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Online since: May 2011
Authors: Qing Xu Yao, Ming Chun Jia, Xiao Wei Wang, Jin Feng Men
Materials and methods
Material
The oil sample used in the experiments is turbine oil with real density measures 0.84g/cm3, and the kinetic viscosity is 46.9 cSt.
The nonwoven polypropylene (NWPP) fiber is purchased from Shanghai Xinluo Filter Material Company in China.
Spill Science & Technology Bulletin, Vol. 8(2003), p. 483–489
Journal of Hazardous Materials B131 (2006), p. 195–199
The nonwoven polypropylene (NWPP) fiber is purchased from Shanghai Xinluo Filter Material Company in China.
Spill Science & Technology Bulletin, Vol. 8(2003), p. 483–489
Journal of Hazardous Materials B131 (2006), p. 195–199
Online since: July 2011
Authors: Ling Zhao, Jing Yang
It can always solve those various problems in the production and management system and is also considered as a projective science and technology.
Data shows that: normally, sewers almost use 20% of their time for sewing, 61% for material handling and 19% for personal affairs, fatigue, and inevitable delay.
How to organize production materials, increase productivity by the greatest extent, improve product quality, lower the cost of production, under the environment of frequent changing kinds, needs our deeper research.
In fact, we generally take every ten materials needed as a transported unit, after 500 clothes produced every day, we can shorten about 600m by distance and reduce about 525s by time.
Beijing apparel of journals,2001(10):69.
Data shows that: normally, sewers almost use 20% of their time for sewing, 61% for material handling and 19% for personal affairs, fatigue, and inevitable delay.
How to organize production materials, increase productivity by the greatest extent, improve product quality, lower the cost of production, under the environment of frequent changing kinds, needs our deeper research.
In fact, we generally take every ten materials needed as a transported unit, after 500 clothes produced every day, we can shorten about 600m by distance and reduce about 525s by time.
Beijing apparel of journals,2001(10):69.
Online since: February 2011
Authors: Shao Mei Zheng, Cheng Zhao
Study on Active Screen Plasma Carburizing of Austenitic Stainless Steel
Shaomei Zheng1,2 ,a, Cheng Zhao1,b
1 Surface Engineering Laboratory, Qingdao University of Science and Technology, Qingdao, P,R,China, 266033
2College of Mechanical Engineering , Qingdao Technological University,Qingdao,P,R,China,266033
azsm197637@sohu.com, bC-zhao@126.com
Keywords: Active Screen Plasma Carburizing (ASPC); DC Plasma Carburizing (DCPC); Austenitic Stainless Steel; Sputtered Particles
Abstract.
The surface defects and process instabilities as arcing, edge and hollow cathode effects can be minimized or completely eliminated by the AS technique, with consequent improvements in surface quality and material properties [8].
Fig. 1 Schematic diagram of AS plasma carburizing system Materials.The material used in this study was AISI 304 with an average substrate hardness of 270 HV0.1.
Journal of Materials Processing Technology, Vol.168(2005),P189
The surface defects and process instabilities as arcing, edge and hollow cathode effects can be minimized or completely eliminated by the AS technique, with consequent improvements in surface quality and material properties [8].
Fig. 1 Schematic diagram of AS plasma carburizing system Materials.The material used in this study was AISI 304 with an average substrate hardness of 270 HV0.1.
Journal of Materials Processing Technology, Vol.168(2005),P189
Online since: October 2003
Authors: Jesús Toribio, E. Ovejero, Viktor Kharin
Journal Citation (to be inserted by the publisher)
Copyright by Trans Tech Publications
Mixed-Mode Stress-Corrosion Cracking of High-Strength Steel: the Role
of Cyclic Load History
J.
Experimental Procedure The material used was a cold drawn prestressing steel whose chemical composition was eutectoid (0.80 % C, 0.69 % Mn, 0.23 % Si, 0.012 % P, 0.009 % S, 0.265 % Cr, 0.060 % V, 0.004 % Al) and with Young modulus E = 199 GPa, yield strength σY = 1500 MPa and U.T.S. σR = 1760 MPa.
Numerical Modelling In this paper the effect of fatigue precracking is analysed by numerical modelling of the stress-strain state near the crack tip under plane-strain small-scale yielding in an elastoplastic material with kinematic strain-hardening whose characteristics correspond to the steel used in the experimental programme.
Acknowledgement Financial support of this work by the Spanish Ministry of Science and Technology (MCYT) and FEDER (Grant MAT2002-01831) is gratefully acknowledged.
