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Microstructure regulation of titanium-oxygen alloy with high strength and excellent ductility for biomedical applications
Intermetallics ( IF 4.4 ) Pub Date : 2022-07-05 , DOI: 10.1016/j.intermet.2022.107648
Zeyun Cai, Jiayin Chen, Zhen Zhang, Kun Li, Xinxin Yang, Guoqiang Xie

Oxygen solid solution reinforced Ti–O alloys with high strengths and good ductility were designed and synthesized via mechanical milling and spark plasma sintering (SPS) processes. The grain size and dispersion state of the Ti–O alloys were optimized by regulating the milling time of the composite powders. Outstanding properties were achieved by 4 h milling with a yield strength of 1082 MPa, 100% higher than that of commercially pure titanium (CP–Ti). According to the quantified results of the strengthening mechanism, fine grains are responsible for the balance of superior strength and ductility of the Ti–O alloy.



中文翻译:

生物医学应用中高强度高延展性钛氧合金的显微组织调控

通过机械铣削和放电等离子烧结 (SPS) 工艺设计和合成了具有高强度和良好延展性的氧固溶体增强 Ti-O 合金。通过调节复合粉末的研磨时间来优化 Ti-O 合金的晶粒尺寸和分散状态。通过 4 小时的铣削获得了出色的性能,屈服强度为 1082 MPa,比商业纯钛 (CP-Ti) 高 100%。根据强化机制的量化结果,细晶粒负责平衡 Ti-O 合金的优异强度和延展性。

更新日期:2022-07-05
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