It is found that the electric , field improves elongations in 2090 and 2090 + ce alloys markedly , especially in 2090 alloy , but has little effect on strengths . at the same time , the electric field lessenes percentages of intergranular delamination and increases transgranular fracture and microscopic plastic deformation . besides , the electric field makes both average particle size and its distributing range of 8 " phase smaller , and reduces the half width of pfz in aged alloys 研究表明：固溶电场可显著提高2090合金及2090 + ce合金的延伸率，尤其是对2090合金，但对强度则无明显的影响；同时，固溶电场减少合金的沿晶分层断裂比例，并增加穿晶断裂及微区塑性变形；固溶电场还使合金时效后相颗粒的平均尺寸减小、尺寸分布范围减小，并使pfz的宽度减小。
The mechanical property of the test sample was improved through heat treatment further . after heat treatment process , the primary strengthening phase y " increased both in the quantity and size . the quantity of phase y " increased to 45 % and the size of them became more uniform ( about 100nm ) as the test sample experienced heat treatment 为了提高成形件的力学性能，对试样进行了热处理，经过热处理后，试样的主要强化相相无论是数量还是尺寸都有显著变化，数量经过热处理后增加到45左右，原始尺寸从大小不等到经过热处理后更加均匀，平均尺寸为100nm 。
Abstract : a continuity wave model is put forward for the dispersion processof liquid - liquid two - phase system , by coupling mass and momentum conservation equations of two - fluid model . the conditions that result in a dispersion choke and the weak instability of a dispersion process are derived from the model . the phenomena of catastrophic inversion and transitional inversion are explained . the effect of drop size distribution on the maximum volume concentration of a emulsion is predicted using the model . according to the theory herein , emulsion inversion is the regime transition of liquid - liquid system due to the instablity of a dispersion process . the effect of drop size distribution on the maximum volume concentration of a liquid - liquid emulsion only occurs in a certain range of weber numbers 文摘:以双流体模型为基础，通过质量守恒方程和动量守恒方程的耦合，提出了液-液两相系中弥散传质的连续波模型.由该模型得到弥散传质过程阻塞和弥散传质过程弱不稳定性产生的条件，计算了液滴尺寸及其分布对乳化液极大堆砌分数的影响，解释了剧变型乳化逆变和渐变型乳化逆变现象.研究结果表明，乳化逆变是由于弥散传质过程的不稳定性而引起的悬浮体型态的改变，随液滴尺寸多分散性的增大，极大堆砌分数增大；随液滴平均尺寸的增大，多分散性对极大堆砌分数的影响减弱；当韦伯数足够大时，液滴尺寸及其分布对乳化液极大堆砌分数无影响
Caculation is carried through adopting mechanism function of the first order reaction , f1 : f ( ) = l - . the results have good linear relativities , a , the precipitated fractions are excellently representative , and f1 is ascertained the most probably mechanism function of " phase precipitation . the electric field reduces activation energies of " phase precipitation and average sizes of " particles both in 2090 and 1420 alloys 采用一级反应的模型函数f1 ： f ( ) = 1 - ，计算了相析出的动力学，计算结果具有良好的线性相关性，并且具有很好的代表性，确定f1为相析出的最概然机理函数；电场固溶使2090合金和1420合金升温时效过程的相析出激活能有一定程度的减小，并减小了相颗粒的平均尺寸。
