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Online since: October 2010
Authors: Jian Xin Kuang, Xin Heng Wang, An Min Liu, Hu Jun Zhao
Testing Materials and Methods
Testing material is 4Cr5MoSiVl steel (H13).
This can enhance the binding strength and density between the oxide film and the substrate materials.
Wang: Journal of materials science and engineering, (1998)No.6,pp.13-16.
Yuan: Journal of rare earths,(1999)No.17,pp. 42-45.
Hong: Materials for mechanical engineering,(2000)No.1,pp.17-19.
This can enhance the binding strength and density between the oxide film and the substrate materials.
Wang: Journal of materials science and engineering, (1998)No.6,pp.13-16.
Yuan: Journal of rare earths,(1999)No.17,pp. 42-45.
Hong: Materials for mechanical engineering,(2000)No.1,pp.17-19.
Online since: September 2013
Authors: Shu Sheng Bi, Shi Xing Fang, Shi Hao Wang
We adopt impulse type high voltage discharge device, and use counter electrodes that are made of materials that can resist high temperature and conduct heat and electricity or ceramic conductors to discharge.
Since we have found that superconducting materials are about 100K, devices can only work with liquid nitrogen as coolants.
Moreover, because the temperature of the back of aero-engines is relatively high, the low temperature requirement of superconducting materials can not be easily met.
Therefore, how to put a coolant pipeline outside superconducting materials is also a problem that needs to be solved.
Chinese and Foreign Science and Technology of Ships, 1994, No. 2
Since we have found that superconducting materials are about 100K, devices can only work with liquid nitrogen as coolants.
Moreover, because the temperature of the back of aero-engines is relatively high, the low temperature requirement of superconducting materials can not be easily met.
Therefore, how to put a coolant pipeline outside superconducting materials is also a problem that needs to be solved.
Chinese and Foreign Science and Technology of Ships, 1994, No. 2
Online since: November 2013
Authors: Ľuboslav Straka
All of these characteristics can be obtained with an effective design and with a careful choice of materials and construction technologies.
Nikolakopoulos, A Survey on Pneumatic Muscle Actuators Modeling, Journal of Energy and Power Engineering 6, p. 1442-1452, 2012
Kreheľ, Evaluation of capability of measuring device on the basis of diagnostics, Applied Mechanics and Materials, Vol. 308, p. 69-74, 2013
Mižáková, Operating modes of pneumatic artificial muscle actuator, Applied Mechanics and Materials.
Leephakpreeda, Study on mechanical behaviors of pneumatic artificial muscle, International Journal of Engineering Science, Vol. 48, p. 188–198, 2010
Nikolakopoulos, A Survey on Pneumatic Muscle Actuators Modeling, Journal of Energy and Power Engineering 6, p. 1442-1452, 2012
Kreheľ, Evaluation of capability of measuring device on the basis of diagnostics, Applied Mechanics and Materials, Vol. 308, p. 69-74, 2013
Mižáková, Operating modes of pneumatic artificial muscle actuator, Applied Mechanics and Materials.
Leephakpreeda, Study on mechanical behaviors of pneumatic artificial muscle, International Journal of Engineering Science, Vol. 48, p. 188–198, 2010
Online since: June 2014
Authors: Jian Zhong Cui, Yu Bo Zuo, Xing Fu, Xiang Jie Wang, Ping Wang, Lei Li
Study on the asymmetric hot rolling of aluminium alloy thick plate
Yubo Zuoa, Xing Fub, Jianzhong Cuic, Ping Wangd, Lei Lie, Xiangjie Wangf
1 Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, Liaoning, 110819, China
azuoyubo@epm.neu.edu.cn, bfuxingwww@sina.com, cjzcui@epm.neu.edu.cn
Keywords: Asymmetric hot rolling; Shearing deformation; 5182 alloy; Plate shape; Microstructure
Abstract.
Introduction Asymmetric rolling (ASR) method as one of the severe plastic deformation (SPD) processes has been extensively used to induce intense plastic strain to the bulk metallic materials in an attempt to fabricate the ultrafine grained materials which might possess the excellent mechanical properties[1-3].
Contrary to other SPD methods such as equal channel angular processing (ECAP) [4, 5], ASR potentially overcomes the limitation of producing fine grained materials with large dimensions due to its continuous feature in nature.
Sansome, Journal of Mechanical Working Technology, 6 (1982) 361-377
Cheng, Journal of Wuhan University of Technology-Mater.
Introduction Asymmetric rolling (ASR) method as one of the severe plastic deformation (SPD) processes has been extensively used to induce intense plastic strain to the bulk metallic materials in an attempt to fabricate the ultrafine grained materials which might possess the excellent mechanical properties[1-3].
Contrary to other SPD methods such as equal channel angular processing (ECAP) [4, 5], ASR potentially overcomes the limitation of producing fine grained materials with large dimensions due to its continuous feature in nature.
