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Post-Fatigue Residual Strength of Abrasiveless Waterjet-Treated Ti6Al4V as a Biomaterial.

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Title: Post-Fatigue Residual Strength of Abrasiveless Waterjet-Treated Ti6Al4V as a Biomaterial.
Authors: Xie, Jing1 (AUTHOR) jxie@bit.edu.cn, Cao, Luqing1 (AUTHOR), Qiao, Yang2 (AUTHOR), Gao, Punuo1 (AUTHOR), Yang, Liwei1 (AUTHOR), Wang, Zu'an1 (AUTHOR), Qi, Yuanshen3 (AUTHOR), Chen, Pengwan1 (AUTHOR), Shemtov-Yona, Keren4,5 (AUTHOR), Rittel, Daniel4 (AUTHOR)
Source: JOM: The Journal of The Minerals, Metals & Materials Society (TMS). Jul2025, Vol. 77 Issue 7, p5374-5387. 14p.
Subjects: Surface topography, Fatigue testing machines, Tensile tests, Materials testing, Surface analysis, Water jets
Abstract: Ti6Al4V, a material frequently used in biomedical applications, has few reports on its post-fatigue mechanical behavior, which is essential for long-term stability. To investigate these aspects, Ti6Al4V specimens underwent abrasiveless pure waterjet treatment, followed by random spectrum fatigue and post-fatigue tensile tests. The surface microstructure and topography were characterized before and after the random spectrum fatigue tests to explain the material's post-fatigue mechanical behavior. The results showed that the random spectrum fatigue test altered the mechanical behavior of Ti6Al4V specimens by reducing their ductility, as an indication that the random spectrum fatigue test induced the accumulation of internal defects. After two steps of random spectrum fatigue tests, the fracture surfaces of the uniaxial tensile specimens displayed a decrease in the fibrous region and an increase in the shear lip region. The analysis of surface areal roughness parameters, fractography, and average grain size as well as orientation all revealed that, for the currently selected waterjet processing parameters, the influence of waterjet is greater on the surface topography rather than on the mechanical properties. Random spectrum fatigue loading altered the surface topography, resulting in a roughened, peak-dominant profile with an increased auto-correlation length. [ABSTRACT FROM AUTHOR]
Copyright of JOM: The Journal of The Minerals, Metals & Materials Society (TMS) is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Post-Fatigue Residual Strength of Abrasiveless Waterjet-Treated Ti6Al4V as a Biomaterial.
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  Data: Ti6Al4V, a material frequently used in biomedical applications, has few reports on its post-fatigue mechanical behavior, which is essential for long-term stability. To investigate these aspects, Ti6Al4V specimens underwent abrasiveless pure waterjet treatment, followed by random spectrum fatigue and post-fatigue tensile tests. The surface microstructure and topography were characterized before and after the random spectrum fatigue tests to explain the material's post-fatigue mechanical behavior. The results showed that the random spectrum fatigue test altered the mechanical behavior of Ti6Al4V specimens by reducing their ductility, as an indication that the random spectrum fatigue test induced the accumulation of internal defects. After two steps of random spectrum fatigue tests, the fracture surfaces of the uniaxial tensile specimens displayed a decrease in the fibrous region and an increase in the shear lip region. The analysis of surface areal roughness parameters, fractography, and average grain size as well as orientation all revealed that, for the currently selected waterjet processing parameters, the influence of waterjet is greater on the surface topography rather than on the mechanical properties. Random spectrum fatigue loading altered the surface topography, resulting in a roughened, peak-dominant profile with an increased auto-correlation length. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of JOM: The Journal of The Minerals, Metals & Materials Society (TMS) is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s11837-025-07331-0
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        Text: English
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      – SubjectFull: Surface topography
        Type: general
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      – SubjectFull: Tensile tests
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      – TitleFull: Post-Fatigue Residual Strength of Abrasiveless Waterjet-Treated Ti6Al4V as a Biomaterial.
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              Text: Jul2025
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