as-cast alloy造句

• The ' peak time of alloy made by mlsd is 6 hours shorter than as - cast alloy , and the peak strength is up to 420mpa
  多层喷射沉积a卜s一cz mg合金的峰时效时间较铸态合金提前约6小时，峰值强度为420mpa ， as 361
• The principle of the effect of zr additions on the microstructure and phase composition of as - cast alloys is discussed detailedly by establishing appropriate model , which makes progress in theoretical study
  并通过模型的建立，对其作用原理进行了详细的分析，在理论研究上有所突破。
• Increasing the cooling velocity and additions of nb and zr can refine the a - fe dendrites in as - cast alloys , decrease the amount of a - fe phase after homogenization treatment . as a result , the magnetic . properties were improved
  提高铸锭的凝固速度及添加nb和zr可以促进铸态合金内- fe相的晶粒细化及均匀分布，减少均匀后残留的- fe相，提高均匀化的效率和质量，从而提高磁体的矫顽力。
• 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。