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Online since: April 2013
Authors: Chee Fai Tan, Ranjit Singh Sarban Singh, H.F. Kong, V.K. Kher
Subsequently, the bill of materials (BOM) is generated for cost estimation purposes.
Some assumptions were made to choose the material and allowable weight to set the boundaries for analysis purposes.
Meanwhile, the strength of the new material should not be neglected.
Rosmuller and B.J.M., Ale, “Classification of fatal firefighter accidents in the Netherlands: Time pressure and aim of the suppression activity,” Journal of Safety Science, 2008, 46, page 282 –290
Las Vegas,” Available from: http://www.popularmechanics.com/science/roboticsl.
Some assumptions were made to choose the material and allowable weight to set the boundaries for analysis purposes.
Meanwhile, the strength of the new material should not be neglected.
Rosmuller and B.J.M., Ale, “Classification of fatal firefighter accidents in the Netherlands: Time pressure and aim of the suppression activity,” Journal of Safety Science, 2008, 46, page 282 –290
Las Vegas,” Available from: http://www.popularmechanics.com/science/roboticsl.
Online since: October 2010
Authors: Li Ying Han, Xiao Da Wang, Ya Nan Wang
Effects of MgO Addition Level on Microstructure and Wear Resistance of Ni-WC Vacuum Fusion Sintering Coating
Yanan Wanga , Liying Hanb and Xiaoda Wangc
School of Material and Metallurgy, University of Science and Technology LiaoNing, Anshan, Liaoning, China, 114044
awynaskd@163.com, bkdhanliying@163.com, cwxd1982wxd@yahoo.com.cn
Key words: MgO, Coating, Vacuum Fusion Sintering (VFS), Microstructure, Wear resistance
Abstract.
Improving the tribological properties of materials and reducing the abrasion by adopting coating technology is very effective[5].
The authors also would like to thank the help from University of Science and Technology LiaoNing.
Materials Protection (2006), Vol. 39, No. 5, pp.46 ~ 48
Journal of Tribology (2002), Vol. 22, No. 1, pp.10 ~ 13.
Improving the tribological properties of materials and reducing the abrasion by adopting coating technology is very effective[5].
The authors also would like to thank the help from University of Science and Technology LiaoNing.
Materials Protection (2006), Vol. 39, No. 5, pp.46 ~ 48
Journal of Tribology (2002), Vol. 22, No. 1, pp.10 ~ 13.
Online since: December 2016
Authors: Jiří Brožovský
Influence of Internal Compressive Stress on Results of Measurements with Ultrasonic Pulse Method
Ultrasonic pulse method is used for detection of defects in internal structure of materials.
Acknowledgment This paper has been worked out under the project No LO1408 “AdMaS UP - Advanced Materials, Structures and Technologies”, supported by Ministry of Education, Youth and Sports under the “National Sustainability Programme I”.
Martinček, Nondestructive dynamic testing methods of building materials and structures, 1st edition, Vydavateľstvo Slovenskej akadémie vied Bratiskava, 1962
Popovics, Effect of stresses on ultrasonic pulse velocity in concrete, Materials and Structures, 24 (1991) 15-23 [5] P.P.
Willam, Ultrasonic evaluation of damage in heterogeneous concrete materials, European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS) 2000, Barcelona, pp. 1-13 [6] S.
Acknowledgment This paper has been worked out under the project No LO1408 “AdMaS UP - Advanced Materials, Structures and Technologies”, supported by Ministry of Education, Youth and Sports under the “National Sustainability Programme I”.
Martinček, Nondestructive dynamic testing methods of building materials and structures, 1st edition, Vydavateľstvo Slovenskej akadémie vied Bratiskava, 1962
Popovics, Effect of stresses on ultrasonic pulse velocity in concrete, Materials and Structures, 24 (1991) 15-23 [5] P.P.
Willam, Ultrasonic evaluation of damage in heterogeneous concrete materials, European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS) 2000, Barcelona, pp. 1-13 [6] S.
Online since: June 2019
Authors: Ileana Constanta Rosca, Corneliu Nicolae Druga, Radu Necula
Pairs of materials used for hip implant joints
The most frequent combinations of materials used for hip implant joints are Metal-on-Polyethylene bearings (MoP), followed by Metal-on-Metal bearings (MoM), Ceramic–on-Polyethylene (CoP), and Ceramic-on-Ceramic (CoC).
These materials used for joint endoprostheses are stronger and more resistant to impact loading than the previous ones [13].
Lemons, An Introduction to Materials in Medicine, 2nd Edition, California, Elsevier Academic Press: (2004) 535
Vladescu, Contributions to the improvement of the tribological behaviour of hip implant joints, Journal of Science and Arts Year 16, No. 2(35), (2016) 177-184
[19] Standard Test Method forWear Testing of Polymeric Materials Used in Total Joint Prostheses.
These materials used for joint endoprostheses are stronger and more resistant to impact loading than the previous ones [13].
