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Online since: October 2006
Authors: Vladimir V. Popov, E.P. Romanov, N.E. Hlebova, V.I. Pantsyrny, A.K. Shikov, E.N. Popova
. %] ∅ [ mm] η * ηо UTS [MPa] H [MPa] *Ψ [ %] 9 Сu -18 Nb 1.0 6.80 4.60 980 2250 71.1 10 Сu -18 Nb-0.2 Zr 1.0 6.80 4.60 1050 2400 41.9 11 Сu -18 Nb 0.8 7.25 0.45 890 1970 71.6 12 Сu -18 Nb-0.2 Zr 0.8 7.25 0.45 990 2050 35.2 13 Сu -18 Nb 0.3 9.21 7.01 1530 3460 59.2 14 Сu-18 Nb-0.2 Zr 0.3 9.21 7.01 1590 3540 17.9 15 Сu -18 Nb 0.3 9.21 2.41 1460 2880 66.1 16 Сu-18 Nb-0.2 Zr 0.3 9.21 2.41 1560 3090 18.3 * ηо is the true strain after the last annealing, Ψ is the relative transverse reduction.
According to the X-ray data obtained the dislocation density in copper matrix after deformation with three annealings is appreciably lower than in the case of only one annealing, and it may be suggested that in the former it does not reach the level at which the dynamic recovery and recrystallization would be possible.
Online since: May 2011
Authors: Dong Xiang, Guang Hong Duan, Jian Bo Sui, Peng Mou
The reduction can verify that the structure of rubber is destroyed to some extent during the mechanochemical milling process.
The reason may be due to higher crosslink density of rTTR than that of dTTR, which is also corroborated by crosslink density value data of rTTR and dTTR.
Online since: February 2010
Authors: Heinz Günter Brokmeier, Volker Ventzke, Mustafa Koçak, Peter Merhof
Introduction Multi-material systems are becoming attractive for complex lightweight constructions with respect to functionality, cost and weight reduction.
The data obtained were calculated based on the ZAF method. 3.
Online since: October 2010
Authors: Sergey Yudintsev, Sergey V. Stefanovsky, Tatiana Livshits, Rodney Charles Ewing
Irradiation of the samples with 1 MeV Kr ions shows good correlation with the data obtained by short-lived actinide doping.
Reduction of Tc enhances the radiation resistance of the matrices as a result of accelerating the recovery of structural damages.
Online since: October 2007
Authors: Teimuraz Mchedlidze, Manfred Reiche, Martin Kittler, Tzanimir Arguirov, T. Wilhelm, X. Yu
All images were taken from the same sample.A further reduction of the twist component resulted in increasing dislocation spacings.
Assuming experimentally verified data (sizes of precipitates of about 5×5 nm², a thickness of about 10 nm, and a density of 1000 µm -2) the volume of the precipitates is about 10 -4 to 10-5 times less than that of a native oxide layer.
Online since: November 2012
Authors: Zhi Min Yin, Zhi Qi Huang, Gang Wang
The main method to study aluminum alloy quenching sensitivity is drawing TTT curves , TTP curves and CCT curves of alloy through a large amount of experimental data, which can determine the quenching sensitivity temperature interval, critical cooling rate so that guide the actual setting of process parameter[5-7].
This is because the quenching media can contact the alloy more fully under water bath, which is good for the reduction of the alloy temperature.
Online since: November 2005
Authors: Dong Bok Lee, Si Yon Bae, J.W. Kim, Bum Joon Kim, Byeong Soo Lim
The effect of oxidation of the samples on the creep data is meager.
The precipitation of fine Ti-silicides and the reduction in α/β colony sizes are primarily responsible for the obtained good mechanical behavior.
Online since: August 2010
Authors: Guo Xian Yu, Jin An Wang, Xiao Long Zhou, Cheng Lie Li, Rui Xue Zhou, Ji Bing Li, Li Fang Chen
Data were collected from 2 theta from 10° to 80° in steps of 0.02 º/s.
When HPW was supported on the activated carbon, moderate reduction of its surface area and micropore volume was observed as shown in Table 1.
Online since: October 2010
Authors: Wen Sheng Lu, Xin Zhang, Xi Lin Lu
New Resolution for Historic Building Conservation by Building Moving Technology LU Xilin1, a, LU Wensheng2,b and ZHANG Xin 3,c 1,2 State key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai China 3 Institute of Engineering Appraisal and Strengthening, Shandong Jianzhu University, Jinan Shandong, China a lxlst@tongji.educ.n, bwenshenglu@vip.163.com, czhangxin@sdadr.edu.cn Abstract: To contradict from the rapid development of economy and urban construction, the conservation and strengthening of historic buildings are becoming more and more important and requiring more wisdoms and new technologies.
Table 1: Monitoring Items on each phase of moving buildings Each phase of building moving Monitoring Items Original position Structural apprising and safety assessment, settlement survey, structural state of the building, levelling of sub-track lower track system, dynamic properties Moving procedure Structural state of the building, settlement survey, monitoring on sensitive strains and critical cracks , dynamic behaviour tests New Position Structural state of the building, settlement survey, dynamic properties The most difficult step for monitoring a moving building is to master and merge the large amount of recorded data and phenomena in time, to assess the safety conditions of moving buildings and related structures, and to give reasonable judgments on the next moving procedure.
Online since: June 2010
Authors: Stanisława Jonas, Katarzyna Tkacz-Śmiech, Karol Przetakiewicz, Piotr Boszkowicz
The averaged data are collected in Table 3.
The application of such layers allows, in particular, reduction of surface roughness with respect to the initial roughness of the polymer.
Showing 38991 to 39000 of 40694 items