| 1. | Numerical simulation of macro - segregation with equiaxed grains movement 等轴晶移动对宏观偏析影响的数值模拟 |
| 2. | Biaxial interference figure 二轴晶干涉图 |
| 3. | Electromagnetic constrained forming technology and the formation mechanism of its product : equiaxed grain structure 电磁约束成型技术及所制备材料等轴晶组织的形成机制 |
| 4. | The results show that temperature gradient on the front edge of solidified shell in combined mold can be reduced and the proportion of equiaxial crystal of billet is more than 80 % 结果表明:复式结晶器能够降低钢液凝固前沿的温度梯度,从而使铸坯的等轴晶率超过80 % 。 |
| 5. | 4 . after continuously heated and isothermally soaked , the equiaxed grain , as the result of the recrystallization , was the necessary texture condition of the semi - solid grain ' s globalization processing 4 、连续升温和等温保温过程中再结晶形成等轴晶,为半固态晶粒球状化提供了必西安理工大学硕士学位论文要的组织条件 |
| 6. | The microstructure of lamellae pearlite has evolved ultrafine cementite particles throughout the ferrite matrix uniformly after five passes . the ferrite matrix is homogeneous grains , average grain size is - 0 . 3 m . 2 变形五道次后,片层状的珠光体组织演变成了超细的渗碳体颗粒均匀分布于铁素体基体的组织,铁素体基体为均匀的等轴晶,平均晶粒大小为0 . 3 m 。 |
| 7. | The effect that combined mold can increase the proportion of equiaxial crystal of billet was confirmed by comparing its heat transfer character with that of traditional mold and measuring the macrostructure of the billets produced by these two molds 摘要为了验证复式结晶器在提高铸坯等轴晶率方面的作用,分析比较了复式结晶器和传统结晶器的传热特征,并检测了两种结晶器所浇注铸坯的宏观组织。 |
| 8. | The refractive indices at 12 wave lengths in the visible region were measured with the minimum deviation method , showing that kabo is a negative uniaxial optical crystal with moderate birefringence . the measurement of nonlinear optical coefficient dn = 0 . 45pm / v 用最小偏离法测试了可见光区十二个波段处的晶体折射率,结果表明kabo晶体属负单轴晶,具有适中的双折射率。晶体的非线性光学性质测试显示,该晶体非线性光学系数为d _ ( 11 ) = 0 . 45pm / v ,可实现相位匹配。 |
| 9. | The globalization course was that the preformed texture recrystallized and became the granular equiaxed grain , when the temperature rose and the holding time prolonged , the granular grain melted at some area and at the liquid - solid interface the grain globalized at the role of the curvature overheated 过程机制为:挤压形变组织在加热过程中首先发生再结晶长大变为颗粒状等轴晶;随温度升高和保温时间延长,等轴晶发生局部熔化,液固界面的曲率过热使晶粒外形向球状转变。 |
| 10. | Influenced by the alternating current field , all of the eutectic microstructure of al - 20si - 5fe - ti alloy changed into very small particles which is well - distributed on the base of a - al . electromagnetic stirring stimulates the forming of equiaxed crystal in al - 20si - 5fe - mn alloy . primary iron - phase is transformed from thick needle into smooth block 电磁搅拌促进al - 20si - 5fe - xmn合金中等轴晶的生成,初生富铁相由原来粗厚的片状物转化成比较圆整的块状,共晶组织中铁相主要以较短的针片状存在。 |