Lemons, An Introduction to Materials in Medicine, 2nd Edition, California, Elsevier Academic Press: (2004) 535
Vladescu, Contributions to the improvement of the tribological behaviour of hip implant joints, Journal of Science and Arts Year 16, No. 2(35), (2016) 177-184
[19] Standard Test Method forWear Testing of Polymeric Materials Used in Total Joint Prostheses.
Online since: March 2012
Authors: Krystian Prusik, Grzegorz Golański, Joanna Kępa, Paweł Wieczorek
Characterization of precipitation process in T24 steel
after long – term ageing
Grzegorz Golański1,a, Joanna Kępa1,b, Paweł Wieczorek1,c, Krystian Prusik2,d
1Institute of Materials Engineering, Częstochowa University of Technology,
Armii Krajowej 19, 42 – 200 Częstochowa, Poland
2Faculty of Computer Science and Materials Science, University of Silesia,
Bankowa 12, 40 – 007 Katowice
agrisza@wip.pcz.pl, bjkepa@wip.pcz.pl, cpawel@wip.pcz.pl, dkrystian.prusik@us.edu.pl
Keywords: T24 steel, ageing, microstructure, precipitate.
The material for research was low-alloy bainitic T24 steel.
Material and methods The tests were carried out on banitic 7CrMoVTiB10-10 (T24) steel with its chemical composition presented in Table 1.
Vandenberghe: International Journal of Pressure Vessels and Piping 84 (2007), p. 13
Zifĉák, in 8th Liege Conference Materials for Advanced Power Engineering, edited by J.
The material for research was low-alloy bainitic T24 steel.
Material and methods The tests were carried out on banitic 7CrMoVTiB10-10 (T24) steel with its chemical composition presented in Table 1.
Vandenberghe: International Journal of Pressure Vessels and Piping 84 (2007), p. 13
Zifĉák, in 8th Liege Conference Materials for Advanced Power Engineering, edited by J.
Online since: June 2009
Authors: Fu Lei Chu, Zhi Peng Feng, Ru Jiang Hao
Defects Diagnosis of Bearing by Means of Acoustic Emission and
Continuous Wavelet Transform
Rujiang Hao1,a, Zhipeng Feng2,b
, Fulei Chu3,c
1
Department of Mechanical Engineering, Shijiazhuang Railway Institute, Shijiazhuang 050043,
China
2
Institute of Vehicular Engineering, University of Science and Technology Beijing, Beijing, 100083,
China
3
Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084,
China
a
h_rujiang@126.com, bzhipeng.feng@yahoo.com, cchufl@mail.tsinghua.edu.cn
Keywords: acoustic emission, continuous wavelet transform, signal purification, defect diagnosis
Abstract.
Particles inside martial (atoms, molecules and particle swarm) will generate elastic waves from the transient release of strain energy as a result of the relative motion inside the materials.
AE is defined as transient elastic waves generated from a rapid release of strain energy caused by a deformation or damage within or on the surface of a material [1].
Acknowledgments The authors gratefully acknowledge the financial support of Natural Science Foundation of China (50425516, 10732060 and 50705007), Natural Science Foundation of Hebei Province (E2007000649) and Scientific Research Foundation for Returned Overseas Chinese Scholars.
Chen: Mechanical Systems and Signal Processing Vol.16 (2002), p. 447 [5] LIN Jing, QU Liangsheng: Journal of Sound and vibration Vol. 234 (2000), p.135 [6] PENG Zhike: Application of wavelet analysis in diagnostics of rotate machinery, doctor dissertation, Tsinghua University, 2002 [7] CHEN Guoliang, WANG Xufa, ZHUANG Zhenquan: Genetic Algorithm and Its Applications ( People's Post & Telecommunications Publishing House, Beijing,1996) [8] YU Lei, CHEN Xumei, GENG Yanbin et al: Journal of Tsinghua University (Science and Technology) Vol. 44 (2004), p.793 [9] D.L.
Particles inside martial (atoms, molecules and particle swarm) will generate elastic waves from the transient release of strain energy as a result of the relative motion inside the materials.
AE is defined as transient elastic waves generated from a rapid release of strain energy caused by a deformation or damage within or on the surface of a material [1].
Acknowledgments The authors gratefully acknowledge the financial support of Natural Science Foundation of China (50425516, 10732060 and 50705007), Natural Science Foundation of Hebei Province (E2007000649) and Scientific Research Foundation for Returned Overseas Chinese Scholars.
Chen: Mechanical Systems and Signal Processing Vol.16 (2002), p. 447 [5] LIN Jing, QU Liangsheng: Journal of Sound and vibration Vol. 234 (2000), p.135 [6] PENG Zhike: Application of wavelet analysis in diagnostics of rotate machinery, doctor dissertation, Tsinghua University, 2002 [7] CHEN Guoliang, WANG Xufa, ZHUANG Zhenquan: Genetic Algorithm and Its Applications ( People's Post & Telecommunications Publishing House, Beijing,1996) [8] YU Lei, CHEN Xumei, GENG Yanbin et al: Journal of Tsinghua University (Science and Technology) Vol. 44 (2004), p.793 [9] D.L.
