical Science Vol. 19 (1) pp. 89-95

Promoting a comprehensive view of energy consumption involves not only its reduction, but also how this can be achieved ecologically and economically, for example by increasing the involvement of recycled materials in construction or materials with minimal environmental footprint [2-4].
These two groups were further divided according to the materials used.
Wood, metal, glass or composite materials were commonly used.
The structural design and the materials used were wrongly chosen from the start.
Jackson, Active materials for adaptive architectural envelopes based on plant adaptation principles, J Facade Des Eng. 3 (1) (2015), pp. 27-38