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首页> 外文会议>Materials Science Technology Conference and Exhibition >OPTIMIZATION OF Cr AND O CONTENTS IN BETA-TYPE Ti-Cr-O ALLOYS FOR OBTAINING BOTH LARGER CHANGEABLE YOUNG'S MODULUS DURING DEFORMATION AND HIGHER STRENGTH FOR USE IN SPINAL FIXATION APPLICATIONS
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OPTIMIZATION OF Cr AND O CONTENTS IN BETA-TYPE Ti-Cr-O ALLOYS FOR OBTAINING BOTH LARGER CHANGEABLE YOUNG'S MODULUS DURING DEFORMATION AND HIGHER STRENGTH FOR USE IN SPINAL FIXATION APPLICATIONS

机译：在β型Ti-CR-O合金中优化Cr和O内容物，用于在变形中获得较大的变形杨氏模量，在脊柱固定应用中使用的更高强度

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摘要

In order to meet the requirements of patients and surgeons simultaneously for spinal fixation applications, P-type Ti-Cr based alloys with self-tunable Young's modulus due to deformation have been developed to prevent the stress-shielding effect for patients and to suppress springback for surgeons. In this study, the effects of Cr and O on the deformation-induced co phase transformation were investigated to optimize the Cr and O contents in ternary Ti-Cr-0 alloys in order to achieve a large increase in Young's modulus via deformation-induced co phase transformation with good mechanical properties. The Young's modulus of the alloys with same Cr content after solution treatment increases with increasing O content because of solid-solution strengthening effect of O. The increase in Young's modulus during cold rolling is larger for the alloys with lower O and Cr contents because larger amount of deformation-induced co phase is formed. With regard to tensile properties, the tensile strength of the alloys subjected to solution treatment increases and the elongation of them decreases with increasing O content and decreasing Cr content because of both the effects of solid-solution strengthening of O and the deformation-induced co phase strengthening.
机译：为了满足患者和外科医生的同时进行脊柱固定应用，已经开发出具有变形引起的自调谐杨氏模量的P型Ti-Cr基合金，以防止患者的应力屏蔽效果并抑制回弹外科医生。在该研究中，研究了Cr和O对变形诱导的共相转化的影响，以优化三元Ti-Cr-0合金中的Cr和O内容物，以通过变形诱导的CO来实现杨氏模量的大幅增加具有良好机械性能的相变。由于O的固溶强化效果，溶液处理后溶液治疗后具有相同Cr含量的杨氏的模量随着O的固溶效果而增加。冷轧过程中杨氏模量的增加对于具有较低o和Cr内容的合金，因为较大量形成变形诱导的共相。关于拉伸性质，进行固溶处理增加合金的拉伸强度，并将它们的伸长随O含量和降低，因为这两个固溶强化的O的效果和变形引起的Co相的Cr含量降低强化。

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