Suresh: Fatigue of Materials (Cambridge University Press, Cambridge, 1991)
Experimental Procedure The material used was a cold drawn prestressing steel whose chemical composition was eutectoid (0.80 % C, 0.69 % Mn, 0.23 % Si, 0.012 % P, 0.009 % S, 0.265 % Cr, 0.060 % V, 0.004 % Al) and with Young modulus E = 199 GPa, yield strength σY = 1500 MPa and U.T.S. σR = 1760 MPa.
Numerical Modelling In this paper the effect of fatigue precracking is analysed by numerical modelling of the stress-strain state near the crack tip under plane-strain small-scale yielding in an elastoplastic material with kinematic strain-hardening whose characteristics correspond to the steel used in the experimental programme.
Acknowledgement Financial support of this work by the Spanish Ministry of Science and Technology (MCYT) and FEDER (Grant MAT2002-01831) is gratefully acknowledged.
Suresh: Fatigue of Materials (Cambridge University Press, Cambridge, 1991)
Online since: June 2015
Authors: Jedol Dayou, Mee Ching Ung, Rachel Fran Mansa, Coswald Stephen Sipaut
Fabrication and analysis of photoelectrochemical properties of dye sensitized solar cell using Local Borneon Natural Dye Extracts
Mee Ching Ung1,a, Rachel Fran Mansa1,b, Coswald Stephen Sipaut1,c, Jedol Dayou2,d
1Energy and Materials Research Group, School of Engineering and Information Technology, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, Malaysia.
2Energy, Vibration and Sound Research Group (e-VIBS), School of Science and Technology
Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, Malaysia.
Acknowledgement This research project is carried out by the researchers of Energy and Materials Research Group under Materials and Minerals Research Unit.
Baljiepalli, M.R.Pichika, Antiproliferative and apototic of the standardised extracts of Etlingera elatior on human colorectal carcinoma cells, Malaysian Journal of Chemistry, 11(1) (2009)136-142 [9] P.Larkin, Infrared and Raman Spectroscopy; Principles and Spectral Interpretation,Waltham, USA, 2011 [10] S.
Acknowledgement This research project is carried out by the researchers of Energy and Materials Research Group under Materials and Minerals Research Unit.
Baljiepalli, M.R.Pichika, Antiproliferative and apototic of the standardised extracts of Etlingera elatior on human colorectal carcinoma cells, Malaysian Journal of Chemistry, 11(1) (2009)136-142 [9] P.Larkin, Infrared and Raman Spectroscopy; Principles and Spectral Interpretation,Waltham, USA, 2011 [10] S.
Online since: December 2012
Authors: Bing Lin Hou, Chuan Jie Pan, Peng Yuan Li, Shu Juan Yang
Each flexible plate with a thickness of 30mm is jointed to the top and bottom flanges by welding, leaving 19 mm gap in any two adjacent flexible plates, as shown in figure 2.
1
2
3
4
Fig.2 Scheme of reference design for GS
(1— lower flange, 2— flexible plate, 3—upper flange, 4—thermal anchor)
This design has to be given up after we made a weld experiment on it because the material 316LN has defects and small voids due to nitrogen segregation and migration from base material after welding [3].
Therefore an alternative design is performed without changing the material property and the boundary size of the GS, as shown in the Fig. 3.
Special Devices for the Test of Full-size Fasteners In the ITER design, threaded fasteners (material: 316LN, inconel-718 and A286) are widely used in the supports.
The authors would like to express our gratitude to China International Nuclear Fusion Energy Program Execution Center, Ministry of Science and Technology.
Journal of Nuclear Materials, 2009, P 931-934 [4] B.L.
Therefore an alternative design is performed without changing the material property and the boundary size of the GS, as shown in the Fig. 3.
Special Devices for the Test of Full-size Fasteners In the ITER design, threaded fasteners (material: 316LN, inconel-718 and A286) are widely used in the supports.
The authors would like to express our gratitude to China International Nuclear Fusion Energy Program Execution Center, Ministry of Science and Technology.
Journal of Nuclear Materials, 2009, P 931-934 [4] B.L.
Online since: March 2014
Authors: Jürgen Bär, Stefan Seifert
Thermographic Investigation of Fatigue Crack Propagation
in a High-Alloyed Steel
Jürgen Bära * and Stefan Seifertb
Institute for Materials Science, Universität der Bundeswehr München,
Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany
ajuergen.baer@unibw.de, bstefan.m.seifert@gmail.com
Keywords: Fatigue, crack propagation, thermography, plastic zone.
Introduction Lock-in thermography is widely used to gather information about the deformation behavior of metallic materials under cyclic loading.
Volpp, Vollautomatische Durchführung von Ermüdungsrißausbreitungsexperimenten, Materials Testing, 43 (2001) 242-247
Harris: Stress Intensity Factors for Hollow Circumferentially Notched Round Bars, Journal of basic engineering, 89 (1967) 49-54
Introduction Lock-in thermography is widely used to gather information about the deformation behavior of metallic materials under cyclic loading.
