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首页> 外文期刊>Journal of Materials Engineering and Performance >Impact of Cryogenic Treatment on Mechanical Behavior and Microstructure of Ti-6Al-4V ELI Biomaterial
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Impact of Cryogenic Treatment on Mechanical Behavior and Microstructure of Ti-6Al-4V ELI Biomaterial

机译：低温处理对TI-6AL-4V ELI生物材料力学行为和微观结构的影响

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摘要

Ti-6Al-4V with its ELI variant is a potential biomaterial for structural implants. However, its poor resistance to plastic shearing results in poor tribological properties that hinders its widespread use in biomedical implants. Cryogenic treatment being an established technique for improving wear resistance and other mechanical properties of ferrous materials is applied on Ti-6Al-4V ELI alloy. To ensure comprehensive investigations, the widely studied microstructures of Ti-6Al-4V ELI, i.e., lamellar, martensite, two variants of bimodal and mill annealed are considered in this work. Deep cryogenic treatment at the soaking temperature (-196 degrees C) for 24 h soaking time followed by tempering has been applied. The impact of cryogenic treatment has been assessed in terms of changes in the mechanical behavior including wear resistance, hardness, tensile properties and impact strength. The alterations in mechanical behavior due to cryogenic treatment are correlated with microstructure evolution. Cryogenic treatment has caused significant improvement in mechanical behavior of Ti-6Al-4V ELI alloy.
机译：Ti-6Al-4V与其ELI变体是结构植入物的潜在生物材料。然而，它对塑料剪切的耐受性差导致摩擦学性质的差，阻碍了其在生物医学植入物中的广泛使用。在Ti-6Al-4V Eli合金上施加低温处理是改善耐磨料和物质的耐磨料和其他机械性能的技术。为确保全面的调查，在这项工作中考虑了综合研究的Ti-6Al-4V Eli，即层层，马氏体，两种双峰和磨机的两种变体的微观结构。在浸泡温度（-196℃）下深冷处理24小时浸泡时间，然后施加回火。在包括耐磨性，硬度，拉伸性能和冲击强度的机械行为的变化方面已经评估了低温处理的影响。由于低温处理导致的机械行为的改变与微观结构演化相关。低温处理导致Ti-6Al-4V Eli合金的机械性能显着改善。

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