共搜索到5431条信息,每页显示10条信息,共544页。用时:0小时0分0秒404毫秒
......
Deformation behavior and microstructural evolution during hot compression of an a+b Ti-6.5Al-3.5Mo-1.5Zr-0.3Si alloyGao-feng Liu1), Shang-zhou Zhang1), Li-qing Chen2), and Jian-xun Qiu1) 1) School... isothermal hot compressive tests at a strain rate of 0.01-10 s-1 at 860-1100°C. The true stress-true strain curves of the sample hot-compressed in the a+b phase region exhibit a peak stress followed......
by isothermal hot compression test in the temperature range from 320 to 530 °C and the strain rate range from 0.001 to 10 s-1. The results reveal that the flow stress of the alloy exhibits a continuous... s-1 than in the specimen deformed at 460 °C and 0.1 s-1 even though they have very close ln Z values. Key words: Al-Mg-Si-Cu aluminum alloy; isothermal hot compression; flow stress; dynamic......
ISOTHERMAL SECTION OF Mg-Zn-La SYSTEM IN Mg RICH CORNER AT 350℃ H.X.Li1,Y.P.Ren1,H.Ding1,M.L.Huang1,S.M.Hao1 (1.School of Materials and Metallurgy,Northeastern University,Shenyang 110004,China... (EPMA-EDS), and X-ray diffraction (XRD) have been used to identify the phase equilibrium and the composition of each phase in the alloys. As a result, the isothermal section of Mg-Zn-La system in Mg......
Axial compression physical testing of traditional and bird beak SHS T-jointsCHEN Yu(陈誉)1, 2, WANG Jiang(王江)2(1. School of Urban Construction, Yangtze University, Jingzhou 434023, China;2. College... types under axial compression at brace end were carried out. Experimental test schemes, failure modes of specimens, jack load-vertical displacement curves, jack load-deformation of chord and strain......
J. Cent. South Univ. (2012) 19: 1125-1131 DOI: 10.1007/s11771-012-1118-y Stress-strain behavior of plastic concrete using monotonic triaxial compression tests Y. Pashang Pisheh, S. M. Mir Mohammad...: The mechanical behavior of plastic concrete used in the cut-off walls of earth dams has been studied. Triaxial compression tests on the specimens in various ages and mix designs under different......
to reduce the maximum forming load. A scheme of isothermal forming and the use of combined female dies were adopted, which can improve the die filling capacity and ensure the manufacture of high quality... show that the hot compression of AZ80 magnesium alloy has the peak flow stresses of pre-strained alloy with finer grain, which are lower by 20% than those of as-cast alloy under the same deformation......
......
......
, Beijing 100024, China) Abstract: The isothermal compression of TC17 alloy at 820 and 860 ℃, and subsequently annealing for 10 min-8 h were conducted, and the effects of deformation degree, annealing... to a constant with increasing the annealing time. The JMAK equation can be used to describe the static globularization kinetics. Key words: TC17 titanium alloy; static globularization; isothermal compression......