Microstructures and mechanical properties of Ti–Mo alloys cold-rolled and heat treated

Zhou, Yangfan; Luo, Dongmei

doi:10.1016/j.matchar.2011.07.010

Cited by 113 publications

(43 citation statements)

References 38 publications

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“…Through these curves, it was found that the alloys showed a phenomenon known as "double yield point", which may be associated with the shape memory effect or superelasticity at room temperature (Zhang et al, 2013a;Zhou and Luo, 2011). It is known, in the literature, that ȕ-type titanium alloys exhibit a martensitic transformation from the ȕ phase to the hexagonal martensite (Į') or to the orthorhombic martensite (Į") depending on the alloy composition (Kim et al, 2006b).…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…The reversal from Į" to ȕ results in the shape memory effect or superelasticity in ȕ-type Ti alloys (Kim et al, 2006b). Therefore, it is estimated that, during the tensile test, the ȕ phase has undergone a stress-induced martensitic transformation (SIMT), which is responsible for the double yield strength (Zhou and Luo, 2011). In fact, the stress-strain curves exhibited a profile which was typical of alloys that show SIMT with four distinct stages for Ti-35Nb-0.35Si alloy, as shown in Figure 12.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…However, the titanium alloys currently in use also exhibit a high elastic modulus (110 GPa) in comparison to that of the human bone elastic modulus (10-30 GPa), fact that may cause the stress-shielding phenomenon and result in the premature failure of the implant; This factor, in turn, is considered to be a major cause of revision surgeries (Zhou and Luo, 2011;Zhou and Niinomi, 2009;Zhentao and Lian, 2006;Hao et al, 2006). As a result, during the last decades, increasing attention has been given to the development of new type-ȕ titanium alloys, they are assumed to be possible substitutes for the most widely used alloy in orthopedic applications -Ti-6Al-4V alloy (Niinomi et al, 2012;Gabriel et al, 2012;Kim et al, 2006a;Guo et al, 2010;Lopes et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of Si addition on the microstructure and mechanical properties of Ti–35Nb alloy for applications in orthopedic implants

Tavares

Ramos

Blas

et al. 2015

Journal of the Mechanical Behavior of Biomedical Materials

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Section: Mechanical Propertiesmentioning

confidence: 99%

Section: Mechanical Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of Si addition on the microstructure and mechanical properties of Ti–35Nb alloy for applications in orthopedic implants

Tavares

Ramos

Blas

et al. 2015

Journal of the Mechanical Behavior of Biomedical Materials

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“…Simultaneously, a more porous structure always suffers more corrosion than a less porous one. 23) In this study, the lowest I corr (1.87 × 10…”

Section: Effect Of the Ni Content And Sintering Temperature On Corrosmentioning

confidence: 55%

Change in Microstructure, Mechanical Strength and Corrosion Resistance of Ti-8Mo-xNi Alloys through Various Sintering Temperatures

et al. 2016

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In this study, three different powders are mixed and used to produce Ti-8Mo-xNi alloys in three different proportions: Ti-8Mo-4Ni, Ti8Mo-6Ni and Ti-8Mo-8Ni. The Ti-Mo-Ni alloys simultaneously undergo various vacuum sintering temperatures of 1125, 1150, 1175 and 1200 C, respectively. The experimental results show that the Ti-8Mo-8Ni alloys acquire a higher sintering density (98.9%) and hardness (52.1 HRC) after sintering at 1175 C for 1 h. However, due to the grain growth and increased amount of nickel in the Ti-8Mo-8Ni alloys, the transverse rupture strength (TRS) shows an obvious decrease (as compared with Ti-8Mo-6Ni, the TRS value decreasing from 1177 to 685 MPa). Consequently, the suitable Ni content of the Ti-8Mo-6Ni alloys which proves advantageous to the TRS results from the uniform distribution of the TiNi intermetallic compound precipitates within the β matrix. The sintered Ti-8Mo-8Ni alloys also possess the lowest corrosion current (I corr = 1.87 × 10 −7 A·cm −2) and highest polarization resistance (56084 Ω·cm 2 ) in 3.5 mass% NaCl solutions. This result con rms that sintered Ti-8Mo-8Ni alloys effectively improve corrosion resistance.

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“…Molybdenum is considered a safe alloying element and an excellent ␤-phase stabiliser. Increasing the amount of the ␤-phase leads to a decrease in the elastic modulus, an increase in the corrosion resistance and an improvement in the tissue response of Ti alloys [7][8][9]. Ti-Mo alloys exhibit low yield strength and good ductility, and they are more suitable for biomedical applications than conventional biomaterials because of their better mechanical compatibility.…”

Section: Introductionmentioning

confidence: 99%

Modification of a Ti–Mo alloy surface via plasma electrolytic oxidation in a solution containing calcium and phosphorus

Simka

Krząkała

Korotin

et al. 2013

Electrochimica Acta

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a b s t r a c tInvestigations into the surface modification of a Ti-15Mo alloy via plasma electrolytic oxidation are reported. The oxidation process was conducted in a solution containing Ca(H 2 PO 2 ) 2 , H 3 PO 4 , or (HCOO) 2 Ca. Anodisation was performed at voltages in the range of 100-400 V. The morphology of the sample surface did not change during alloy oxidation at lower voltages. Higher voltages led to the incorporation of calcium and phosphorus or of calcium only into the formed oxide layer and to significant modification of the surface morphology. Based on the SEM and EDX analysis results, a set of samples was selected for further investigations. To study the surface of the Ti-Mo alloy after anodic oxidation, we used scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), thin-layer X-ray diffraction (TL-XRD), and X-ray photoelectron spectroscopy (XPS). The electrochemical characteristics of the modified alloy in Ringer's solution were determined. Anodisation results in a considerable increase in the corrosion resistance of the Ti-15Mo alloy.

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Microstructures and mechanical properties of Ti–Mo alloys cold-rolled and heat treated

Cited by 113 publications

References 38 publications

Influence of Si addition on the microstructure and mechanical properties of Ti–35Nb alloy for applications in orthopedic implants

Influence of Si addition on the microstructure and mechanical properties of Ti–35Nb alloy for applications in orthopedic implants

Change in Microstructure, Mechanical Strength and Corrosion Resistance of Ti-8Mo-xNi Alloys through Various Sintering Temperatures

Modification of a Ti–Mo alloy surface via plasma electrolytic oxidation in a solution containing calcium and phosphorus

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