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Online since: November 2005
Authors: Yves Bréchet, Gary R. Purdy, Christopher R. Hutchinson, S.V. Subramanian, Hatem Zurob, G. Zhu
Martin d'Heres, BP 75, 38402 Cedex, France.
2
Department of Materials Science and Engineering, McMaster University, 1280 Main St.
West, Hamilton, ON, L8S 4L7, Canada. 3 School of Physics and Materials Engineering, Monash University, Clayton 3168, Vic., Australia.
The key to the present optimization problem is to determine the relative contributions of solute Nb and Nb(C,N) precipitates to the retardation of static recovery and recrystallization.
At the other extreme, when the solute content is very low, or when the driving force is large, the alloy behavior approaches that of the pure material and a small increase in driving force results in a large increase in boundary velocity.
West, Hamilton, ON, L8S 4L7, Canada. 3 School of Physics and Materials Engineering, Monash University, Clayton 3168, Vic., Australia.
The key to the present optimization problem is to determine the relative contributions of solute Nb and Nb(C,N) precipitates to the retardation of static recovery and recrystallization.
At the other extreme, when the solute content is very low, or when the driving force is large, the alloy behavior approaches that of the pure material and a small increase in driving force results in a large increase in boundary velocity.
Online since: October 2008
Authors: Vikram Jayaram, Lingappa Rangaraj, Canchi Divakar
Processing of Refractory metal Borides, Carbides and Nitrides
Lingappa Rangaraj
1,a, Canchi Divakar1,b and Vikram Jayaram
2,c
1Materials Science Division, National Aerospace Laboratories, Bangalore-560 017 India
2
Department of Materials Engineering, Indian Institute of Science, Bangalore-560 012 India
a
ranga@css.nal.res.in, bdivakar@css.nal.res.in, cqjayaram@materials.iisc.ernet.in
Keywords: TiB2, ZrB2, Composites, UHTC, Reactive hot pressing
Abstract
Transition metal borides, carbides and nitrides are candidates for very high temperature
applications.
A review of various processing techniques to fabricate dense monolithic and composite materials is presented.
However, the oxidation resistance of these materials is poor.
Hard Materials Vol. 4 (1993), p.29 [36] S.H.
Metals Hard Materials Vol. 22 [2-3] (2004), p.133 [64] B.
A review of various processing techniques to fabricate dense monolithic and composite materials is presented.
However, the oxidation resistance of these materials is poor.
Hard Materials Vol. 4 (1993), p.29 [36] S.H.
Metals Hard Materials Vol. 22 [2-3] (2004), p.133 [64] B.
Online since: September 2018
Authors: Fateh Mebarek-Oudina, Oluwole Daniel Makinde, Jawad Reza
Chemical Engineering Communications, 200(6) (2013) 836-852
Thermal Science and Engineering Progress, 2 (2017) 57–63
International Journal of Engineering Research in Africa, 28 (2017) 118-141
Multidiscipline Modeling in Materials and Structures, 12(4) (2016), 619-634
Engineering Science and Technology, 20 (4) (2017) 1324-1333
Thermal Science and Engineering Progress, 2 (2017) 57–63
International Journal of Engineering Research in Africa, 28 (2017) 118-141
Multidiscipline Modeling in Materials and Structures, 12(4) (2016), 619-634
Engineering Science and Technology, 20 (4) (2017) 1324-1333
Online since: January 2025
Authors: Ali I. Shehata, Omar Sami Abdelfatah, Yehia A. Eldrainy, Ahmed S. Shehata
Shehata4,d
1Mechanical Engineering Department, Faculty of Engineering, Pharos University,
Alexandria, Egypt
2Mechanical Engineering Department, Faculty of Engineering, Alexandria University,
Alexandria, Egypt
3Mechanical Engineering Department, College of Engineering and Technology, Arab Academy for Science, Technology and Maritime Transport, Alexandria, Egypt
4Marine Engineering Department, College of Engineering and Technology, Arab Academy for Science Technology and Maritime Transport, Alexandria, Egypt
aosamy624@yahoo.com, byeldrainy@adj.aast.edu, caliismail@aast.edu, da_samir@aast.edu
Keywords: Tornado wind turbine, Vertical-axis wind turbine, Model performance, CFD
Abstract.
Methodology The development of a Tornado wind turbine model comprises four key phases, as shown in Fig. 1: survey and data analysis, design and simulation, validation and verification, and result discussion.
Schijve, “Fatigue of structures and materials in the 20th century and the state of the art,” Aug. 2003. doi: 10.1016/S0142-1123(03)00051-3
Ghasempour, “CFD-based improvement of Savonius type hydrokinetic turbine using optimized barrier at the low-speed flows,” Ocean Engineering, vol. 202, Apr. 2020, doi: 10.1016/j.oceaneng.2020.107178
Methodology The development of a Tornado wind turbine model comprises four key phases, as shown in Fig. 1: survey and data analysis, design and simulation, validation and verification, and result discussion.