Sansome, Journal of Mechanical Working Technology, 6 (1982) 361-377
Cheng, Journal of Wuhan University of Technology-Mater.
Online since: April 2018
Authors: David Bricin, Zbyněk Špirit, Antonín Kříž
Experimental Material and Parameters of Sample Printing
Experimental material
The experimental material was a powder mix of WC-Co with a binder content of 30% and an average grain size of 6 microns.
Based on these results, other experiments are currently being prepared that focus on the processing of different carbide-based mixtures in order to deepen our knowledge of the behaviour of these materials when processed by additive SLM technology.
Comprehensive hard materials, Volume 1, Hardmetals.
Journal of Materials Processing Technology [online]. 2009, 209(8), 3840-3848 [cit. 2016-08-31].
Dostupné z: hhttp://www.sciencedirect.com/science/article/pii/S0167844207000407
Based on these results, other experiments are currently being prepared that focus on the processing of different carbide-based mixtures in order to deepen our knowledge of the behaviour of these materials when processed by additive SLM technology.
Comprehensive hard materials, Volume 1, Hardmetals.
Journal of Materials Processing Technology [online]. 2009, 209(8), 3840-3848 [cit. 2016-08-31].
Dostupné z: hhttp://www.sciencedirect.com/science/article/pii/S0167844207000407
Online since: March 2007
Authors: Hong Sheng Fang, Bing Zhe Bai, Zhun Li Tan, Fu Bao Yang
�5�� � � � � � �5�� � � � � � � � � � � ���5����
Fig.1 TTT curve and Mn enrichment ratio
vs temperature (Steel: 0.13C%, ~2%Mn)
The development of new-typed air-cooled
Mn-series bainitic steels
Fang Hong-Sheng
1,a, Tan Zhun-li
1,b
, Bai Bing-Zhe
1,c
, Yang Fu-Bao
2,d
1
Department of Materials Science and Engineering, Tsinghua University, Beijing,China
2
Beijing General Research Institute for Non-ferrous Metals, Beijing, China
a
fhs-dms@tsinghua.edu.cn, btzl02@mails.tsinghua.edu.cn,
c
bzbai@tsinghua.edu.cn, dyfubao@mail.grinm.com.cn
Key words: bainite; bainitic steel; strength and toughness; granular bainite; Carbide free bainite;
duplex structure
Abstract: The recent development and its superiorities of air-cooled Mn-series bainitic steels are
summarized based on the microstucture characters and strengthening and toughening principle.
Introduction The discovery of bainite [1] make it possible to produce materials with good combinations of strength and toughness without any heat treatment after hot working or with only a simple tempering.
Conclusions The significance of the development of the Air cooled Mn-series bainite steel can be summarized as: reducing both materials and production cost; good combination of strength and toughness; self-hardened by air cooling from hot working without additional quenching-tempering treatment; large savings in energy resources; environmental pollution is reduced; obviously there are many applications and bright prospects for air cooled Mn-series bainite steels in the future.
Journal of Iron and steel institute, 1958,188, p.101 [3] H S Fang et al., Metallic Materials Research, 1976, 4 (12), p.913 [4] L Yang, H S Fang, Z H Meng, Acta Metallurgica Sinica, 1992, 28 (1) A, p.16 (in Chinese) [5] L J Habraken, Revue de Metallurgie, 1956, 53, p.930
And Eng.,2001, 30(Supp.), p.113 [14] H S Fang, D Y Liu et al., Journal of Iron and Steel Research, 2001,13(3), p.31-36(in Chinese) [15] H S Fang, Y K Zheng et.al., SEAISI qurterly , 1991 , 20 (3), p.30
Introduction The discovery of bainite [1] make it possible to produce materials with good combinations of strength and toughness without any heat treatment after hot working or with only a simple tempering.
Conclusions The significance of the development of the Air cooled Mn-series bainite steel can be summarized as: reducing both materials and production cost; good combination of strength and toughness; self-hardened by air cooling from hot working without additional quenching-tempering treatment; large savings in energy resources; environmental pollution is reduced; obviously there are many applications and bright prospects for air cooled Mn-series bainite steels in the future.
Journal of Iron and steel institute, 1958,188, p.101 [3] H S Fang et al., Metallic Materials Research, 1976, 4 (12), p.913 [4] L Yang, H S Fang, Z H Meng, Acta Metallurgica Sinica, 1992, 28 (1) A, p.16 (in Chinese) [5] L J Habraken, Revue de Metallurgie, 1956, 53, p.930
And Eng.,2001, 30(Supp.), p.113 [14] H S Fang, D Y Liu et al., Journal of Iron and Steel Research, 2001,13(3), p.31-36(in Chinese) [15] H S Fang, Y K Zheng et.al., SEAISI qurterly , 1991 , 20 (3), p.30
Online since: May 2014
Authors: Kekeli Kpogan, Yendoubouam Tampango, Hamid Zahrouni, Michel Potier-Ferry, Hachmi Ben Dhia
They added an additional term to the elastic / plastic strain rate decomposition which represents the local shortening of a material segment when it becomes wavy due to buckling.
