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Online since: June 2014
Authors: Pyung Soo Kim, Eung Hyuk Lee, Mun Suck Jang, Ki Sun Song
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Should authors use tables or figures from other Publications, they must ask the corresponding publishers to grant them the right to publish this material in their paper.
Color figures are welcome for the online version of the journal.
Clem: submitted to Journal of Materials Research (2003) [5] P.G.
Chatzinikolaou, On-line fault detection techniques for technical systems: A survey, International Journal of Computer Science & Applications. 1 (2004) pp.12–30
Should authors use tables or figures from other Publications, they must ask the corresponding publishers to grant them the right to publish this material in their paper.
Color figures are welcome for the online version of the journal.
Clem: submitted to Journal of Materials Research (2003) [5] P.G.
Chatzinikolaou, On-line fault detection techniques for technical systems: A survey, International Journal of Computer Science & Applications. 1 (2004) pp.12–30
Online since: October 2008
Authors: Krzysztof Jan Kurzydlowski, Pawel Widlicki, Halina Garbacz, Piotr Wiecinski
Kurzydlowski d
Warsaw University of Technology, Faculty of Materials Science and Engineering,
Woloska 141, 02-507 Warsaw, Poland
e-mail: a pwidlicki@inmat.pw.edu.pl; b piotr.wiecinski@materials.pl; c haga@inmat.pw.edu.pl;
d kjk@inmat.pw.edu.pl
Keywords: severe plastic deformation (SPD), hydrostatic extrusion, 6082 aluminium alloys
Abstract.
Materials and methods The material used in this study was aluminium alloy 6082, which contains Mg, Mn and Si as the principle alloying elements, in the form of 19.5 mm diameter rod.
The hardness and strength of the HE processed materials were assessed by determining the HV0.2 microhardness and carrying out tensile tests applying a strain rate range of 10 -4 s-1.
Such a material is more susceptible to strain hardening than a material with strongly refined grains and a high dislocation density.
157-158) rok XXVIII (2007), p. 491-495 [5] K.J.Kurzydłowski, M.Richert, B.Leszczynska, H.Garbacz, W.Pachla; Microstructural Refinement under High Plastic Strain Rates during Hydrostatic Extrusion; Solid State Phenomena 114 (2006) p.117-122 [6] M.Lewandowska; Microstructure evolution in age-hardenable aluminium alloy during processing by hydrostatic extrusion; Journal of Microscopy 224 (2006) 34-37 [7] M.Lewandowska; Stability of second phase particles during processing by hydrostatic extrusion; Archives of Metallurgy and Materials 51 (2006) 569-574
Materials and methods The material used in this study was aluminium alloy 6082, which contains Mg, Mn and Si as the principle alloying elements, in the form of 19.5 mm diameter rod.
The hardness and strength of the HE processed materials were assessed by determining the HV0.2 microhardness and carrying out tensile tests applying a strain rate range of 10 -4 s-1.
Such a material is more susceptible to strain hardening than a material with strongly refined grains and a high dislocation density.
157-158) rok XXVIII (2007), p. 491-495 [5] K.J.Kurzydłowski, M.Richert, B.Leszczynska, H.Garbacz, W.Pachla; Microstructural Refinement under High Plastic Strain Rates during Hydrostatic Extrusion; Solid State Phenomena 114 (2006) p.117-122 [6] M.Lewandowska; Microstructure evolution in age-hardenable aluminium alloy during processing by hydrostatic extrusion; Journal of Microscopy 224 (2006) 34-37 [7] M.Lewandowska; Stability of second phase particles during processing by hydrostatic extrusion; Archives of Metallurgy and Materials 51 (2006) 569-574
Online since: September 2014
Authors: Tie Li Qi
The ingot with 25 kg is smelted and casted in vacuum induction furnace of University of Science and Technology Beijing, the ingot is rolled into 16 mm sheet by TMCP process after forging.
Table1 Chemical composition of experimental steels(mass. %) Types C Si Mn P S Als Nb Ti Ni Zr 1# 0.06 0.3 1.56 0.006 0.0043 0.03 0.04 0.01 0.32 0 2# 0.058 0.31 1.6 0.006 0.0042 0.04 0.038 0.011 0.3 0.01 3# 0.052 0.31 1.43 0.004 0.0048 0.036 0.041 0.012 0.37 0.02 Results and Discussions Low temperature toughness of base material and HAZ for different zirconium content steel The low temperature toughness at -60℃ of base materials and HAZ were shown as in Fig.1.
It was obvious that the low temperature toughness of 3# steel base material was the poorest.
Fig.1 Toughness of the base material and the HAZ for different heat input at -60 ℃ Influencing factors of inclusion morphology for base materials and HAZ The typical inclusion morphology in 2# and3 # steel containing different content zirconium was shown as in Fig. 2 and Fig.3.
