Influence of directional solidification variables on primary dendrite arm spacing of Ni-based supera

来源 :中国铸造:英文版 | 被引量 : 0次 | 上传用户:lxy901123
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
DZ125 superalloy 的主要树突形态学和间距在高热的坡度下面在方向性的团结期间被观察了大约 500 K/cm。结果表明到有方向性的团结冷却的增加的 35.8 m 的从 94 m 的主要树突手臂间距减少从 2.525 K/s 评价到 36.4 K/s。主要树突手臂间距的回归方程 1 对使率凉下来是 1=0.013 (GV )-0.32。Kurz/Fisher 模型和与试验性的数据相当好的 Hunt/Lu 模型一致的预言。在主要树突手臂间距上的可变热坡度下面的方向性的团结率的影响也被调查了。
其他文献
Hüttenes-Albertus (HA) has concluded a cooperationagreement with the Slovenian company Termit fox" theproduction of foundry cores and core packages. As ofJuly
机械颤动被用于一个失去的泡沫演员组(LFC ) 的团结与不同山峰加速,机械颤动的 356 铝 alloy.Effects 在铸造物的机械性质上在 -Al 阶段的尺寸和形态学上,并且也被学习。当颤动
In order to avoid contamination from the crucible and to modify the structures,a new solidification method based on cold crucible technology was used to prepare
期刊
Intensive melt shearing has a significant grain refining effect on some light alloys.However,the persistence of the grain refining effect during isothermal hold
Different contents of Ni(0.3wt.%to 1.2wt.%)were added to the QT400-18L ductile iron to investigate the effect of Ni addition on the impact toughness of cast duc
期刊
In this work, the influence of graphite on the ball-milled TiCx was studied. The results show that the lattice parameter of TiCx is increased when TiCx particle
One important problem in casting wrought aluminum alloys is the high tendency to the formation of hot tears in the solidification process.By using semi-solid me
In the present study, the tested hypereutectic Al-21 wt.%Si alloys were prepared by modifying the melt using different proportions of P and Ce, and then applyin
期刊
批评的点和 time-temperature-transformation (TTT ) 为在一台水平离心的扔机器上扔的高速度的钢的等温的转变图的曲线在学习试验性地被决定了。在离心的扔的高速度钢(HSS )