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Online since: August 2013
Authors: Yue Hui He, Jian Xun Gong, Fang Tang, Yi Feng Xiao, Zhi Wei Hou
Effects of Vanadium on Microstructure and Properties of a Fe-Cr-W-Mo-V Overlaying Alloy Yifeng Xiao1, a, Zhiwei Hou1,b, Fang Tang1,c, Jianxun Gong1,d and Yuehui He2, e 1Key Laboratory of Materials Design and Preparation Technology of Hunan Province, School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, PR China 2State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, PR China asanyxyf@163.com, b594449531@qq.com, c517420957@qq.com, dgong309@tom.com, eyuehui@mail.csu.edu.cn Keywords: Overlaying alloy, Vanadium, Wear resistance, Crack Abstract.
Materials and methods Electrode with low hydrogen CaCO3–CaF2–SiO2 slag system was produced using 4.0mm H08A core wire.
With the right size of matrix and high hardness of small globular carbide particle (mainly contains VC, HV2600), the carbides can reduce wear weight loss on itself and protect the substrate, so the material of wear performance is obviously improved [9].
Welding Journal Vol. 74(1995), p. 269-278 [2] Zhandong Chang: Researching on the welding technology of squeeze (Huazhong University of Science and Technology, Wuhan 2006) [3] Zhihui Wang, Dingyong He, Changli Yu.
Materials Science and Engineering A Vol. 254(1998), p. 282-295 [9] Haifeng Liu, Yaohui Liu, Sirong Yu.
Online since: October 2010
Authors: Yi Chun Sung, Ming Hwa Jen, Feng Chi Hsu, Che Kai Chang
The nanoparticles SiO2 (Nanostructured & Amorphous Materials, Inc.
Li, Fatigue response of hybrid magnesium/carbon-fiber/PEEK nanocomposite laminates at elevated temperature, Journal of JSEM, 7, Special Issue, pp. 56-60, 2007
Wu, Manufacturing and mechanical response of nanocomposite laminates, Composites Science and Technology, 65, pp. 775-779, 2005
Chen, PEEK composites reinforced by nano-sized SiO2 and Al2O3 particulates, Materials Chemistry and Physics, 90, pp.185-195, 2005
Callister Jr, Materials Science and Engineering: An Introduction, 6th ed., Wiley, New York, USA, 2003.
Online since: October 2010
Authors: Wei Yao, Fu Dong Lin, Ting Xie, Jian Wei Yu, Yan Guo Yin
Coating material is made from adhesive, curing agents, solid lubricatings and diluent.
Acknowledgements This work was financially supported by the Natural Science Foundation of China (Grant No.50975072) and the key research project of Chinese Ministry of Education (Grant No.108156).
Zhang: Materials Science and Engineering Vol. 424(2006), p. 340 [8] J.
Zhang: Journal of Materials Processing Technology Vol. 182(2007), p. 146 [9] M.
Liu: Materials for Mechanical Engineering (In Chinese) Vol. 27(9) (2003), p. 21
Online since: December 2014
Authors: Wei Lv, Bo Huang, Rui Chun Liu, Xin Yu Wang, Qiang Gao
Quan-Guo Zhang et Henan Agricultural University who developed the combustion of coal gangue layer burning biomass as the main raw material.
Bo-yu Zhou ect were studied biomass briquette molding system of waterproof material wet low pressure.
(3) Improve and enhance the existing biomass briquette molding technology and equipment to achieve the overall technical standardization and supporting technologies. 4 Bio-briquette binder Pulverized coal binder is to bond together, after forming to ensure coal briquette has a specific shape and properties of powdered or liquid secondary raw materials.
In the silicon-containing base material and process of the alkali silicate and generated (Na2SiO4) are substances having adhesive properties.
Crop straw biomass briquette processing research[J].Journal of Shanxi University of Science Technology, 2013, 31(1): 1-4
Online since: April 2015
Authors: Ye Feng Bao, Hong Xiang Xu, Kè Yang, Ke Yang
During the slurry abrasive wear process, the erosion damage of materials can be increased due to the influence of wear, and vice versa [1].
Experimental Materials and Methods The core wire produce using martensite stainless steel with diameter of 4.0mm and the electrode coating is composed of mineral powder and alloy powder.
Bao, Analysis of nitrogen-alloying deposited material of 1Cr13NbTi stainless steel, Trans.
Li, Effects of Nb, V, and W on Microstructure and Abrasion Resistance of Fe-Cr-C Hardfacing Alloys, Welding Journal. 89(2010) 133-139
Vilar, A model for the abrasive wear of metallic matrix particle-reinforced materials, Wear. 254(2003) 625-634.
Online since: March 2013
Authors: Payodhar Padhi, Sachikanta Kar
STUDY OF PARTICLE DISTRIBUTION IN AL-SIC PARTICULATE COMPOSITE BY RANDOM MOTION OF MOULD Payodhar Padhi1,a, Sachikanta Kar 2,b 1 Konark Institute of Science & Technology At: Technopark, Po: Jatni, Dist: Khurdha,Odisha, India 2 Central ToolRoom & Training Centre B-36,Chandaka Industrial Area, KIIT,Bhubaneswar,Odisha,India a payodharpadhi@gmail.com , b skkarcttc@gmail.com Keywords: Random rotation, composite, MMC, Al-matrix, SiC, Particle distribution Abstract: Synthesis of Al metal matrix composites (MMCs) with ceramic particulate reinforcements via the casting route is associated with the problem of non-uniform distribution of particulate.