Journal of University of Science and Technology BeiJing,32(2010): 195
Table1 Chemical composition of experimental steels(mass. %) Types C Si Mn P S Als Nb Ti Ni Zr 1# 0.06 0.3 1.56 0.006 0.0043 0.03 0.04 0.01 0.32 0 2# 0.058 0.31 1.6 0.006 0.0042 0.04 0.038 0.011 0.3 0.01 3# 0.052 0.31 1.43 0.004 0.0048 0.036 0.041 0.012 0.37 0.02 Results and Discussions Low temperature toughness of base material and HAZ for different zirconium content steel The low temperature toughness at -60℃ of base materials and HAZ were shown as in Fig.1.
It was obvious that the low temperature toughness of 3# steel base material was the poorest.
Fig.1 Toughness of the base material and the HAZ for different heat input at -60 ℃ Influencing factors of inclusion morphology for base materials and HAZ The typical inclusion morphology in 2# and3 # steel containing different content zirconium was shown as in Fig. 2 and Fig.3.
Journal of University of Science and Technology BeiJing,32(2010): 195
Online since: August 2009
Authors: Zi Dong Wang, Zhuo Fei Song, Yan Lin Wang
Study on Vibration Band Gap Characteristics of Phononic Crystal
Consisted of Ti and Rubber
WANG yanlin a, WANG zidong
b
and SONG zhuofeic
School of Materials Science & Engineering, University of Science & Technology Beijing, 100083
China
a
WYL1921@yahoo.com.cn, b wangzdg@263.net,
cSZF7870@163.com
Keywords:Ti and Rubber, phononic crystal, vibration band gap
Abstract::::The vibration band gaps of one dimensional phononic crystal of rod structure consisted
of Ti and Rubber were studied using the lumped-mass method and finite element simulation, the
influences of vibration band gap by the periodicity and volume fraction were discussed.
Vasseur [2] studied the material system including carbon fiber or fine carbon stick and epoxy resin, aluminum and resin et al.
Sigalas [3] studied the material system consisted of metal and resin matrix.
[2]Vasseur J O.et al.Complete acoustic band gaps in periodic fiber reinforced composite materials: the carbon/epoxy composite and some metallic systems[J].
Journal of Physics: Condensed Matter. 1994, 6: 8759-8770
Vasseur [2] studied the material system including carbon fiber or fine carbon stick and epoxy resin, aluminum and resin et al.
Sigalas [3] studied the material system consisted of metal and resin matrix.
[2]Vasseur J O.et al.Complete acoustic band gaps in periodic fiber reinforced composite materials: the carbon/epoxy composite and some metallic systems[J].
Journal of Physics: Condensed Matter. 1994, 6: 8759-8770
Online since: February 2016
Authors: E.S. Parfenova, Anna G. Knyazeva
Knyazeva1,2
1National Research Tomsk Polytechnic University, Institute of High Technology Physics, 2a Lenin Avenue, Building 11, Tomsk, 634050, Russia
2Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences, 2/4 pr.
Introduction Investigations of surface treatment process of materials by beams of charged particles are carried out by many authors [1-4].
The composition and structure, and, consequently, the surface properties of materials can be controlled owing to these methods.
In the literature, the thermoelastic waves caused by exposure to high-energy sources on the surface of materials attract the basic attention.
Knayzeva, Applied Mechanics and Materials, V. 756 (2015) 389-393
Introduction Investigations of surface treatment process of materials by beams of charged particles are carried out by many authors [1-4].
The composition and structure, and, consequently, the surface properties of materials can be controlled owing to these methods.
In the literature, the thermoelastic waves caused by exposure to high-energy sources on the surface of materials attract the basic attention.
Knayzeva, Applied Mechanics and Materials, V. 756 (2015) 389-393
Online since: March 2010
Authors: Li Fa Han, Sheng Guan Qu
Also, material's burnishing mechanism is discussed,
and the process parameters are optimized.
Theoretical density of NbC is 7.85g/cm3, and is close to the density of matrix material.
Acknowledgements: The work is supported by Key Project of National Natural Science Foundation of China (50135020) and the Open Foundation of Guangdong Province Key Laboratory of Metal New Material (2008001).
Xia, et al.: Material Science Forum Vol.471-472(2004), p. 790-794
[7] L.J.Hu, R.R.Hu: Journal of Xiangtan University Vol.16 (1994), P. 98-103.
Theoretical density of NbC is 7.85g/cm3, and is close to the density of matrix material.
Acknowledgements: The work is supported by Key Project of National Natural Science Foundation of China (50135020) and the Open Foundation of Guangdong Province Key Laboratory of Metal New Material (2008001).
Xia, et al.: Material Science Forum Vol.471-472(2004), p. 790-794
[7] L.J.Hu, R.R.Hu: Journal of Xiangtan University Vol.16 (1994), P. 98-103.
