球磨时间对多孔Ti-5Cu合金微观结构和力学性能的影响

麦萍

doi:10.7513/j.issn.1004-7638.2023.04.009

球磨时间对多孔Ti-5Cu合金微观结构和力学性能的影响

doi: 10.7513/j.issn.1004-7638.2023.04.009

麦萍^{1, 2,}

1.
攀枝花学院基础医学院, 四川攀枝花 617000
2.
西华大学材料科学与工程学院, 四川成都 610039

基金项目: 四川省科技计划重点研发项目(2017GZ0417)；钒钛资源综合利用四川省重点实验室开放基金(2019FTSZ03)。

详细信息

作者简介:
麦萍，1985年出生，女，四川攀枝花人，硕士研究生，助教，主要从事医用钛及钛合金相关研究，E-mail: mai1069qi@163.com

中图分类号: TF823,TF123
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- 文章访问数: 74
- HTML全文浏览量: 18
- PDF下载量: 4
- 被引次数: 0
出版历程
- 收稿日期: 2022-10-01
- 刊出日期: 2023-08-30

Effect of ball milling time on the microstructure and mechanical properties of porous Ti-5Cu alloys

Mai Ping^{1, 2
,}

1.
College of Basic Medical Sciences, Panzhihua University, Panzhihua 617000, Sichuan, China
2.
School of Materials Science and Engineering, Xihua University, Chengdu 610039, Sichuan, China

摘要

摘要: 采用机械球磨和空间占位法经真空烧结制备生物医用多孔Ti-5Cu合金。使用扫描电子显微镜、X射线衍射仪、激光粒度仪等对球磨不同时间的金属粉末进行分析，并研究球磨时间对制备出的多孔Ti-5Cu合金微观结构和力学性能的影响。结果表明，球磨2 h时，Ti-5Cu粉末的形貌变得扁平，其平均粒径明显减小。进一步增加球磨时间仅轻微降低粉末的平均粒径。随着球磨时间的增加，制备出的具有模拟人体骨骼各向异性孔结构的多孔Ti-5Cu合金的孔隙率逐渐减小，其弹性模量和抗压强度先升高后下降。在研究的球磨时间范围内，球磨2 h的金属粉末制备出的多孔Ti-5Cu合金的弹性模量和抗压强度最高，分别为3.79 GPa和89.00 MPa。
- 多孔Ti-Cu合金 /
- 空间占位法 /
- 粉末冶金 /
- 球磨时间 /
- 力学性能
Abstract: Biomedical porous Ti-5Cu alloys were prepared by mechanical ball milling and space holder method through vacuum sintering. The metal powders ball milled with different time were analyzed by scanning electron microscopy, X-ray diffractometer and laser particle size analyzer, and the effects of ball milling time on the microstructure and mechanical properties of the porous Ti-5Cu alloy were investigated. The results showed that the morphology of Ti-5Cu powder became flat and its average particle size decreased significantly after 2 h ball milling. Further increasing the milling time only slightly reduced the average particle size of the powder. With the increase of ball milling time, the porosity of the porous Ti-5Cu alloy with anisotropic pore structure simulating human bone gradually decreased, and its elastic modulus and compressive strength first increased and then decreased. At the time point of ball milling, the elastic modulus and compressive strength of porous Ti-5Cu alloy prepared by ball milling for 2 h achieved the highest values, which were 3.79 GPa and 89.00 MPa, respectively.
- porous Ti-Cu alloy /
- space-holder method /
- powder metallurgy /
- ball milling time /
- mechanical properties

HTML全文

图 1 球磨不同时间的Ti-5Cu粉末的XRD谱

Figure 1. XRD patterns of Ti-5Cu powders ball-milled for different time

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图 2 球磨不同时间的Ti-5Cu粉末的SEM形貌

Figure 2. SEM images of Ti-5Cu powders ball-milled for different time

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图 3 球磨不同时间的Ti-5Cu粉末的粒径分布

Figure 3. Particle size distribution of Ti-5Cu powders ball-milled for different time

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图 4 球磨不同时间的粉末制备出的多孔Ti-5Cu合金的XRD谱

Figure 4. XRD patterns of porous Ti-5Cu alloys made from powders ball-milled for different time

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图 5 球磨不同时间的粉末制备出的多孔Ti-5Cu合金的纵向截面SEM形貌

Figure 5. Longitudinal cross-section SEM images of porous Ti-5Cu alloys made from powders ball-milled for different time

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图 6 球磨2 h的粉末制备出的多孔Ti-5Cu合金的SEM形貌和面扫描能谱

Figure 6. SEM image and EDX mapping of porous Ti-5Cu alloy made from powders ball-milled for 2 h

下载: 全尺寸图片幻灯片

图 7 球磨不同时间的粉末制备出的多孔Ti-5Cu合金的力学性能

Figure 7. Mechanical properties of porous Ti-5Cu alloys made from powders ball-milled for different time

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