Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: May 2013
Authors: Xiao Ling Hu, Li Wei Qian, Yi Mei Tang, Ping Guan
Al-Tuwaim, M.S.
Al-Jimaz: Fluid Phase Equilibr.
El-Zahab, J.F.
Al-Jimaz: Fluid Phase Equilibr.
El-Zahab, J.F.
Online since: September 2011
Authors: Qiao Lin Ouyang, Yan Zeng Wu, Qingyuan Wang
JIAO Yan-jun et al. [8] showed a significant reduction of the number of adherent bacteria was observed on modified titanium alloy surface after plasma nitriding surface modifications, compared with the polished.
Table 1 Chemical composition of the material studied (%) Ti Al V Fe Si C N H O rest 5.5~6.8 3.5~4.5 0.30 0.15 0.10 0.05 0.015 0.20 Table 2 Mechanical properties of the material studied 106 1009 891 4440 10 Design of ultrasonic fatigue specimen dimensions is required to meet the system resonance conditions, based on analytical method [11].
Wang, E.L.
Table 1 Chemical composition of the material studied (%) Ti Al V Fe Si C N H O rest 5.5~6.8 3.5~4.5 0.30 0.15 0.10 0.05 0.015 0.20 Table 2 Mechanical properties of the material studied 106 1009 891 4440 10 Design of ultrasonic fatigue specimen dimensions is required to meet the system resonance conditions, based on analytical method [11].
Wang, E.L.
Online since: January 2005
Authors: Masuo Hagiwara, Satoshi Emura, A. Araoka
Cooling rate
(K/s)
0.2%YS
(MPa)
TS
(MPa)
El
(%)
0.003 603 704 11.9
0.03 668 835 11.2
0.1 715 945 8.3
High Cycle Fatigue Properties
Figure 3 shows the room temperature HCF curves of the Ti-22Al-27Nb alloy cooled at three
different cooling rates.
Kim et al., eds., TMS, Warrendale, PA, (1991), pp.387-398
Gogia et al.: Intermetallics, 6(1998), pp.741-748
Kim et al., eds., TMS, Warrendale, PA, (1991), pp.387-398
Gogia et al.: Intermetallics, 6(1998), pp.741-748
Online since: October 2004
Authors: Miroslav Greger, Stanislav Rusz, Milena Widomská
Schematic illustration of equal
channel angular pressing process (ECAP)
basic tests with use of the following materials - Pb, Al, Mg.
Table 1 Typical composition and mechanical properties Al Zn Mn Si Cu Zr other Y.S.
U.T.S Grade [%] [MPa] El. [%] BHN Tdef [o C] MgAl8Zn 7,5/9,2 0,2/1,0 0,1/0,4 <0,1 <0,05 - <0,30 230 330 11 69 320/400 MgAl3Zn1 2,5/3,5 0,6/1,4 >0,2 <0,1 <0,05 - <0,30 170 260 15 50 230/425 MgZn6Zr - 4,8/6,2 - - - >0,4,5 <0,30 >260 340> 11 75 315/400 Square section of the input samples was 8 x 8 mm.
Table 1 Typical composition and mechanical properties Al Zn Mn Si Cu Zr other Y.S.
U.T.S Grade [%] [MPa] El. [%] BHN Tdef [o C] MgAl8Zn 7,5/9,2 0,2/1,0 0,1/0,4 <0,1 <0,05 - <0,30 230 330 11 69 320/400 MgAl3Zn1 2,5/3,5 0,6/1,4 >0,2 <0,1 <0,05 - <0,30 170 260 15 50 230/425 MgZn6Zr - 4,8/6,2 - - - >0,4,5 <0,30 >260 340> 11 75 315/400 Square section of the input samples was 8 x 8 mm.
Online since: January 2012
Authors: P. Ramesh Narayanan, G. Sudarshan Rao, K. Saravanan, V.M.J. Sharma, G Harikrishnan, K. Sreekumar, Parameshwar Prasad Sinha
Introduction
Nickel base alloy Inconel 718 (IN718) containing Fe, Cr, Mo, Nb along with minor elements of Al and Ti is extensively used in high temperature applications.
Cr Fe Nb Mo Ti Al Cu Ni 19 18 5 3 0.9 0.5 0.5 53 IN718 supplied by M/s.
Temperature Specimen UTS [MPa] 0.2%YS [MPa] % EL [25 mm GL] E [GPa] RT Parent 1462 1315 21.6 209.6 Weld 1039 757 9.0 227.0 550 °C Parent 1256 1145 15.4 176.4 Weld 809 600 8.0 171.0 Fig.2.
Cr Fe Nb Mo Ti Al Cu Ni 19 18 5 3 0.9 0.5 0.5 53 IN718 supplied by M/s.