Experimental Procedure Materials Commercial Aluminium was used as matrix material for the present study.
Density measurements Material % Vol fractions of SiCp Density (gm/cm3) Average density (gm/cm3) Al/SiCp 0 2.69 2.68 2.69 2.69 2.68 2.69 10 2.70 2.71 2.74 2.74 2.76 2.73 15 2.72 2.79 2.78 2.76 2.77 2.75 20 2.78 2.81 2.79 2.77 2.82 2.79 30 2.85 2.88 2.79 2.86 2.87 2.81 65 2.87 2.98 2.87 2.96 2.98 2.93 The density of the composite confirms to the expected trend i.e. more the volume fraction of particulates the higher is the density of the composite.
Deepak Dwivedi, Lakhvir Singh, Vikas Chawla, Development of Aluminium Based Silicon Carbide Particulate Metal Matrix Composite, Journal of Minerals & Materials Characterization & Engineering, 8(2009) 455-467
Metal matrix composites – From science to technological significance.
Online since: August 2014
Authors: Anna Šmeringaiová, Peter Šmeringai
Bičejová, Water Jet Technology Head Vibration Generation due to Selected Technology Parameters Fluctuation Effect during Alloy Cutting, Applied Mechanics and Materials 308 (2013) 81-86
Čačko, Experimental Measurement and Examination of Independent and Combined Interaction of Vibrodiagnostic and Tribotechnical Methods, Applied Mechanics and Materials 308 (2013) 51-56
Pandová, Optimization of heat treatment bearings rings with goal to eliminate deformation of material, Chemické listy 105 (2011) 459-461
Rimár, Monitoring of Vibrations in the technology of AWJ, Key Engineering Materials 496 (2012) 229-234
Haľko, Design strength calculation of cycloidal lantern gear, (2013), BarSU Herald Scientific and practical journal: Physical and Mathematical Sciences: Engineering Sciences, p. 58-65
Online since: February 2012
Authors: Xiao Jing Li, Jun Su, Pei Xin Qu
School of Information & Engineering, Henan Institute of Science and Technology, Xinxiang,453003, China asujunhnpi@126.com, bhnpilxj@126.com, cqupeixin@sina.com Keywords: Post treatment, tensile strength, selective laser sintering.
In this study, author used the coated sand casting as the material of selective laser sintering experiment, studied the processing temperature and time on the mechanical properties of post-processing, and the influence on gas-forming property and collapsibility of the pieces.
In this paper, use the coated sand casting as the material of selective laser sintering experiment, studied the processing temperature and time on the mechanical properties of post-processing, and the influence on gas-forming property and collapsibility of the pieces.
Applied Surface Science.
Journal of Cleaner Production.
Online since: November 2011
Authors: Jin Cheng Mao, Wen Yu Yang
Distributed Contact Model for Indeterminate Grasp Force Analysis towards Heavy-duty Manipulation Jincheng Mao and Wenyu Yang State Key Laboratory of Digital Manufacturing Equipment & Technology Huazhong University of Science and Technology Wuhan, Hubei 430074, China stupidm@gmail.com Keywords: contact model; grasp; heavy-duty manipulation; indeterminate; Abstract.
(9) Assuming t denotes the thickness of deformation area, the normal strain can be written as: (10) Based on the material mechanics, the normal stress can be written as: (11) The lumped contact forces and torques can be derived from distributed contact stress: (12) (13) Here, the approximately equivalent formulations is proposed to describe the distributed contact forces and contact deformations.
Bicchi, “On the closure properties of robotic grasping,” International Journal of Robotics Research, vol.14(4), pp. 319–334, August1995
Wright, “Friction, stability and the design of robotic fingers,” The international journal of robotics reaseach. vol.5(4), pp. 20–37, December 1986
Montana, “The kinematics of contact and grasp,” International Journal of Robotics Research, vol. 7( 3), pp. 17–25, June 1988
Online since: February 2011
Authors: Wei Huang, Jun Qiu, Xiao Hui Zhu
Fig.2 constrains and loads of the whole model Fig.3 pillar Loading of methodⅠ In accordance with the above loading mode the results of finite element analysis of the results were shown in table 1: Table 1 Main results confluence Maximum stress () Deformation to the maximum displacement X () Deformation to the maximum displacement Y () Deformation to the maximum displacement Z () Deformation of the overall maximum displacement () 3.49 3.98 0.961 1.173 4.078 The analysis results can be concluded as follows: (1) The maximum equivalent stress is much less than the limit strength of the material 300MPa (2) X displacement is the major factor to impact the overall displace, that is to say that static rigidity factor is the X maximum displacement. 3 The Choosing Shape Method Design on the Pillar Structure To large mechanical structure optimization problems, especially in large, complex spatial structure, its internal structures optimized iteratively is very difficult.
Acknowledgments The author gratefully acknowledges the support provided by China Guangxi Natural Science Foundation (Grant No. 2010GXNSFD013003).
Research and Development, 2002, 44(3):15 [3] Hongjin Chen: Practical Handbook of metal cutting, edited by Journal of Machine Tools &Manufacture.2005 [4] Shanghai Institute of Mechanical Engineering.
Tabellenbuch Metall, edited by Journal of Machine Tools &Manufacture.2005 [5] Zhang Xueling, Yanshen Xu,Weihong Zhong: Research on structural optimization method in design of NC machine tool bed based on dynamic analysis by FEM.
Journal of Mechanical Strength. 2005, 27(3):353-357
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