| 1. | Purification and refinement of bulk al - ce - ni alloy 共晶合金块体金属的净化与组织细化 |
| 2. | Thermal analytical investigations of al - mg - zn eutectic alloy 铝镁锌共晶合金的热分析研究 |
| 3. | Effects of yttrium on mechanical properties and microstructures of ti - si eutectic alloy 3共晶合金微观组织和力学性能的影响 |
| 4. | The rapid solidification process of pb - sn eutectic alloy is investigated with acoustic levitation and the maximum undercooling of 38k has been achieved 采用声悬浮无容器处理技术研究了pb - sn共晶合金在深过冷条件下的凝固规律。 |
| 5. | The theoretical calculation based on jh and tmk models is accomplished and predicts that the maximum undercooling for cooperative eutectic growth is 199k 发现随着过冷度的增大, al - cu共晶合金发生“规则共晶?不规则共晶”的组织形貌转变。 |
| 6. | The containerless rapid solidification of al - 32 . 7wt % cu eutectic alloy in drop tube is investigated . the " lamellar eutectic - anomalous eutectic " microstructural morphology transition occurs with the decrease of droplet size 采用落管无容器处理技术研究了al - 32 . 7wt cu二元共晶合金在深过冷条件下的快速凝固规律。 |
| 7. | Containerless processing is a promising way to study rapid solidification . it can efficiently eliminates heterogeneous nucleation induced by container wall so that large undercoolings can be achieved prior to solidification 同时,采用落管无容器处理技术,研究了al - 32 . 7wt cu二元共晶合金的深过冷及快速凝固行为。 |
| 8. | 4 . under the directional solidification , either sub - or hyper - eutectic alloys , with the increase of growth rate , the lst dendritic arm spacing decreases and 2st dendritic arm spacing is restrained to some extent 4定向凝固条件下,随着凝固速率的增加,无论亚共晶合金或过共晶合金,一次枝晶间距减小,二次枝晶生长得到不同程度的抑制。 |
| 9. | 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。 |