Schijve, “Fatigue of structures and materials in the 20th century and the state of the art,” Aug. 2003. doi: 10.1016/S0142-1123(03)00051-3
Ghasempour, “CFD-based improvement of Savonius type hydrokinetic turbine using optimized barrier at the low-speed flows,” Ocean Engineering, vol. 202, Apr. 2020, doi: 10.1016/j.oceaneng.2020.107178
Online since: February 2014
Authors: Hong Yan Chu, Lei Su, Xiao Lin Zhang, Rui Qing Shen, Li Gang Cai
Research of transferring characteristics of ink among rollers
Hong Yan CHU1,a, Xiao Lin ZHANG1,b *, Lei SU1,c, Rui Qing SHEN1,d,
and Li Gang CAI1,e
1College of Mechanical Engineering and Applied Electronics Technology,Beijing University of Technology, No.100, Pingleyuan, Chaoyang District, Beijing, China
achuhongyan@bjut.edu.cn, bzhangxiaolinishere@163.com, csuthunder@126.com, d984286139@emails.bjut.edu.cn, elgcai321@aliyun.com
Key words: Offset printing; Ink pressure; Velocity; Ink transfer ratio
Abstract: In order to improve the printing quality and know the process of ink transferring well, ink flowing among ink rollers is simulated by using CFX.
Solar Energy Materials & Solar Cells. 1 (2001) 399-407
Chemical Engineering Science. 13, (2003) 2857-2882
Chemical Engineering Science. 4(2006) 1146-1156
College of Mechanical Engineering and Applied Electronics Technology,Beijing University of Technology,2013
Solar Energy Materials & Solar Cells. 1 (2001) 399-407
Chemical Engineering Science. 13, (2003) 2857-2882
Chemical Engineering Science. 4(2006) 1146-1156
College of Mechanical Engineering and Applied Electronics Technology,Beijing University of Technology,2013
Online since: November 2011
Authors: Dong Xia Duan, Mao Zhong An, Fu Shao Li
Effects of sulfate-reducing bacteria on the corrosion of Q235
Fushao Li 1,3,a, Maozhong An 2, Dongxia Duan 3
1Chemistry and Chemical Engineering School, Qujing Normal University, Qujing 655011, China;
2Chemical Engineering School, Harbin Institute of Technology, Harbin 15001, China;
3State Key Laboratory for Marine Corrosion and Protection, Qingdao 266071, China
alifushao@126.com
Keywords: sulfate-reducing bacteria;microbiologically influenced corrosion; carbon steel
Abstract: Various corrosion media were prepared by dual-cells experimental setup, including fresh sterilized culture medium, culture medium with sulfate-reducing bacteria (SRB), and culture medium containing only SRB metabolites.
So, accordingly at the present work, we attempt to reveal how a specific SRB and SRB biofilm, via influencing the properties of FeSχ, influence the corrosion of iron steels in seawater, SRB strain was isolated from offshore sea-mud near Qingdao and carbon steel (Q235) selected from commercial supplies (a widely used metal structural material in China).
Methods and experiment 1.1 Materials All chemicals used were of analytical reagent grade, and Q235 was used to make corrosion coupons.
Schaschl, Elemental sulfur as a corrodent in deaerated neutral aqueous solutions, Materials Performance 7 (1980) 9-12
So, accordingly at the present work, we attempt to reveal how a specific SRB and SRB biofilm, via influencing the properties of FeSχ, influence the corrosion of iron steels in seawater, SRB strain was isolated from offshore sea-mud near Qingdao and carbon steel (Q235) selected from commercial supplies (a widely used metal structural material in China).
Methods and experiment 1.1 Materials All chemicals used were of analytical reagent grade, and Q235 was used to make corrosion coupons.
Schaschl, Elemental sulfur as a corrodent in deaerated neutral aqueous solutions, Materials Performance 7 (1980) 9-12
Online since: March 2020
Authors: Chun Fu Zhu, Guang Yu Zhao, Pei Feng Cheng
Study on the Main Characteristics of Reflective Cracking in the Asphalt Overlay on an Old Cement Pavement
Chunfu Zhu1,2,a, Peifeng Cheng1,b*, Guangyu Zhao1,2,c
1College of Civil Engineering, Northeast Forestry University, Harbin 150040, China
2College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin 150030, China
a463717100@qq.com, bcpf2006@163.com, c306324953@qq.com
Keywords: Composite pavement structure; Asphalt overlay; Coupling; crack; Working conditions; Vehicle load location
Abstract.
The planar surface dimensions, thickness, elastic modulus of the materials, and Poisson's ratio are as shown in Table 1 [20]. 2.2.
Compared with the asphalt concrete materials, cement concrete will be subjected to a larger contraction distortion in the event of a sudden drop in temperature, and the cement concrete pavement will stretch the asphalt overlay during the concretion process, producing large tensile strain in the overlay.
Sarbijan, Effects of loading, geometry and material properties on fracture parameters of a pavement containing top-down and bottom-up cracks, Eng.
Journal of Zhengzhou University (Engineering Science). 35(2014)120-123+128
The planar surface dimensions, thickness, elastic modulus of the materials, and Poisson's ratio are as shown in Table 1 [20]. 2.2.
