The microstructure, element diffusion and appearance of joint were analysed.
分析了接头微观组织结构，元素的扩散及断口形貌。
There are strong edge effects in the production of element diffusion into metal by double glow discharge.
在采用双辉光放电实施的离子渗金属加工中，存在强烈的边角效应。
A new surface strengthening method, RE-Multi-Element diffusion, for HSS cutters by positive-negative pressure pulse process is investigated.
本文主要介绍采用正负压脉冲稀土多元共渗技术对高速钢刀具表面强化的一种新方法。
A new stabilized finite element diffusion problems, method by also presented use of residual-free bubbles for the parabolic convection-dominated and proved the convergence.
文中利用泡函数构造数值，求解抛物型强对流扩散问题的稳定化方法，并给出收敛性分析。
The lamellae phase formed in high aging temperature provides channel for element diffusion in low aging temperature, so the magnetic properties increased during step aging process;
高温时效生成的片状相为低温时效时元素的迁移提供了路径，因此通过等级时效合金的磁性能得到提高；
The results show that interface element diffusion and reaction on interface in vacuum hot-pressing sintering processing improved interface strength. Fracture occurred mainly in Al matrix.
结果表明，真空烧结过程中出现了界面反应，改善了界面结合强度，断裂破坏主要在基体上进行。
Stimulus diffusion refers to an element of one culture leading to an invention in another.
刺激扩散指的是一种文化元素导致另一种文化的发明。
The interfacial diffusion of alloying element is an important factor to microstructure, apparent hardness and interfacial bond strength.
元素在界面两侧的扩散是影响材料显微组织、表观硬度及界面结合强度的关键。
Based on the theory of surface diffusion, a finite element method was developed to simulate shape evolutions of two-dimensional microcracks with surface perturbation.
根据表面扩散控制下物质迁移规律，建立有限单元法，对裂面形貌扰动下二维微裂纹演变过程进行数值模拟。
The interfacial diffusion of alloying element is important to microstructure, microhardness and interfacial bonding strength.
合金元素在界面两侧的扩散是影响材料显微组织、显微硬度及界面结合强度的关键。
Using computer programme, the effect element figure of inner diffusion on selectivity of consecutive reaction is drawn.
利用计算机编程绘制出内扩散对连续反应选择性的影响图。
A new stabilized finite element method by also presented use of residual-free bubbles for the parabolic convection-dominated diffusion problems, and proved the convergence.
文中利用泡函数构造数值，求解抛物型强对流扩散问题的稳定化方法，并给出收敛性分析。
The pressure equation is solved by mixed finite element method, while the concentration equation is solved by finite difference-streamline diffusion finite element method, that is, using SD f.
提出了解不可压缩两相混溶驱动问题的一种新的数值方法，压力方程用混合有限元求解，浓度方程用差分流线扩散方法求解。
The main reason of the above mentioned results is attributed to different diffusion mechanisms which are caused by different element natures in the alloy system.
产生这种现象的原因主要是合金体系中元素性质不同，使得反应合成制备中元素的扩散机制不同所造成的。
In this paper, finite bulk-finite element means is presented for solving convection-diffusion problem, moreover give out the stability analysis.
将有限体积和有限元方法相结合，解决对流扩散方程问题，并给出了稳定性分析。
In the paper, we present some two-grid methods for solving two-dimensional reaction-diffusion using expanded mixed finite element method.
在本文中我们提供了几种解决两维反应扩散方程的扩张混合有限元的两层网格方法。
This paper has focused on nonlinear diffusion of sewage from factories and rivers on mixing region of salt and fresh water of seaward firth. Finite element method has been used in this paper.
本文考虑盐淡水混合海湾沿岸的工厂和河流汇入污染物的非线性扩散现象，用有限元法进行数值分析计算。
Removal of the heat resistive element (2) and the electrode (3) is prevented by suppressing the diffusion of the metal component from the electrode (3) to the heat resistive element (2).
通过抑 制上述金属成分从电极（3）向发热电阻器（2）的扩散，能够防止发热电阻器（2）及电极（3）的剥离。
A variational formula combining mixed finite element method with discontinuous finite element method is derived for solving the two-group neutron diffusion equation in 2d.
构造了求解二维两群中子扩散方程的混合间断有限元格式，研制了相应的计算程序。
Topology-finite-element method is used and a topology-finite-element model for diffusion equation of non-equilibrium carriers is obtained.
文中采用拓扑有限元法，得出非平衡载流子扩散方程的拓扑有限元模型。
In chapter 4, for 2d nonlinear convection-dominated diffusion equation, a two-grid scheme of characteristic finite-element solution is constructed.
第四章里，对二维非线性对流扩散方程，构造了特征有限元的两重网格算法，并给出了相应的收敛性分析，数值例子。
The finite element analysis of three-dimensional steady-state convection-diffusion equation is given by using 4-node tetrahedral elements and 8-node hexahedral elements.
采用四结点四面体单元和八结点六面体等参数单元进行三维定常对流扩散方程的有限元分析。
The finite element analysis of three-dimensional steady-state convection-diffusion equation is given by using 4-node tetrahedral elements and 8-node hexahedral elements.
采用四结点四面体单元和八结点六面体等参数单元进行三维定常对流扩散方程的有限元分析。
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