Microstructure and interface reaction of titanium alloys casting<br /> into different mould shells<br />
Journal Title: Science Paper Online - Year 2010, Vol 5, Issue 4
Abstract
Special mould shells for precision-casting titanium alloys were prepared with the same binder and different mould shell materials of ZrO2 and Al2O3. Ti-6Al-2Zr-1Mo-1V(BT20), Ti-6Al-4V(TC4) and pure titanium (TA2) were melt and cast into the special mould shells with an LZ-5 centrifugal casting machine. The effects of mould shell materials on the microstructure of the titanium alloys were studied. The results showed that the microstructures of the titanium alloys prepared with different mould shells were different specially. The microstructure of the alloys prepared with the ZrO2 mould shell was finer than that with the Al2O3. The interface reaction of the titanium alloys with the mould shells was investigated by means of line scanning. Compared with the ZrO2 mould shell, the reaction between the Al2O3 mould shell and the titanium alloys was severe, the reaction layers were continuous and the thickness of the reaction layers was about 30 to 40 μm. The reaction layers of the ZrO2 mould shell were thinner and their thickness was about 1/3 as large as that of the Al2O3 mould shell.
Authors and Affiliations
Yuyong Chen, Shulong Xiao, Lijuan Xu
Keywords
Related Articles
- EP ID EP84864
- DOI -
- Views 130
- Downloads 0
血藤对口腔细菌致龋性影响的实验研究
目的：通过体外系列抗龋实验研究血藤对口腔细菌生长、产酸、产胞外多糖的影响，探讨血藤是否能有效调节口腔菌群生态平衡。方法：测定血藤对三种龈上菌斑优势菌——变形链球菌、粘性放线菌和血链球菌的最低抑菌浓度MIC。再测定低于MIC的4个...
转盘萃取塔放大效应及其原因的探讨
本文采用按基本原理进行设计的方法，对三种不同直径（内径分别为0.05 m、0.29 m和2.4 m）的四种转盘塔的放大效应及其成因进行了探讨。计算结果表明，大型塔与小型塔相比，其特性速度、两相表观速度较高，液滴直径较大，分散传质单元高度...
光子晶体光纤产生相干反斯托克斯拉曼<br /> 散射显微镜光源的数值研究<br />
本文模拟熔石英芯光子晶体光纤(PCF)的色散性质，并利用慢变包络近似的标量波理论计算中心波长800.9nm的飞秒激光脉冲在两种不同色散性质的PCF中传输产生的超连续频谱，比较分析了阶色散、自变陡和脉冲内拉曼散射对超连续谱特性的影响，考...
Investigation on the mechanical properties and microstructure<br /> of new type of fire-resistant steel containing B<br />
The mechanical properties and microstructure of new type of fire-resistant steel at different states are investigated by using optical microscopy, scanning electron microscopy and transmission electron microscopy, and th...
一种估计LFM信号参数的快速算法及其推广
提出一种估计线性调频(LFM)信号参数的快速算法，该算法利用计算信号的WVD(wigner-ville distribution)得到其时间－频率值的二维分布，进而通过计算不同的时间采样点所对应的频率值来获取LFM信号的调频斜率以及初始频率的估计。算法的实现...