Compared with the asphalt concrete materials, cement concrete will be subjected to a larger contraction distortion in the event of a sudden drop in temperature, and the cement concrete pavement will stretch the asphalt overlay during the concretion process, producing large tensile strain in the overlay.
Sarbijan, Effects of loading, geometry and material properties on fracture parameters of a pavement containing top-down and bottom-up cracks, Eng.
Journal of Zhengzhou University (Engineering Science). 35(2014)120-123+128
Online since: August 2014
Authors: Xiao Jing Zhu, Yi Shan Pan, Zhi Tang
Technology Principle and Application of Microseismic Monitoring Rockburst
Xiaojing Zhu1,a, Yishan Pan2,b , Zhi Tang3,c
1 School of Mechanics and Engineering ,Liaoning Technical University,Fuxin 123000,Liaoning,China 2 School of Mechanics and Engineering ,Liaoning Technical University,Fuxin 123000,Liaoning,China
3 School of Mechanics and Engineering ,Liaoning Technical University,Fuxin 123000,Liaoning,China
azhuxiaojing0608@163.com, bpanyish_cn@sina.com, ctangzhi0127@163.com
Keywords: rockburst; monitor; forecast; concentration analysis.
[3] K.Mogi.Study of the elastic shocks caused by the fracture of heterogeneous materials and its relation to earthquake phenomena,Bull[J].Earthquake Res.Inst,1962:125-173
Chinese Journal of Rock Mechanics and Engineering,2007,26(1):102–107.
Earthquake Engineering and Engineering Vibration,2006,26(3):264-266.
[17] Yishan Pan,Yangfeng Zhao,Jin Ma.Discussion on rockburst influenced by regional stress field in China[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(16):2847-2853.
[3] K.Mogi.Study of the elastic shocks caused by the fracture of heterogeneous materials and its relation to earthquake phenomena,Bull[J].Earthquake Res.Inst,1962:125-173
Chinese Journal of Rock Mechanics and Engineering,2007,26(1):102–107.
Earthquake Engineering and Engineering Vibration,2006,26(3):264-266.
[17] Yishan Pan,Yangfeng Zhao,Jin Ma.Discussion on rockburst influenced by regional stress field in China[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(16):2847-2853.
Online since: April 2013
Authors: Joaquim Simão, Maria Helena Sá, Nuno Leal, Zenaide Carvalho G. Silva
Materials and Methods
Rock Types Selection.
Arliguie: Penetration of chlorides in relation to the microcracking state into reinforced ordinary and high strength concrete, Materials and Structures 31(5) (1998) pp. 310-316
Simão: The role of salt fog on alteration of dimension stone, Construction and Building Materials 23(11) (2009) pp. 3321- 3327
Cardell: Rough and polished travertine building stone decay evaluated by a marine aerosol ageing test, Construction and Building Materials 24(8) (2010) pp. 1438-1448
Chau: A review of techniques for measurement of contact angles and their applicability on mineral surfaces, Minerals Engineering 22(3) (2009) pp. 213–219
Arliguie: Penetration of chlorides in relation to the microcracking state into reinforced ordinary and high strength concrete, Materials and Structures 31(5) (1998) pp. 310-316
Simão: The role of salt fog on alteration of dimension stone, Construction and Building Materials 23(11) (2009) pp. 3321- 3327
Cardell: Rough and polished travertine building stone decay evaluated by a marine aerosol ageing test, Construction and Building Materials 24(8) (2010) pp. 1438-1448
Chau: A review of techniques for measurement of contact angles and their applicability on mineral surfaces, Minerals Engineering 22(3) (2009) pp. 213–219
Online since: December 2011
Authors: Qing Kai Han, Hong Bin Ma, Bang Chun Wen, Hong Liang Yao
Model-Based Fault Diagnosis Approach for Rotor System with Unidentified Supporting Parameters
Hongliang Yao1,a, Hongbin Ma2,b , Qingkai Han1,cand Bangchun Wen1,d
1 School of Mechanical Engineering and Automation, Northeastern University, Shenyang, PR China,
2Bethune International Peace Hospital of PLA, Shijiazhuang, PR China
ahlyao@mail.neu.edu.cn(corresponding author), bmahongbin1977@gmail.com,
cqhan@mail.neu.edu.cn, dbcwen1930@vip.sina.com
Keywords: Rotating machinery, Model based diagnosis method, Fixed-interface modal synthesis method
Abstract.
(3) Measure the steady vibration signals of the un-fault rotor system, obtain the amplitude and phase information of the rotor system while using the key-phase signal as a reference
The nonlinearity in the rotor system is due to the rubber material property and the installation precision.
Journal of Mechanical Engineering, 43 (2007) 120-124 (In chinese) [8] Bachschmid, N., Pennacchi, P., Vania, A., Identification of multiple faults in rotor systems.
(3) Measure the steady vibration signals of the un-fault rotor system, obtain the amplitude and phase information of the rotor system while using the key-phase signal as a reference
The nonlinearity in the rotor system is due to the rubber material property and the installation precision.
Journal of Mechanical Engineering, 43 (2007) 120-124 (In chinese) [8] Bachschmid, N., Pennacchi, P., Vania, A., Identification of multiple faults in rotor systems.