Oxygen diffusion in Ti–10Mo alloys measured by mechanical spectroscopy

Nogueira, R. A.; Grandini, Carlos Roberto; Claro, Ana Paula Rosifini Alves

doi:10.1007/s10853-008-2706-y

Cited by 15 publications

(19 citation statements)

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“…The reduction in the value of the elasticity modulus can be related to the weakening of atomic bond forces due to interstitial oxygen [ 9 , 31 ]. Theoretically, in Ti alloys in which the predominant phase is α or α’, oxygen atoms are not free to move, and this interstitial immobility generates a decrease in the elasticity modulus [ 32 , 33 ]. However, the effect of interstitial oxygen in the elasticity modulus is not yet fully understood, distinct behaviors being found in Ti-Mo [ 33 , 34 ], Ti-Nb [ 19 ] and Ti-Ta [ 35 ].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Small Quantities of Oxygen in the Structure, Microstructure, Hardness, Elasticity Modulus and Cytocompatibility of Ti-Zr Alloys for Dental Applications

et al. 2014

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The mechanical properties of Ti alloys are changed significantly with the addition of interstitial elements, such as oxygen. Because oxygen is a strong stabilizer of the α phase and has an effect on hardening in a solid solution, it has aroused great interest in the biomedical area. In this paper, Ti-Zr alloys were subjected to a doping process with small amounts of oxygen. The influence of interstitial oxygen in the structure, microstructure and some selected mechanical properties of interest for use as biomaterial and biocompatibility of the alloys were analyzed. The results showed that in the range of 0.02 wt% to 0.04 wt%, oxygen has no influence on the structure, microstructure or biocompatibility of the studied alloys, but causes hardening of the alloys, increasing the values of the microhardness and causing variation in the elasticity modulus values.

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Section: Introductionmentioning

confidence: 99%

The Influence of Small Quantities of Oxygen in the Structure, Microstructure, Hardness, Elasticity Modulus and Cytocompatibility of Ti-Zr Alloys for Dental Applications

et al. 2014

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“…2 Recently, alloy containing b phase stabilizers elements (niobium, tantalum, zirconium, and molybdenum) with lower values of Young's modulus have been considered attractive for employment as biomaterials, among which the Ti-Mo alloy systems stand out. [7][8][9][10][11][12][13] The Ti-Mo alloy systems were studied with an emphasis on their microstructure and mechanical properties, specifically on phase transformations, 10 mechanical resistance, 14 and corrosion. 15 However, there are few studies on the processing of these alloys with specific properties, the influence of thermo-mechanical treatments, and about the effect of interstitial elements on their mechanical properties.…”

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confidence: 99%

“…15 However, there are few studies on the processing of these alloys with specific properties, the influence of thermo-mechanical treatments, and about the effect of interstitial elements on their mechanical properties. 13 Among the alloys of the Ti-Mo system, the Ti-15Mo alloy possesses excellent corrosion resistance and a good combination of mechanical properties such as fatigue, hardness, and wears resistance. This alloy demonstrates good properties for biomedical applications and is already included in the American Society for Testing and Materials; 16 however, the effects of oxygen and heat treatments on its structure and microstructure have not yet been analyzed.…”

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confidence: 99%

Structural characterization of Ti-15Mo alloy used as biomaterial by Rietveld method

Martins

Grandini

2012

Journal of Applied Physics

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The biochemical and mechanical behavior of titanium alloys has been studied extensively for a variety of applications in the aerospace and biomedical fields. In the literature, there are studies that relate the microstructure and the phases of the material with its properties; however, there is little information that quantifies each phase and relates this to its properties. In addition, little has been done to analyze the effects of oxygen and heat treatment on the alloy's structure. In this paper, the effect of doping with oxygen and the effect of heat treatments on structural properties of Ti-15Mo alloy used as biomaterials is examined using scanning electron microscopy, x-ray diffraction, and diffractogram analysis using the Rietveld method. V C 2012 American Institute of Physics. [http://dx

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“…It is also important to note that the peak temperature of damping in the current Snoek-type high-damping HEAs is approximately 100 K higher than that in traditional high-damping alloys (11,12,(31)(32)(33)(34)(35)(36)(37)(38)(39)(40)(41)(42). Because of the high configuration entropy and severely distorted lattices of HEAs (50), atomic position switches of interstitials in these matrices are impeded by the high atomic-scale distortion fields (51).…”

Section: Discussionmentioning

confidence: 99%

Snoek-type damping performance in strong and ductile high-entropy alloys

Lei

et al. 2020

Sci. Adv.

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Noise and mechanical vibrations not only cause damage to devices, but also present major public health hazards. High-damping alloys that eliminate noise and mechanical vibrations are therefore required. Yet, low operating temperatures and insufficient strength/ductility ratios in currently available high-damping alloys limit their applicability. Using the concept of high-entropy alloy (HEA), we present a class of high-damping materials. The design is based on refractory HEAs, solid-solutions doped with either 2.0 atomic % oxygen or nitrogen, (Ta0.5Nb0.5HfZrTi)98O2 and (Ta0.5Nb0.5HfZrTi)98N2. Via Snoek relaxation and ordered interstitial complexes mediated strain hardening, the damping capacity of these HEAs is as high as 0.030, and the damping peak reaches up to 800 K. The model HEAs also exhibit a high tensile yield strength of ~1400 MPa combined with a large ductility of ~20%. The high-temperature damping properties, together with superb mechanical properties make these HEAs attractive for applications where noise and vibrations must be reduced.

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Oxygen diffusion in Ti–10Mo alloys measured by mechanical spectroscopy

Cited by 15 publications

References 19 publications

The Influence of Small Quantities of Oxygen in the Structure, Microstructure, Hardness, Elasticity Modulus and Cytocompatibility of Ti-Zr Alloys for Dental Applications

The Influence of Small Quantities of Oxygen in the Structure, Microstructure, Hardness, Elasticity Modulus and Cytocompatibility of Ti-Zr Alloys for Dental Applications

Structural characterization of Ti-15Mo alloy used as biomaterial by Rietveld method

Snoek-type damping performance in strong and ductile high-entropy alloys

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