| 1. | Strengthening phase mg2si is precipitated in the structure of alloy
组织中有强化相mg _ 2si相析出。 |
| 2. | The reversion and precipitation of the second phase which occurs during the course of aging result in electronic conductivity reversion of bar
时效处理对导条组织和性能的影响是因为时效过程中先后发生了回复、再结晶和第二相析出。 |
| 3. | Kinetics of 8 " phase precipitation and influence of electric field applying during solution process are studied by differential scanning calorimetry ( dsc ) technique
以示差量热分析技术( dsc )研究相析出的动力学及固溶电场的影响。 |
| 4. | The interaction of 8 " and t , phases is improved and the composite phase of 8 " and p " increase . both positive and negative electric fields have the similar effects
电场固溶促进'一相析出，合金中6相的和t ；相的交互作用增强，且厂相和各相的复合相增多。 |
| 5. | The dsc results show that the electric fields have little influence on 8 " precipitation of al - li alloy . there is little change of the 8 " precipitate fraction and rate
首次对电场作用后合金的析出动力学研究， dsc测量分析表明，电场固溶对铝锂合金'相析出动力学影响不大， '相的析出百分数和析出速率变化不明显。 |
| 6. | Both the smco5 phase and the sm2co17 phase appear while the annealing temperature is higher than 700 . the texture of the thin films is influenced by the annealing temperature remarkably
结果表明,在低于700的温度退火时,主要是smco5永磁相析出,而在高于700的温度退火时,薄膜中同时有smco5和sm2co17永磁相析出。 |
| 7. | 6 . through analysis and discuss of the precipitation mechanism of cr phase , it can be deduced that primary ( cr ) phase exhibits petal shape or triangular due to solute and heat flow in local fluid
6通过对初生相( cr )相析出机制的初步分析和探讨，认为由于熔体局部的溶质和热流波动，初生相的生长形态有花瓣状或三棱形。 |
| 8. | In experiment , the dsc technique was used to analyze the effect of electric fields on the precipitate kinetic of al - li alloy solutionized with electric fields . the energy spectrum , tem and sem techniques are employed to investigate the elements solution , precipitates , fracture character , conductivity and vickers hardness . also , the solidification of al - cu eutectic alloy was conducted with the influence of electric fields
在实验上，利用dsc热分析技术，分析了电场作用对al - li合金相析出动力学的影响；采用能谱成份检测，透射电镜和扫描电镜等多种微观检测手段，对铝合金的析出相，断裂特征、合金电导率和维氏硬度等性能在电场作用下的变化进行了系统的研究，并观察了al - cu共晶合金在电场作用下的凝固组织。 |
| 9. | 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。 |
| 10. | The mechanical parameters at high temperatures - reduction in area ( ra % ) and tensile strength ( o b ) are measured by means of gleeble - 2000 thermal simulating machine . fracture surfaces are analyzed by scanning electron microscopy and optical microscopy . the segregation of sn is also examined by auger electron spectroscopy
通过测定试验钢种的高温力学参数(断面收缩率ra和抗拉强度_ b ) ，观察金相显微组织，分析扫描断口形貌，测试第二相析出物和俄歇能谱试验等方法，研究了残留元素sn及冷却速率对高温力学性能的影响。 |
