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Online since: February 2011
Authors: Marcello Cabibbo
Strengthening Evaluation
in a composite Mg-RE Alloy using TEM
Marcello Cabibbo
Department of Mechanical Engineering, Università Politecnica delle Marche, 60131-Ancona, Italy
email: m.cabibbo@univpm.it
Keywords: Mg-RE alloy, composite, strengthening, TEM, compression
Abstract.
Introduction The increasing demand on lightweight materials in aerospace, automotive, electronics and other technological applications, makes the magnesium alloys an attractive metallic material [1, 2].
One of the key advantage is also on the possibility of shaping the SiC particles by standard metallurgical processes such as forging, rolling, extrusion [26,27].
After compression, twins were observed; grain and cell boundaries are by definition all over the microstructure in a polycrystalline metallic material.
Liholt, in: Deformation of Multi-phase and Particle Containing Materials, edited by.
Introduction The increasing demand on lightweight materials in aerospace, automotive, electronics and other technological applications, makes the magnesium alloys an attractive metallic material [1, 2].
One of the key advantage is also on the possibility of shaping the SiC particles by standard metallurgical processes such as forging, rolling, extrusion [26,27].
After compression, twins were observed; grain and cell boundaries are by definition all over the microstructure in a polycrystalline metallic material.
Liholt, in: Deformation of Multi-phase and Particle Containing Materials, edited by.
Online since: September 2005
Authors: Naotake Noda, X.J. Zheng, S.F. Deng, Yi Chun Zhou
Noda 3
1
Key Laboratory for Advanced Materials and Rheological Properties, Ministry of Education,
Xiangtan University, Xiangtan, 411105, China
2
Faculty of Material & Photoelectronic Physics, Xiangtan University, Xiangtan, 411105, China
3
Department of Mechanical Engineering Shizuoka University Hamamatsu, Japan
zhengxuejun@xtu.edu.cn, sfdeng@xtu.edu.cn, zhouyc@xtu.edu.cn, tmnnoda@ipc.shizuoka.ac.jp
Keywords: Piezoelectric thin films; Thermal shock; Thermal fatigue; Pulsed laser irradiation; X-ray
diffraction; Grain effect; Ferroelectric degradation; Crack
Abstract.
FE thin film material has developed rapidly in recent years due to its wide application [1,2].
Wu: Measurement Technology of Materials analysis -X-Ray Diffraction and Electron Microscope (Harbin institute of technology press, Harbin 1998). 16.
FE thin film material has developed rapidly in recent years due to its wide application [1,2].
Wu: Measurement Technology of Materials analysis -X-Ray Diffraction and Electron Microscope (Harbin institute of technology press, Harbin 1998). 16.
Online since: July 2014
Authors: Peng Yi Wei, M.R. Bayati
., Pengyi WEI
Department of Materials Science and Engineering,
North Carolina State University, Raleigh, NC 27695, United States
email: pengyiwei5101@sina.com
Keywords: Sulfur; Iron-base alloys; Analytical method; Summary
Abstract.
The key for using ICP-AES method to detect sulfur is the pre-processing of samples.
[4] Kunio Takada, Tetsuya Ashino, Yukitoshi Morimoto, Hisao Yasuhara, Mayuko Kurosaki and Kenji Abiko, Determination of Trace Amounts of Sulfur in High-Purity Iron by Infrared Absorption after Combustion: Removal of Sulfur Blank, Materials Transactions, JIM, Vol,41,No. 1(2000)pp. 53 to 56
[10] Jianhuan Wei, Huafeng Sun, Shengjie Yang, the cycle measurement of sulfur blank value with the CS-444 infrared ray carbon sulfur analyzer, Advanced Materials Research, Vals.399-401(2012)pp2173-2176
The key for using ICP-AES method to detect sulfur is the pre-processing of samples.
[4] Kunio Takada, Tetsuya Ashino, Yukitoshi Morimoto, Hisao Yasuhara, Mayuko Kurosaki and Kenji Abiko, Determination of Trace Amounts of Sulfur in High-Purity Iron by Infrared Absorption after Combustion: Removal of Sulfur Blank, Materials Transactions, JIM, Vol,41,No. 1(2000)pp. 53 to 56
[10] Jianhuan Wei, Huafeng Sun, Shengjie Yang, the cycle measurement of sulfur blank value with the CS-444 infrared ray carbon sulfur analyzer, Advanced Materials Research, Vals.399-401(2012)pp2173-2176
Online since: November 2016
Authors: Yi Han, Tong Guang Zhai, Hiromi Nagaumi, Gong Wang Zhang, Yi Xu, Chad M. Parish
Parish3,e and Tongguang Zhai1,f *
1Department of Chemical and Materials Engineering, University of Kentucky, 177 F.
