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醫(yī)用多孔Ti-10Mo合金的制備及力學(xué)性能
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北京科技大學(xué)新材料技術(shù)研究院,北京科技大學(xué)新材料技術(shù)研究院,北京科技大學(xué)新材料技術(shù)研究院,北京科技大學(xué)新材料技術(shù)研究院,北京科技大學(xué)新材料技術(shù)研究院

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中圖分類號(hào):

TG146.2

基金項(xiàng)目:

國(guó)家自然科學(xué)基金資助(項(xiàng)目號(hào)51204015)；新金屬材料國(guó)家重點(diǎn)實(shí)驗(yàn)室開放基金資助(項(xiàng)目號(hào)2012Z-10)


The preparation and mechanical properties of porous Ti - 10 Mo alloy for biomedical applications
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State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing

Fund Project:

National Natural Science Foundation of China (50674076, 50902115); Natural Science Foundation of Shaanxi Province (2013JZ015)

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    摘要:

    以元素粉末為原料添加造孔劑碳酸氫銨,采用粉末冶金模壓燒結(jié)技術(shù)制備了多孔Ti-10Mo合金,探討了燒結(jié)工藝與造孔劑含量對(duì)合金組織、孔隙特征和力學(xué)性能的影響規(guī)律。結(jié)果表明,在1300℃燒結(jié)可制備出具有典型魏氏體組織、孔隙分布均勻的多孔Ti-10Mo合金材料；隨著造孔劑含量增加,合金孔隙率增加,孔徑變大孔壁變薄,當(dāng)造孔劑含量達(dá)到50%,孔隙結(jié)構(gòu)互相貫通,孔徑尺寸大幅增加；添加50~60%造孔劑,制備Ti-10Mo合金孔隙率為62.8%~66.9%,平均孔徑尺寸為485~545μm,其彈性模量為2.9~1.3GPa,抗壓屈服強(qiáng)度為129.2~56.1GPa。

    Abstract:

    The porous Ti-10Mo alloys from elemental powders were fabricated by powder metallurgy technique with ammonium bicarbonate as the space-holder. The effects of sintering process and space-holder content on the microstructure, porous characteristics and mechanical properties were studied. The results show that at sintering temperature of 1300℃ the porous Ti-Mo alloys with uniform microstructure and pore distribution can be produced, and the alloy exhibit a typical Widmanstatten structure. With the increase of the space-holder content, the pores become larger and the hole wall gets thinner. At or above 50wt% of space-holder, pores are interconnected, leading to forming a three-dimensional connectivity structure. When the space-holder content is in the range of 50%~60% , the alloys obtained show porosity of 62.8%~66.9%, and their elastic modulus and compressive yield strength vary from 2.9 to 1.3 GPa, and from 129.2 to 56.1 MPa, respectively.

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支玲玲,路新,孟慶宇,徐偉,曲選輝.醫(yī)用多孔Ti-10Mo合金的制備及力學(xué)性能[J].稀有金屬材料與工程,2016,45(6):1554~1558.[Zhi Lingling, Lu Xin, Meng Qingyu, XU Wei, Qu Xuanhui. The preparation and mechanical properties of porous Ti - 10 Mo alloy for biomedical applications[J]. Rare Metal Materials and Engineering,2016,45(6):1554~1558.]
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  • 收稿日期:2015-06-03
  • 最后修改日期:2015-08-26
  • 錄用日期:2015-10-13
  • 在線發(fā)布日期: 2016-10-08
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