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characteristics, and high elastic modulus, etc. These favorable properties can contribute significantly to the aspect of mass saving in the design and construction of automobiles, mobile phones, aerospace.... Effect of Al addition on the elevated temperature deformation behavior of Mg-Zn-Y alloy [J]. Mater Sci Eng A, 2008, 487(1/2): 481-487. [11] OH-ISHI K, HONO K, SHIN K S. Effect of pre-aging and Al......
carbide(SiC) fibers, which have high tensile strength, high elastic modulus and good thermal stability, are one of the best candidates of the reinforcements available for continuous-fiber- reinforced... is evidently reduced compared with that of non-cured PCS fibers. The intensity of the peak at 1 250 cm-1 (Si─CH3, deformation vibration) is very similar. This reduction intensity at 2 100 cm-1......
. Model parameters were set as σs=205 MPa, elastic module was E=210ρ MPa and Poisson’s ratio was v=0.5ρ2. The initial relative density was 0.45. Since loose powder is quite easy to deform, the value... A, DOWNEY C L. Deformation characteristics and plasticity theory of sintered powder materials [J]. International Journal of Powder Metallurgy, 1971, 7(1): 15-25. [7] GREEN R J. A plasticity theory......
their motion and affect deformation behavior[5]. This solute may also facilitate dynamic growth during exposure with stress. Fig.3 Representative micrographs taken near [110]α zone axis illustrating... in Al-Cu-Mg-Al alloys[J]. Mater Sci Forum, 2007, 456/549: 941-946. [5] SUH I S, PARK J K. Influence of the elastic strain energy of the nucleation of Ω phase in Al-Cu-Mg(-Ag) alloys[J]. Scr Metall......
to their combination of high specific strength, elevated temperature resistance and low density as well as high elastic modulus[1-4]. Moreover, the particles reinforced titanium alloy matrix composites... content, the hardness of TiC/Ti-6Al-4V composites also increases. References [1] GONZALEZ C, LLORCA J. Micromechanical modeling of deformation and failure in Ti-6Al-4V/SiC composites[J]. Acta......
cracking model (4) 钢筋生锈膨胀均匀,锈蚀钢筋变形简化成图2所示. 图2 钢筋锈胀变形 Fig.2 Rebar’s deformation during corrosion expansion 依据钢筋变形模型,有[11]: 1.2 理论推导 对图1所示锈胀开裂概化模型,采用极坐标系进行分析.由平面应力关系,得=0,其中... of reinforced concrete members and its influence factors[J]. Industrial Construction, 2001, 31(5): 6-8. [13] 徐芝纶. 弹性力学简明教程[M]. 北京: 高等教育出版社, 1983: 32-34.XU Zhi-lun. Elastic theory[M]. Beijing: Higher......
flakes. It is suggested that a lot of plastic deformation induced by the ball milling causes such a shape change. Furthermore, no obvious difference can be seen for the size of these two samples...) Particles annealed at 500 ℃; (e) Particles annealed at 600 ℃; (f) Particles annealed at 800 ℃ It can be seen that Ni52Mn24Ga24 bulk alloy annealed at 850 ℃ for 2 h exhibits one step thermal elastic......
(1-2): 221-231. [11]Watonabe M, Mercer C, Levi C G, et al. A probe for the high temperature deformation of thermal barrier oxides[J]. Acta Mater, 2004, 52(5): 1479-1487. [12]Lima R S, Kucuk A, Berndt C C. Evaluation of microhardness and elastic modulus of thermally sprayed nanostructured zirconia coatings[J]. Surface and Coatings Technology, 2001, 135(2): 166-172. [13]Schlichting K W, Padture N......
, JONAS J J, BOYLE K, MARTIN R. Deformation behavior of two Mg alloys during ring hoop tension testing [J]. Materials Science and Engineering A, 2008, 492: 68-73. [2] HAN B Q, LANGDON T G. Improving... A, RIEHEMANN W, SALVATIERRA L M, GARCIA J A. Effects of precipitation processes on damping and elastic modulus of WE 43 magnesium alloy [J]. Materials Science and Engineering A, 2004, 373(1/2......
]. Beijing: National Defence Industry Press, 1996. [7] 李雪春, 杨玉英. 塑性变形对铝合金弹性模量的影响[J]. 中国有色金属学报, 2002, 12(4): 701-705. LI Xue-chun, YANG Yu-ying. Effect of plastic deformation on elastic modulus......