Use of Spark Plasma Sintering for Fabrication of Porous Titanium Aluminide Alloys from Elemental Powders
Use of Spark Plasma Sintering for Fabrication of Porous Titanium Aluminide Alloys from Elemental Powders
复制标题
使用火花等离子烧结从元素粉末制造多孔铝化钛合金
DOI：
10.1080/10426914.2015.1048469
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发表时间：
2016-04
影响因子：
4.8
通讯作者：
Z.T. Fan
中科院分区：
文献类型：
--
作者：
P. Tao;J. Jiang;R. Sun;Z.T. Fan
使用氯化钠作为空间支架，通过放电等离子烧结（SPS）加上钛和铝元素粉末的后热处理来制造多孔钛铝合金。通过 SPS 在 600°C/10 MPa 下实现各种互连孔隙率，然后用水溶解以去除氯化钠。然而，钛和铝之间的相变并未完成。采用无压SPS和真空退火两种后热处理来获得相变。结果表明，真空退火过程中，大部分之前形成的气孔被保留，并且完成了相变，形成了γ相和α2相。而无压SPS后，大量孔隙消失。
Porous titanium aluminide alloys were fabricated by spark plasma sintering (SPS) plus postheat treatment from titanium and aluminum elemental powders using sodium chloride as the space holders. Various interconnected porosities were achieved by SPS at 600°C/10 MPa, followed by water dissolution to remove sodium chloride. The phase transformation between titanium and aluminum, however, was not accomplished. Two kinds of postheat treatment, pressureless SPS and vacuum annealing, were employed to obtain the phase transformation. Results showed that most of the pores formed before were retained and the phase transformation, formation of γ and α2 phases, were completed during vacuum annealing. Whereas a great deal of pores were disappeared after pressureless SPS.
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影响因子：
4.4
作者：
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DOI：
10.1016/0001-6160(89)90162-4
发表时间：
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期刊：
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