北京科技大学新材料技术研究院,北京科技大学新材料技术研究院,北京科技大学材料科学与工程学院,北京科技大学材料科学与工程学院,北京科技大学新材料技术研究院,北京科技大学新材料技术研究院
国家自然科学基金资助(项目号51204015)；新金属材料国家重点实验室开放基金资助(项目号2012Z-10)
Institute for Advanced Materials and Technology,University of Science and Technology Beijing,Institute for Advanced Materials and Technology,University of Science and Technology Beijing,School of Material Science and Engineering,University of Science and Technology Beijing,School of Material Science and Engineering,University of Science and Technology Beijing,Institute for Advanced Materials and Technology,University of Science and Technology Beijing,Institute for Advanced Materials and Technology,University of Science and Technology Beijing
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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-Mo-(0~9)Fe合金材料,并对其制备过程及性能进行了表征和分析。结果表明,当铁含量为3~9wt%时,球磨10h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,其晶粒尺寸约为130~490nm,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10h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。
Ti-Mo-(0~9) Fe alloys were processed by mechanical alloying and subsequent spark plasma sintering (SPS) from elemental powders, and the influences of preparation parameters on the performance of milled powders and sintered alloys were studied. The results show that at the Fe content range of 3~9wt.% titanium based alloys with high density and ultra-fine grain structure can be produced by SPS at 900℃ from the powders milled for 10h. The microstructure of the titanium alloys mainly consists of β-Ti phase matrix and FCC-Ti particles, and the average grain size is in the range of 130~490nm. It is the first time that titanium based alloys with face-centered cubic structure are produced. During mechanical alloying process, the addition of Fe element greatly improves the glass forming ability of the alloy system, and the ability and the volume fraction of amorphous phase in the powders are obviously enhanced as increasing Fe content. After high-energy ball-milling for 10h, amorphous/nanocrystalline Ti-Mo-Fe composite powders are found to exhibit favorable thermostability.
引用本文
徐伟,路新,夏青,韩刚,王涛,曲选辉.粉末冶金超细晶医用Ti-Mo-Fe合金的制备与表征[J].稀有金属材料与工程,2017,46(5):1393~1398.[Xu Wei, Lu Xin, Xia Qing, Han Gang, Wang Tao, Qu Xuanhui. Fabrication and characteristion of PM Ultrafaine grainde Ti-Mo-Fe alloys for biomedical application[J]. Rare Metal Materials and Engineering,2017,46(5):1393~1398.]
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历史
- 收稿日期:2015-01-23
- 最后修改日期:2015-07-29
- 录用日期:2015-09-07
- 在线发布日期: 2017-09-27