Influence of Defects on High Cycle Fatigue Response of Ti45Nb Biocompatible Alloy

机译：缺陷对Ti45Nb生物相容性合金高周疲劳响应的影响

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The high cycle fatigue response of Ti-45Nb alloy was investigated by using an ultrasonic fatigue testing system. The effect of notch geometry on the fatigue response was studied on samples with different circumferential grooves. The experiments showed a decrease of fatigue notch sensitivity with decreasing the notch radius. Finite element analysis (FEA) was conducted for calculation of the stress distribution in the samples and interpretation of the experimental results. Further, the lifetime of the alloy showed a strong dependency on the location of the defects and microstructural inhomogeneities. It was observed that at the same stress amplitude, early failure was caused by surface defects, while those with a longer lifetime failed due to cracks originating from internal flaws.

机译：利用超声疲劳测试系统研究了Ti-45Nb合金的高周疲劳响应。在具有不同圆周凹槽的样品上研究了缺口几何形状对疲劳响应的影响。实验表明疲劳缺口敏感性随着缺口半径的减小而降低。进行了有限元分析（FEA），以计算样品中的应力分布并解释实验结果。此外，合金的寿命显示出对缺陷位置和微观结构不均匀性的强烈依赖性。据观察，在相同的应力振幅下，早期缺陷是由表面缺陷引起的，而寿命较长的那些是由于内部缺陷引起的裂纹而导致的。

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来源
《Materials structure amp; micromechanics of fracture VIII》|2016年|337-340|共4页
会议地点 Brno(CZ)
作者
Mitra Delshadmanesh; Golta Khatibi; Martin Lederer; Michael Zehetbauer; Herbert Danninger;
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作者单位

Institute of Chemical Technologies and Analytics, Vienna University of Technology, Getreidemarkt 9/164, A-1060 Vienna, Austria;

Institute of Chemical Technologies and Analytics, Vienna University of Technology, Getreidemarkt 9/164, A-1060 Vienna, Austria;

Institute of Chemical Technologies and Analytics, Vienna University of Technology, Getreidemarkt 9/164, A-1060 Vienna, Austria;

Physics of Nanostructured Materials, Faculty of Physics, University of Vienna, Boltzmanngasse 5, 1090 Wien, Austria;

Institute of Chemical Technologies and Analytics, Vienna University of Technology, Getreidemarkt 9/164, A-1060 Vienna, Austria;

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原文格式 PDF
正文语种 eng
中图分类
关键词
Titanium alloy; biomaterials; high cycle fatigue; notch sensitivity; defects;

机译：钛合金生物材料高循环疲劳；缺口灵敏度缺陷;

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专利

1. Influence of Defects on High Cycle Fatigue Response of Ti45Nb Biocompatible Alloy [J] . Mitra Delshadmanesh, Golta Khatibi, Martin Lederer, Diffusion and Defect Data. Solid State Data, Part B. Solid State Phenomena . 2016,第Null期

机译：缺陷对Ti45NB生物相容性合金高循环疲劳反应的影响
2. Influence of defects on the very high cycle fatigue behaviour of forged aeronautic titanium alloy [J] . MATEC Web of Conferences . 2014,第2014期

机译：缺陷对锻造航空钛合金超高周疲劳行为的影响
3. Influence of sub-surface defects on low-cycle fatigue life in a gas turbine disc alloy at elevated temperature [J] . J. Byrne, N.Y.K. Kan, I.W. Hussey International Journal of Fatigue . 1999,第2期

机译：表面缺陷对高温下燃气轮机圆盘合金低周疲劳寿命的影响
4. Influence of Defects on High Cycle Fatigue Response of Ti45Nb Biocompatible Alloy [C] . Mitra Delshadmanesh, Golta Khatibi, Martin Lederer, International Conference on Materials Structure Micromechanics of Fracture . 2017

机译：缺陷对Ti45NB生物相容性合金高循环疲劳反应的影响
5. DEFECT STRUCTURE ANALYSIS IN CORROSION FATIGUED ALUMINUM-2024-T4 AND FATIGUED TITANIUM -6 ALUMINUM -4 VANADIUM ALLOYS. [D] . TAKEMOTO, TOSHIHIKO. 1982

机译：腐蚀疲劳的Aluminum-2024-T4和疲劳的钛-6铝-4钒合金的缺陷组织分析。
6. Effect of Low Cycle Fatigue Predamage on Very High Cycle Fatigue Behavior of TC21 Titanium Alloy [O] . Baohua Nie, Zihua Zhao, Yongzhong Ouyang, 2017

机译：低周疲劳预损伤对TC21钛合金超高周疲劳行为的影响
7. Design of a suitable shape of test bars used for HCF (high cycle fatigue) and LCF (low cycle fatigue) and elimination of internal defects for reduction of their influence [O] . Hemala Robert 2014

机译：设计用于HCF（高循环疲劳）和LCF（低循环疲劳）的测试棒的合适形状，并消除内部缺陷以减少其影响
8. Influence of Subsurface Defects on Fatigue Properties of Titanium Alloys. [R] . blackburn, m. j. law, c. c. 1977

机译：表面缺陷对钛合金疲劳性能的影响。

Influence of Defects on High Cycle Fatigue Response of Ti45Nb Biocompatible Alloy

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