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描述稳定面心立方金属真应力与真应变关系的数学模型朱玉亮,郑文杰,宋志刚,丰涵钢铁研究总院特殊钢研究所摘 要:从拉伸应变硬化指数n的物理意义出发,提出一种建立真应力与真应变关系数学模型的方法,即通过寻求应变硬化指数与真应变的函数关系,求解微分方程得到真应力与真应变的关系.结合对一种面心立方合金拉伸应变硬化规律的研究,建立了一个新的真应力与真应变关系的数学模型.对另一部分金属材料的研究表明,该模型适用于描述在变形过程中不发生相变的稳定面心立方金属材料的拉伸真应力与真应变的关系.关键词:真应力;真应......
:The effect of cobalt on the magnetic properties and anisotropy of HDDR anisotropic NdFeB was studied. It is found that Co is helpful for preparing anisotropic NdFeB with high coercivity. The research... anisotropy. Key words:rare earths; Co; HDDR NdFeB; anisotropy; [全文内容正在添加中] ......
and E51 epoxy resin. The OPCM shows obvious orthogonal anisotropy. The matching property of the interface between piezoelectric ceramic and polymer of OPCM relies on the defects of interface. The proper conductive mid-layer could improve the matching property of the interface. Key words:piezoelectricity; composite; orthogonal anisotropy; ceramic; [全文内容正在添加中] ......
Correlation of morphological anisotropy and Lankford value of deep drawing sheets hot-rolled by compact strip productionShu-li Li 1),Run Wu 1),Yuan-zheng Wei 2),Zhi-fang Wu 1),Xue-jun Zhou 2),Yong-fu Zhang 1),and Guang Xu 1) 1) School of Material and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,China 2) Wuhan Iron and Steel(Group) Corporation,Wuhan 430083,China摘 要:
Magnetization reversal of antiferromagnetically coupled perpendicular anisotropy films driven by currentX.T.Zhao,Y.Q.Zhao,W.Liu,Z.M.Dai,T.T.Wang,X.G.Zhao,Z.D.ZhangShenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences摘 要:By inserting an ultrathin Pt layer at Co/Ru interface,we established......
Simulation of facet dendrite growth with strong interfacial energy anisotropy by phase field methodYUAN Xun-feng(袁训锋)1, 2, LIU Bao-ying(刘宝盈)1, LI Chun(李春)2, ZHOU Chun-sheng(周春生)2, DING Yu-tian(丁雨田)3... of the facet dendrites increases linearly. The facet dendrite growth has controlled diffusion and kinetics.Key words:phase field; facet dendrite; hcp materials; interfacial energy anisotropy......
directions. The magnetization decreases with increasing temperature,showing good agreement with thermal effect. A strong anisotropy of the magnetization is found under high magnetic field, but when the magnetic field is small, M and H are proportional. Key words:magnetic field; magnetization; anisotropy; multiplet; [全文内容正在添加中] ......
proper annealing treatment. Hot pressing can produce the anisotropy and refine the grain size, so that the magnetic properties are greatly improved. The technique has the advantages of simple processing... properties obtained are: Br=1.05 T, i Hc=955 kAm-1, (BH)max=207 kJ*m-3. Key words:rare earths; hot deformation; anisotropy; sintering; [全文内容正在添加中] ......
phase field model was presented to simulate the dendritic shape of a non-isothermal alloy with strong anisotropy in a forced flow. The simulation results show that a crystal nucleus grows... on the downstream and perpendicular arms are intensified, and the perpendicular arm tilts to the upstream direction. With increasing the anisotropy value to 0.14, all of the dendrite arms tip velocities......
; Antiferromagnetic; exchange-coupling; NiO; permeability; Anisotropy Field; Ferromagnetic Resonance Frequency; [全文内容正在添加中] ......