粉末冶金超细晶医用Ti-Mo-Fe合金的制备与表征
发布时间：2019-03-01 21:08
【摘要】：以元素粉末为原料,采用机械合金化方法结合放电等离子烧结工艺制备了Ti-8Mo-(0~9)Fe合金材料,并探讨了制备工艺对球磨粉体及烧结态合金性能的影响规律。结果表明,当铁含量为3%~9%(质量分数)时,球磨10 h粉体经900℃烧结可获得高致密度、并具有超细晶结构的钛合金材料,其显微组织主要由β-Ti相基体及fcc-Ti颗粒组成,其晶粒尺寸为130~490 nm,这是在钛合金块体材料中首次制备出fcc结构Ti相。在机械合金化过程中,Fe元素的加入可显著提高合金体系的非晶形成能力,并随Fe含量增加体系非晶形成能力增强,粉末非晶相比例增加,经10 h高能球磨后,即可合成具有良好的热稳定性的非晶/纳米晶Ti-Mo-Fe复合粉末。
[Abstract]:Ti-8Mo- _ (0 / 9) Fe alloy material was prepared by mechanical alloying and spark plasma sintering with elemental powder as raw material. The influence of preparation process on the properties of ball-milled powder and sintered alloy was discussed. The results show that when the content of iron is 3% and 9% (mass fraction), the titanium alloy with ultra-fine grain structure can be obtained by sintering at 900 鈩，
本文编号：2432804
[Abstract]:Ti-8Mo- _ (0 / 9) Fe alloy material was prepared by mechanical alloying and spark plasma sintering with elemental powder as raw material. The influence of preparation process on the properties of ball-milled powder and sintered alloy was discussed. The results show that when the content of iron is 3% and 9% (mass fraction), the titanium alloy with ultra-fine grain structure can be obtained by sintering at 900 鈩，
本文编号：2432804
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