China 3Microscopy Group, Materials Science & Technology Division, Oak Ridge National Laboratory, 1 Bethel Valley Rd., Building 4515, Rm. 191, Oak Ridge, TN 37831-6064, USA agongwang.zhang@uky.edu, bzhanghai888jp@yahoo.cn, chanyi7742@163.com, dxu_y@sinr.cn eparishcm@ornl.gov, ftongguang.zhai@uky.edu Keywords: Al-Mg-Si-Cu aluminum alloy, Mn-containing dispersoids, homogenization, recrystallization, Mn content.
Homogenization heat treatment, which is an early processing stage and carried out directly after casting, is particularly critical, since it plays a key role in determining the microstructural evolution during subsequent processing steps.
Gottstein, Physical Foundations of Materials Science, Springer, Berlin (1996).
China 3Microscopy Group, Materials Science & Technology Division, Oak Ridge National Laboratory, 1 Bethel Valley Rd., Building 4515, Rm. 191, Oak Ridge, TN 37831-6064, USA agongwang.zhang@uky.edu, bzhanghai888jp@yahoo.cn, chanyi7742@163.com, dxu_y@sinr.cn eparishcm@ornl.gov, ftongguang.zhai@uky.edu Keywords: Al-Mg-Si-Cu aluminum alloy, Mn-containing dispersoids, homogenization, recrystallization, Mn content.
Homogenization heat treatment, which is an early processing stage and carried out directly after casting, is particularly critical, since it plays a key role in determining the microstructural evolution during subsequent processing steps.
Gottstein, Physical Foundations of Materials Science, Springer, Berlin (1996).
Online since: March 2011
Authors: Jian Hua Zhang, Shou Shan Jiang
Definition of Boundary Conditions and Dynamic Analysis
of Rocket Sled and Turntable
Zhang Jianhua1, a, Jiang Shoushan2,b
1 Institute of Science, Chang’An University Xi'an, China
2 Institute of Mechanical Engineering,Northwestern Polytechnical University,Xi’an,China
azhangjianh@chd.edu.cn, bjiangshoushan@yahoo.com.cn
Keywords: Rocket Sled;Multibody System Dynamics Analysis(MDA); Finite Element Analysis (FEA);Boundary Condition; Simulation; Rail Irregularity
Abstract.
In other words, only the key parts of sled are dealt with flexible bodys, can accurate dynamic simulation results be got correctly.
ADAMS MD A ANSYS F E A Inducting the FBM to ANSYS by the special interface Defining elements, material properties, meshing Outputing .mnf files by Macro command Doing statics, transient dynamics spectral analysis Outing the results of FEA Inducting the model created by Pro/E to ADAMS2005 Defining rigid body’s kinematic pair and constraits Inputting modal neutral files Creating RFCM, adding boundary conditions Outputting the results of MDA Creating Assembly ly Model in Pro/E Fig.1 Procedure of the Joint Simulation of Pro/E,ADAMS,ANSYS Creating Rigid-Flexible Coupling Model The Necessary Assumptions to Simplify the Model.
In other words, only the key parts of sled are dealt with flexible bodys, can accurate dynamic simulation results be got correctly.
ADAMS MD A ANSYS F E A Inducting the FBM to ANSYS by the special interface Defining elements, material properties, meshing Outputing .mnf files by Macro command Doing statics, transient dynamics spectral analysis Outing the results of FEA Inducting the model created by Pro/E to ADAMS2005 Defining rigid body’s kinematic pair and constraits Inputting modal neutral files Creating RFCM, adding boundary conditions Outputting the results of MDA Creating Assembly ly Model in Pro/E Fig.1 Procedure of the Joint Simulation of Pro/E,ADAMS,ANSYS Creating Rigid-Flexible Coupling Model The Necessary Assumptions to Simplify the Model.
Online since: December 2012
Authors: J. Zhang, J.G. Yang, W. Qin, Z.G. Xu, H. Li
Xu2
1 School of Mechanical Engineering, Shanghai Jiao Tong University,
Shanghai 200240 P.
The authors established a dynamic production scheduling model in correspondence with the fault disturbance and set the raw material supply meet all the system demands including invariant task processing time and delivery time, and unequal efficiency of the parallel machines.
Acknowledgment This work was supported by the National High Technology Research and Development Program of China (No. 2012AA040907) and the Key Program of National Nature Science Foundation of China under Grant No.60934008.
