| 1. | Effect of co on as - cast microstructure of al - 5 fe alloy
合金铸态组织的影响 |
| 2. | Primary analyses of cast microstructure design of high chrome white cast iron grinding ball
浅析高铬白口铸铁磨球的铸态组织设计 |
| 3. | Casting - state structure
铸态组织 |
| 4. | Production and control of internal stress in grinding balls of high chromium white cast iron
浅析低铬白口铸铁磨球的铸态组织设计 |
| 5. | Pure rare earth elements , lanthanum and cerium , are added to pure copper , then the inner mechanism and influence of rare earth addition on its absorptivity in copper casting microstructure specific resistance and mechanical properties are studied in this paper
在纯铜中加入纯稀土元素la 、 ce ，研究稀土元素在纯铜中的作用机理、吸收率的影响因素以及稀土元素对铸态组织、导电性、力学性能的影响。 |
| 6. | Through analyzing the phase composition and microstructure of sm2fe17 - xnbx alloys ( x = 0 . 5 , 1 , 2 , 3 ) , we study the influence of the addition of element nb on the microstructure of sm2fe17 alloys . the results show that the as - cast structure of sm2fe17 - xnbx alloys can be improved effectively
本文重点研究了添加过渡族nb元素对sm - fe合金相组成和微结构的影响，实验研究发现：添加微量的nb元素可以有效的改善sm - fe合金铸态组织的显微结构。 |
| 7. | When the atomic ratio of nb is one , the structure is homogeneous and almost composed of the single sm2fe17 phase . it ' s nearly the same structure as that after annealing . so it can reduce the production cost and increase the stability of magnetic properties
当nb的原子比为1时的铸态组织基本为均匀的接近单相的sm _ 2fe _ ( 17 )组织，已接近于退火后的组织，从而可以避免冗长的均匀化退火化过程而直接用于制造永磁体，极大的降低了生产成本，并能有效的提高磁性能的稳定性。 |
| 8. | The amount of nb3si / nb5si3 increases , their morphology tends to be more regular , their distribution becomes more homogeneously with the increasing of withdrawing rate . the microstructure is better oriented along the longitudinal axis of the samples when the withdrawing rate is between 0 . 6 and 6 . 0mm / min . at the same withdrawing rate , the microstructure changes from the beginning part to the ending part of the samples
铌?硅基rmics材料原始铸态组织由初生nb基固溶体和在其间分布的nb基固溶体+硅化铌共晶团组成；随着抽拉速率的增大，定向凝固共晶组织中硅化铌强化相细化、数量增多、分布趋于规则和均匀，定向效果显著；在相同抽拉速率条件下，区熔试样的组织从起始段到终止段发生了改变。 |
| 9. | By analyzing the microstructure of as - cast alloys with different surplus of samarium added , the optimum surplus of samarium is decided . by comparing the microstructure of the alloys annealed for different time , the ideal and economical annealing time is confirmed . the microstructure and phase composition of alloys during the whole preparation of sm2fe17nx are analyzed using the scanning electron micrograph with energy - dispersive x - ray analysis and x - ray diffraction patterns
本论文首先就熔炼工艺参数对铸态组织微结构的影响进行了探讨，并制定出一套较为合适的熔炼工艺；通过对不同钐加入量的铸态组织微观结构的观察分析，确定了原料配置过程中钐的最佳补偿量；通过对采用不同退火时间的合金组织进行比较，确定了理想、经济的退火时间；同时还利用扫描电子显微图像和x射线衍射图谱，比较了整个制备过程中，试样微结构和相组成的变化情况。 |
| 10. | The phase composition and microstructure of sm - fe - zr alloy with different amount of zr are analyzed and the effect of zr content on the microstructure of as - cast sm - fe - zr alloy is studied . the results indicate that microstructure of as - cast sm - fe - zr alloy is improved obviously with 1 . 0at % zr added , and that the long - time high temperature homogenization is unnecessary for the alloys with this microstructure . by this way , the purpose of the research to decrease the cost of preparation and optimize process is achieved
分析了不同zr含量的sm - fe - zr合金的相组成和微结构，研究了zr含量对铸态组织的影响，结果表明，添加1 . 0at的zr可以明显改善合金的铸态组织，从而可以避免昂长的高温均匀化退火过程，取得了降低制造成本和优化工艺的效果。 |