Volpp, Vollautomatische Durchführung von Ermüdungsrißausbreitungsexperimenten, Materials Testing, 43 (2001) 242-247
Harris: Stress Intensity Factors for Hollow Circumferentially Notched Round Bars, Journal of basic engineering, 89 (1967) 49-54
Online since: October 2014
Authors: Chuan Ding, Jian Chun Zhang, Xue Qiang Liu, Xin Xing Feng
Gupta found that adding AAc in the N-isopropyl/AAm radiation graftedPET process can improve theefficiency of grafting [5], and endowmore properties to the material.
B. found that the use of AAc and acrylonitrilegrafted to LDPE and PET, increase the content of AAc in favor of the biodegradation of material increased after grafting [7].
EXPERIMENTAL Materials Plain knitting PET fabric (100g/m2)was supplied by ZhejiangXinjian Textiles Co., Ltd.
Effect of grafted AAc/AAm on thermal stability of PET TGA is one of the most favored methods for evaluating the thermal stability of polymeric materials.
Journal of Colloid and Interface Science, 1996, 178(1): 371-3
B. found that the use of AAc and acrylonitrilegrafted to LDPE and PET, increase the content of AAc in favor of the biodegradation of material increased after grafting [7].
EXPERIMENTAL Materials Plain knitting PET fabric (100g/m2)was supplied by ZhejiangXinjian Textiles Co., Ltd.
Effect of grafted AAc/AAm on thermal stability of PET TGA is one of the most favored methods for evaluating the thermal stability of polymeric materials.
Journal of Colloid and Interface Science, 1996, 178(1): 371-3
Online since: June 2013
Authors: Y.S. Kuo
Introduction
A201 aluminum alloy is an important structural material and possesses the highest mechanical strength among all the cast aluminum alloys.
The material of end chill block was low carbon steel, whose thickness was 2 times that of the plate casting.
Kuo, “Mechanical Properties and Porosity Content of A201 Aluminum Alloy Castings in Different Cooling Rate Sand Molds,” Advanced Materials Research, Vols. 154-155, pp.787-793, 2011
%Cu Alloy,” Materials Science and Engineering , A108, pp265-270, 1989
Seshadri, “Dimensioning of Risers for Long Freezing Range Aluminum Alloys,” AFS Cast Metals Research Journal, pp.77-82, June 1971.
The material of end chill block was low carbon steel, whose thickness was 2 times that of the plate casting.
Kuo, “Mechanical Properties and Porosity Content of A201 Aluminum Alloy Castings in Different Cooling Rate Sand Molds,” Advanced Materials Research, Vols. 154-155, pp.787-793, 2011
%Cu Alloy,” Materials Science and Engineering , A108, pp265-270, 1989
Seshadri, “Dimensioning of Risers for Long Freezing Range Aluminum Alloys,” AFS Cast Metals Research Journal, pp.77-82, June 1971.
Online since: July 2013
Authors: Yong Sheng Deng, Yong Zhang, Tao Zhou, Yong Sheng Zhou
(3) Having material in line-friction segment and having no material in other segments: Line friction can provide enough driving force, and the total running resistance is less than that under full-load working condition.
(4) Having no material in line-friction segment and having material in other segments: Line friction can provide the same driving force as the condition with no-load, and total running resistance is larger than that of no-load condition.
(2) Where, ——mass per unit length of conveyor belt, kg/m; ——mass per unit length of material, kg/m; ——the length of driving belt in driving segment, m; ——inclination angle of conveyor belt, π/180 rad; ——acceleration of conveyor, m/s2; ——mass per unit length of carrier roller in driving segment, kg/m; ——mass per unit length of driving belt, kg/m; ——equivalent mass per unit length of carrier roller, kg/m.
Because the lower branch is in the state of having no material, it cannot provide sufficient driving force
Peng: Journal of Northeastern University(Natural Science) Vol.19 No.3 (1998),p.195-199.
(4) Having no material in line-friction segment and having material in other segments: Line friction can provide the same driving force as the condition with no-load, and total running resistance is larger than that of no-load condition.
(2) Where, ——mass per unit length of conveyor belt, kg/m; ——mass per unit length of material, kg/m; ——the length of driving belt in driving segment, m; ——inclination angle of conveyor belt, π/180 rad; ——acceleration of conveyor, m/s2; ——mass per unit length of carrier roller in driving segment, kg/m; ——mass per unit length of driving belt, kg/m; ——equivalent mass per unit length of carrier roller, kg/m.
Because the lower branch is in the state of having no material, it cannot provide sufficient driving force
Peng: Journal of Northeastern University(Natural Science) Vol.19 No.3 (1998),p.195-199.