Online since: January 2005
Authors: Sang Jin Lee, Seung Hee Lee, Won Hee Han, Hyun Seo Shin
Journal Citation (to be inserted by the publisher)
Copyright by Trans Tech Publications
Synthesis of Phosphorescent Platinum Complexes
with 3-Aryl pyridazine as Prominent Emitting Materials
in Organic Light-emitting Device
Seung Hee Lee,*Won Hee Han, Hyun Seo Shin, Sang Jin Lee
Department of Chemical System Engineering, Hong-Ik University,
Jochiwon, Chungnam, 339-701, Korea, shleee@wow.hongik.ac.kr
Keywords: phosphorescent, platinum complex, emission, phenylpyridazine, naphthylpyridazine,
organic light-emitting device, OLED.
The fluorescent materials used in EML luminate via photophysically-allowed singlet-singlet transitions.
This fact is important in choosing a host material for organic light-emitting devices.
In order to get efficient pure-red emitting materials, efforts must be made for the synthesis of the complex with the narrow band and for sharply increasing the band right before 600 nm.
Kim, Material Science and Engineering C., 24 (2003), p. 221
The fluorescent materials used in EML luminate via photophysically-allowed singlet-singlet transitions.
This fact is important in choosing a host material for organic light-emitting devices.
In order to get efficient pure-red emitting materials, efforts must be made for the synthesis of the complex with the narrow band and for sharply increasing the band right before 600 nm.
Kim, Material Science and Engineering C., 24 (2003), p. 221
Online since: October 2011
Authors: Hong Cao, Wu Zhang, Hong Xing Zhou
Table 1 Grading analyze of model materials
Material
Grain size distribution
Grain size coefficient
d10/mm
d30/mm
d50/mm
d60/mm
Cu
Cc
Sand 1
0.34
0.52
0.75
0.90
2.65
0.88
Betonite
0.075
0.11
0.15
0.18
2.4
0.90
Sand 2
0.27
0.40
0.52
0.60
2.79
0.99
According to predetermined ratio, the bentonite, mixed with water and sand, is put into the bucket to stir until well-combined.
Vaid: Canadian Geotechnical Journal, Vol.37 (2000), p.1
Sellmeijer: Journal of Geotechnical Engineering., Vol 118 (1992), p. 943
Singh:Journal of Hydraulic Engineering, Vol. 129(2003), p.511
Hagerty: Journal of Hydraulic Engineering, Vol.117(1991),p. 991
Vaid: Canadian Geotechnical Journal, Vol.37 (2000), p.1
Sellmeijer: Journal of Geotechnical Engineering., Vol 118 (1992), p. 943
Singh:Journal of Hydraulic Engineering, Vol. 129(2003), p.511
Hagerty: Journal of Hydraulic Engineering, Vol.117(1991),p. 991
Online since: July 2013
Authors: Jun Jie Zhong, Ze Feng Wen, Xin Zhao, Bing Wu, Xue Song Jin
Acknowledgement
The present work was supported by the National Nature Science Foundation of China (No.
Journal für die reine und angewandte.
Journal of Mechanics, 2004, 20(2): 113-122
Journal of Mechanics, 2004, 20(2): 123-132
Convected material frame and examples.
Journal für die reine und angewandte.
Journal of Mechanics, 2004, 20(2): 113-122
Journal of Mechanics, 2004, 20(2): 123-132
Convected material frame and examples.
Online since: June 2021
Authors: Pham Mai Khanh, Nguyen Duong Nam, Le Thi Nhung
Effect of Temperature on δ-Ferrite Morphology of Carbon Steel
and Austenitic Stainless Steel Welds
Le Thi Nhung1,a, Nguyen Duong Nam1,b, Pham Mai Khanh2,c*,
1School of Mechanical Engineering, Vietnam Maritime University, Hai Phong, Vietnam
2School of Materials Science and Engineering, Hanoi University of Science and Technology,
Hanoi, Vietnam
anhunglt.vck@vimaru.edu.vn, bnamdn.vck@vimaru.edu.vn, ckhanh.phammai@hust.edu.vn
*corresponding author
Keywords: Delta Ferrite, weld metal, Dissimilar welds, heat treatment.
Journal of materials science 34.19 (1999), p.4727 - 4735
International Materials Reviews 36.1 (1991). p.16-44
Angelo Fernando Padilha, Caio Fazzioli Tavares, Marcelo Aquino Martorano, Delta ferrite formation in Austenitic stainless steel castings, Materials science forum Vols. (2013), p.730 – 732
Advanced Engineering Materials 1.3-4 (1999): 209-214
Journal of materials science 34.19 (1999), p.4727 - 4735
International Materials Reviews 36.1 (1991). p.16-44
Angelo Fernando Padilha, Caio Fazzioli Tavares, Marcelo Aquino Martorano, Delta ferrite formation in Austenitic stainless steel castings, Materials science forum Vols. (2013), p.730 – 732
Advanced Engineering Materials 1.3-4 (1999): 209-214