The elastic constants of the material are E=210MPa (the Young’s modulus) and =0.3 (the Poisson’s ratio).
Rateau, The arlequin method as a flexible engineering design tool, International Journal for Numerical Methods in Engineering. 62 (2005) 1442-1462
Potier-Ferry, Méthode asymptotique numérique, Hermès Science Publications, 2007
Buessler, Coupled and uncoupled approaches for thin cold strip buckling prediction, International Journal of Material Forming. 2 (2009) 833-836
The elastic constants of the material are E=210MPa (the Young’s modulus) and =0.3 (the Poisson’s ratio).
Rateau, The arlequin method as a flexible engineering design tool, International Journal for Numerical Methods in Engineering. 62 (2005) 1442-1462
Potier-Ferry, Méthode asymptotique numérique, Hermès Science Publications, 2007
Buessler, Coupled and uncoupled approaches for thin cold strip buckling prediction, International Journal of Material Forming. 2 (2009) 833-836
Online since: June 2013
Authors: Xiang Dong Peng
The first is to reduce the energy, automobile, steel, transportation, chemical industry, building materials and other high-carbon industry arising out of the industrial chain, these industries on downstream industries "low carbon", followed by adjustment of high-carbon industrial structure.
The Applied Science,vol.20,2010,pp.110 -113
Communist Party Journal, vol.5,2010, pp.55-62
A New Era of Science and Technology. 2005
Beijing: Science Press, 2006
The Applied Science,vol.20,2010,pp.110 -113
Communist Party Journal, vol.5,2010, pp.55-62
A New Era of Science and Technology. 2005
Beijing: Science Press, 2006
Online since: September 2014
Authors: Yu Xiong, Jun Cao, Li Sha Liu
Management Science Vol.54(2008)p.1731–1746
Management Science.Vol.53( 2007), p. 241–259
Strategic Management Journal Vol.24 (2003) p. 293–316
Management Science Vol.56(2010), p. 536–552
Key Engineering Materials Vol.572 (2014) ,p. 695-698.
Management Science.Vol.53( 2007), p. 241–259
Strategic Management Journal Vol.24 (2003) p. 293–316
Management Science Vol.56(2010), p. 536–552
Key Engineering Materials Vol.572 (2014) ,p. 695-698.
Online since: December 2012
Authors: Xiao Jun Wen, Chang Qun Duan, Da Chao Zhang
Materials and methods
Soil sample.
Acknowledgements This work was financially supported by the Provincial Education Department of Jiangxi (GJJ09520), the National Natural Science Foundation of China (50904029).
References [1] Haiyan Chu, Zhengao Li, Zubin Xie, Jianguo Zhu, Hongzhi Cao: ENVIRONMENTAL SCIENCE, Vol. 21(6) (2000), p. 28 (in Chinese)
[2] Rechcigl J E, Sparks D L: Communications in Soil Science and Plant Analysis, Vol. 16(7) (1985), p. 653 [3] Eville Gorham: Environmental Science and Policy, Vol. 1 (1998), p. 153 [4] Egiarte G, Arbestain MC, Rulz-Romera E, Pinto M: Chemosphere, Vol. 65(11) (2006), p. 2456 [5] ACSSSC (Agrochemistry Commission, soil science society of China): Routine methods forsoil and agrochemical analyses (Science Press, Beijing 1983) (in Chinese)
[6] Jili He, Gang Long, Huang Yun: Reaearch on regularity of distribution of acid rain in JiangXi province,” (China Environmental Science Press, Beijing 2007) (in Chinese)
Acknowledgements This work was financially supported by the Provincial Education Department of Jiangxi (GJJ09520), the National Natural Science Foundation of China (50904029).
References [1] Haiyan Chu, Zhengao Li, Zubin Xie, Jianguo Zhu, Hongzhi Cao: ENVIRONMENTAL SCIENCE, Vol. 21(6) (2000), p. 28 (in Chinese)
[2] Rechcigl J E, Sparks D L: Communications in Soil Science and Plant Analysis, Vol. 16(7) (1985), p. 653 [3] Eville Gorham: Environmental Science and Policy, Vol. 1 (1998), p. 153 [4] Egiarte G, Arbestain MC, Rulz-Romera E, Pinto M: Chemosphere, Vol. 65(11) (2006), p. 2456 [5] ACSSSC (Agrochemistry Commission, soil science society of China): Routine methods forsoil and agrochemical analyses (Science Press, Beijing 1983) (in Chinese)
[6] Jili He, Gang Long, Huang Yun: Reaearch on regularity of distribution of acid rain in JiangXi province,” (China Environmental Science Press, Beijing 2007) (in Chinese)