The authors established a dynamic production scheduling model in correspondence with the fault disturbance and set the raw material supply meet all the system demands including invariant task processing time and delivery time, and unequal efficiency of the parallel machines.
Acknowledgment This work was supported by the National High Technology Research and Development Program of China (No. 2012AA040907) and the Key Program of National Nature Science Foundation of China under Grant No.60934008.
Online since: June 2013
Authors: Xue Zhang, Guang Chen
Introduction
Since client-oriented strategy becomes the key for enterprise to obtain the market competitive strength, the communication between enterprise and customer presents to be rapid, efficient and collaborative.
E.g. the building and machinery of enterprise, employees’ payment, raw material costs, promotion expenditures, etc., are separable costs which are afforded by enterprise, while costs of time and efforts of each participating party are inseparable costs whose quantification and distribution affect the contents and consensus of the treaty made by enterprise and customer.
[14] Liu F, Li S X, Liu S:Customer Requirements Collaborative Optimization Between Customers and Enterprises for Mass Customization and the Application, Chinese Journal of Mechanical Engineering, Vol.40, (2004), p.109-112.
E.g. the building and machinery of enterprise, employees’ payment, raw material costs, promotion expenditures, etc., are separable costs which are afforded by enterprise, while costs of time and efforts of each participating party are inseparable costs whose quantification and distribution affect the contents and consensus of the treaty made by enterprise and customer.
[14] Liu F, Li S X, Liu S:Customer Requirements Collaborative Optimization Between Customers and Enterprises for Mass Customization and the Application, Chinese Journal of Mechanical Engineering, Vol.40, (2004), p.109-112.
Online since: July 2013
Authors: Gang Chen, Xu Xiao Hu, Xin Rong Xu, Han Tao Chen
Plasmodium material of drive parts is alloy,size is 35 mm×35 mm×35 mm, the purpose of adding two pieces of adiabatic body on and under the plasmodium is to prevent heat diffusion, in case of influence the control accuracy.
The key to this control around a reference value upper and lower switching,reference value with the input and system change adaptively adjusted, therefore less demanding on the mathematical model, suitable for time-varying system, and upper and lower switching amplitude deviation step by step by reduced gradually.
REFERENCES [1]W.Perruquetti and J.P.Barbot:Sliding mode control in engineering:Marce DekkeVol.35(2005)No.1,p.102
The key to this control around a reference value upper and lower switching,reference value with the input and system change adaptively adjusted, therefore less demanding on the mathematical model, suitable for time-varying system, and upper and lower switching amplitude deviation step by step by reduced gradually.
REFERENCES [1]W.Perruquetti and J.P.Barbot:Sliding mode control in engineering:Marce DekkeVol.35(2005)No.1,p.102
Online since: August 2013
Authors: Jian Guo Yang, Xiao Li Ju, Sheng Ye
(3)
Where is the experimental heat transfer coefficient, W/(m2·k); is the inner diameter of tube, m; is the outside diameter of the tube, m; is the length of test section, m; is the steam saturation temperature, K; is the test section wall temperature, K;and is the thermal conductivity of the tube material, W/(m·k).
Acknowledgements This work was financially supported by Key Project of the National Eleventh-Five Year Research Program of China (2009BAA16B01).
Journal of Engineering Thermophysics, 2001, 22(6): 713-716 (In Chinese)
Acknowledgements This work was financially supported by Key Project of the National Eleventh-Five Year Research Program of China (2009BAA16B01).
Journal of Engineering Thermophysics, 2001, 22(6): 713-716 (In Chinese)
Online since: December 2012
Authors: An Na Wang, Mo Sha, Li Mei Liu, Mao Xiang Chu
Researches on New Fault Diagnosis Method for Process Industry Based on Improved SVM Reduction Algorithm
Anna Wanga, Mo Shab , Limei Liu and Maoxiang Chu
College of Information Science and Engineering, Northeastern University, Shenyang, 110819, China
awanganna@mail.neu.edu.cn, bdesert1979@163.com
Keywords: Fault Diagnosis, SVM, Reduction SVM.
Some key parameters such as the cross temperature at blast furnace top, pressure in blast furnace, material feeding velocity, CO2 percentage, venting quality, volume of blast, blast pressure and temperature, etc. are used to diagnose ten kinds of states mentioned above.
Some key parameters such as the cross temperature at blast furnace top, pressure in blast furnace, material feeding velocity, CO2 percentage, venting quality, volume of blast, blast pressure and temperature, etc. are used to diagnose ten kinds of states mentioned above.