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Trans. Nonferrous Met. Soc. China 31(2021) 764-778 Influence of nickel silicides presence on hardness, elastic modulus and fracture toughness of gas-borided layer produced on Nisil-alloy N. MAKUCH... modulus were measured using the nanoindenter with a Berkovich diamond tip under a load of 50 mN. The average values of indentation hardness (HI) and indentation elastic modulus (EI) obtained in the outer......
of brittle materials. With increasing relative density, the whole trend of yield strength (σpl) and apparent elastic modulus (E0.2) also increases. Key words: closed-cell aluminum foam; dynamic compression; relative density; yield strength; apparent elastic modulus 泡沫铝是一种由金属骨架和泡孔组成的新......
. Fig. 2 Burgers model for viscoelastic asphalt mastic matrix After carrying out Laplace transform, the elastic modulus of Burgers model in the transformed domain is given as (12) 2.2.2 Complex..., the complex elastic modulus in the frequency domain can be expressed as (13) 3 Viscoelastic micromechanical modeling As mentioned previously, AC......
: Considering the characteristics of mechanical properties of the ground soil varying with depth, it is assumed that soil’s shear modulus, shear strength in the elastic limit state and residual coefficient... confirmed the rationality of the proposed approach and basic assumptions. Finally, influences of distribution parameters with depth of soil’s shear modulus, shear strength in the elastic limit state......
is the length of an infinitesimal thin strip element(Fig.4), E is the elastic modulus of the thin strip material, I is the second moment of area per unit width of the thin strip cross section, M...; (7) where , where σy is the yield stress of the thin strip, and Ed is the elastic modulus of the elastic foundation. 2.2 Solution to part AB......
the elastic constants of C11 more than that of C12 and C44. Specifically, higher pressure leads to greater bulk modulus (B), shear modulus (G), and elastic modulus (E). We predict B/G and anisotropy... modulus G, Poisson ratio ν, elastic modulus E, Debye temperature Θ, bulk modulus B, and anisotropy factor A. In addition, the thermodynamic properties at different temperature and pressure are studied......
工艺参数对爆炸喷涂WC-Co涂层性能均匀性的影响王铁钢1,宋丙红2,华伟刚1,宫骏2,孙超2(1.辽宁省沈阳市科学院金属研究所金属腐蚀与防护国家重点实验室2.中航工业哈尔滨东安发动机(集团)有限公司,哈尔滨 150066)摘 要:采用正交实验,分别研究了氧燃率,喷涂距离对爆炸喷涂WC-Co涂层性能的影响.通过工艺优化,获得了结构均匀致密,硬度高,弹性模量大,耐磨性能好的WC-Co涂层.利用XRD和SEM分析涂层的物相组成,观察其微观结构,经截面与表面力学性能和磨损性能对比,优化后的涂层表现出近似各向同性特征.分......
and failure, without necking phenomenon. The elastic modulus, ultimate strength and elongation decrease with the increase of porosity and the elongation is much lower than 5%. A macroscopic brittle... SPM for analyzing the elastic properties of the porous material. Key words: porous FeAl intermetallics; uniaxial tensile; fracture mechanism; stochastic porous model (SPM); equivalent elastic modulus......
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December 2010; accepted 16 June 2011 Abstract: The effect of structure, elastic modulus and thickness of lower modulus layer in porous titanium implants on the stress distribution at the implant–bone...–bone interface stress to surrounding bones. Key words: titanium implant; elastic modulus; finite element analysis; porous structure 1 Introduction Titanium and titanium alloys have become......