Temperature Specimen UTS [MPa] 0.2%YS [MPa] % EL [25 mm GL] E [GPa] RT Parent 1462 1315 21.6 209.6 Weld 1039 757 9.0 227.0 550 °C Parent 1256 1145 15.4 176.4 Weld 809 600 8.0 171.0 Fig.2.
Online since: September 2013
Authors: Wisanu Pecharapa, Wicharn Techitdheera, Siriwattana Aunpang, Krisana Chongsri
Meanwhile, recently, doping ZnO with transition metal such as Ni [4], Al [5], Cu [6] has been verified as an effective method to adjust its functionality including electrical and optical properties Cu-doped ZnO has shown singnificant improved properties such as electrical, magnetic, photocatalytic performace and gas sensing properties.
Valberg, A.L.
El-Hilo, A.A.Dakhel, A.Y.Ali-Mohamed, Room temperature ferromagnetism in nanocrystalline Ni-doped ZnO synthesized by co-precipitation, Journal of Magnetism and Magnetic Materials. 321 (2009) 2279–2283
Valberg, A.L.
El-Hilo, A.A.Dakhel, A.Y.Ali-Mohamed, Room temperature ferromagnetism in nanocrystalline Ni-doped ZnO synthesized by co-precipitation, Journal of Magnetism and Magnetic Materials. 321 (2009) 2279–2283
Online since: April 2014
Authors: Sittichai Seangatith, Chanon Chatwiwat, Jaksada Thumrongvut
The mechanical properties of the PFRP material were provided by Boonsuan et al. [3].
It was found that the averaged longitudinal ultimate compressive stress () and longitudinal compressive modulus of elasticity (EL) is 181.1 MPa and 34.2 GPa, respectively.
[2] Ye, B.S., Svenson, A.L., and Bank, L.C.
It was found that the averaged longitudinal ultimate compressive stress () and longitudinal compressive modulus of elasticity (EL) is 181.1 MPa and 34.2 GPa, respectively.
[2] Ye, B.S., Svenson, A.L., and Bank, L.C.
Online since: October 2014
Authors: Liviu Marian Ungureanu, Danuta Grad, Cristian Gabriel Alionte
Also, Rohan et al [4] present a theoretical model based on semi-empirical equation of the relative erosion Er:
(1)
This equation is based on speed, V and on the angle of incidence of the solid particle jet α and the number of the particles,n.
Fukunagab, “The solid particle erosion behavior of Al18B4O33 whisker-reinforced AC4C al alloy matrix composites”, Wear, Vol 223, Issues 1–2, December 1998, pp. 22–30
[3] Tayeb NSM El, “A study on the potential of sugarcane fibers/polyster composite for tribological applications”, Wear, Vol.265, 2008, pp. 223-235
Fukunagab, “The solid particle erosion behavior of Al18B4O33 whisker-reinforced AC4C al alloy matrix composites”, Wear, Vol 223, Issues 1–2, December 1998, pp. 22–30
[3] Tayeb NSM El, “A study on the potential of sugarcane fibers/polyster composite for tribological applications”, Wear, Vol.265, 2008, pp. 223-235
Online since: May 2012
Authors: Emrah Demirci, Vadim V. Silberschmidt, Si Min Li
Mercer et al.
Boyce et al. reported a diffused crack pattern in tension, while, a totally different cross-hatch crack pattern in compression [8].
[8] Boyce, T.M., Fyhrie, D.P., Glotkowski, M.C., Radin, E.L., Schaffler, M.B.
Boyce et al. reported a diffused crack pattern in tension, while, a totally different cross-hatch crack pattern in compression [8].
[8] Boyce, T.M., Fyhrie, D.P., Glotkowski, M.C., Radin, E.L., Schaffler, M.B.
Online since: February 2014
Authors: Chao Su, Li Tao Zhang, Peng Fei Liu
From the longitudinal view of time, we can see the evolutionary trajectory for IT/IS research: 1980s, the research is focused on the system planning and application advantages of corporate positioning under the strategic framework; 1990s, the research direction mainly focused on the integration of internal and external resources; since 2000, due to the arrival of network times, IT/IS faced the impact of uncertainty competitive factors and dynamic theory (Yasmin Merali et al., 2012).
Path combination four：⑤⑦and⑧ (The evolution of IT architecture under business strategy) We can draw a conclusion from the research of Nelson （2010）and Mohamed El Mekawy（2009）that internal factors decide the path we choose.
[9] Nelson M L, Peterson J, Rariden R L, et al.
Path combination four：⑤⑦and⑧ (The evolution of IT architecture under business strategy) We can draw a conclusion from the research of Nelson （2010）and Mohamed El Mekawy（2009）that internal factors decide the path we choose.
[9] Nelson M L, Peterson J, Rariden R L, et al.