Online since: March 2011
Authors: Ming Der Jean, Tzu Hsuan Chien
Among thermal spraying processes, high velocity oxy-fuel (HVOF) thermal spraying coating has been widely adopted in many industries as a protective coating for various materials due to lower cost and ease of operation [1-3].
Experiments 2.1 Materials and Preparations The HVOF system was employed to spray WC/Co powder on the workpieces.
Miguel Journal of Thermal Spray Technology 2005; 14; 405-413
Journal of Alloys and Compounds 2009;467; 163–167
Applied Surface Science 2005; 245; 290-303
Experiments 2.1 Materials and Preparations The HVOF system was employed to spray WC/Co powder on the workpieces.
Miguel Journal of Thermal Spray Technology 2005; 14; 405-413
Journal of Alloys and Compounds 2009;467; 163–167
Applied Surface Science 2005; 245; 290-303
Online since: December 2010
Authors: Yu Han Wang, Jian Guo Yang, Yong Qiao Jin
Acknowledgments
This work was supported by the National Natural Science Foundation of China (No. 50875171), and
the National 863 High-Tech Development Project (No. 2009AA04Z150).
Wang, "Fast Bezier interpolator with real-time lookahead function for high-accuracy machining," International Journal of Machine Tools & Manufacture 47, 2007, p. 1518-1529
Wang, "Real-Time NURBS Interpolator with an Optimal Feed for High-Speed Machining," Advanced Materials Research, vol. 69-70, 2009, p. 461-465
Li, "An Optimal Feed Interpolation Algorithm for High-speed Five-axis Machining," Materials Science Forum, 532-533:873-876
Cheng, "A real-time NURBS surface interpolator for precision three-axis CNC machining," International Journal of Machine Tools & Manufacture 43, 2003, p.1217-1227
Wang, "Fast Bezier interpolator with real-time lookahead function for high-accuracy machining," International Journal of Machine Tools & Manufacture 47, 2007, p. 1518-1529
Wang, "Real-Time NURBS Interpolator with an Optimal Feed for High-Speed Machining," Advanced Materials Research, vol. 69-70, 2009, p. 461-465
Li, "An Optimal Feed Interpolation Algorithm for High-speed Five-axis Machining," Materials Science Forum, 532-533:873-876
Cheng, "A real-time NURBS surface interpolator for precision three-axis CNC machining," International Journal of Machine Tools & Manufacture 43, 2003, p.1217-1227
Online since: August 2024
Authors: Sabine Schwarz, Rainer Hahn, Alexander Kirnbauer, Appu Vengattoor Raghu, Christopher Zellner, Ulrich Schmid, Markus Leitgeb, Georg Pfusterschmied, Marco Perazzi
After the assessment of material reorganization after annealing, the crystallographic structure of the closed pores surface is investigated.
Careful examination suggests that the superficial layer on the inner pore wall may not follow the same ordered crystalline structure as expected from the bulk material.
Surface science reports, 48(1-4), 1-51
ECS Journal of Solid State Science and Technology, 5(10), P556
Journal of The Electrochemical Society, 164(12), E337
Careful examination suggests that the superficial layer on the inner pore wall may not follow the same ordered crystalline structure as expected from the bulk material.
Surface science reports, 48(1-4), 1-51
ECS Journal of Solid State Science and Technology, 5(10), P556
Journal of The Electrochemical Society, 164(12), E337
Online since: February 2014
Authors: Yi Lun Chi, Yuan Cheng Tsai
Student, Department of Computer Science and Information Engineering, Asia University, Taichung, Taiwan
aemail:sultan@ocu.edu.tw, bemail:chiy@ocu.edu.tw
Keywords: fuzzy theory; possibility theory; inventory strategic; risk evaluation
Abstract.
The paper formulated a proposed methodology to manage diminishing manufacturing sources and material shortage (DMS) with conclusions and recommendations on the subject of component obsolescence management in a military electronic support environment.
The Companies, in which there are large-scale electronic equipment systems that must be operated, are all already lacking in the question of Diminishing Manufacturing Sources and Material Shortage (DMS) in electronic systematic systems.
The DMS project is not only a design project but also a material supply project.
Modeling subjective evaluation for fuzzy group multicriteria decision making, European Journal of Operational Research, 2009, 194(2), 464-473
The paper formulated a proposed methodology to manage diminishing manufacturing sources and material shortage (DMS) with conclusions and recommendations on the subject of component obsolescence management in a military electronic support environment.
The Companies, in which there are large-scale electronic equipment systems that must be operated, are all already lacking in the question of Diminishing Manufacturing Sources and Material Shortage (DMS) in electronic systematic systems.
The DMS project is not only a design project but also a material supply project.
Modeling subjective evaluation for fuzzy group multicriteria decision making, European Journal of Operational Research, 2009, 194(2), 464-473