Microstructural and Mechanical Properties of β-Type Ti–Nb–Sn Biomedical Alloys with Low Elastic Modulus

Li, Peiyou; Ma, Xindi; Wang, Duo; Zhang, Hui

doi:10.3390/met9060712

Cited by 35 publications

(25 citation statements)

References 46 publications

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“…Some Ti alloys with low elastic modulus designed through [Mo] eq are shown in Table 2 . [ 19,31,33,34,36,102,103,107–111 ] Results show that the elastic modulus of Ti alloys is not only related to the [Mo] eq value but also concerned with the category of alloying elements. Therefore, the [Mo] eq models are efficient in the screening composition of certain Ti alloy systems.…”

Section: Design Methods For Low‐modulus Ti Alloysmentioning

confidence: 99%

Review of the Design of Titanium Alloys with Low Elastic Modulus as Implant Materials

Liang

2020

Adv Eng Mater

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Section: Design Methods For Low‐modulus Ti Alloysmentioning

confidence: 99%

Review of the Design of Titanium Alloys with Low Elastic Modulus as Implant Materials

Liang

2020

Adv Eng Mater

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“…SMA with martensitic phase has good shape memory effect, that is, the alloy with a specific composition can be loaded and deformed in martensitic phase state, and retain its deformed shape after unloading, and then the deformed alloy can be restored to the shape before loading when heated to the parent phase state [8]. SMA with the parent phase state has good superelasticity, that is, the strain produced by a specific component alloy under the action of external force exceeds its elastic limit variable, after unloading, the alloy can spontaneously restore to its original shape [9,10,11], and its stress-strain curve presents as non-linear. In addition, the Ti–Ni-based SMA has high damping properties, biocompatibility, and corrosion resistance, and has been applied in aerospace, machinery manufacturing, transportation, civil construction, energy engineering, biomedicine, and daily life [12,13,14,15].…”

Section: Introductionmentioning

confidence: 99%

Effect of Heat Treatment Temperature on Martensitic Transformation and Superelasticity of the Ti49Ni51 Shape Memory Alloy

Yong-shan

Meng

et al. 2019

Materials

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The martensitic transformation and superelasticity of Ti49Ni51 shape memory alloy heat-treatment at different temperatures were investigated. The experimental results show that the microstructures of as-cast and heat-treated (723 K) Ni-rich Ti49Ni51 samples prepared by rapidly-solidified technology are composed of B2 TiNi phase, and Ti3Ni4 and Ti2Ni phases; the microstructures of heat-treated Ti49Ni51 samples at 773 and 823 K are composed of B2 TiNi phase, and of B2 TiNi and Ti2Ni phases, respectively. The martensitic transformation of as-cast Ti49Ni51 alloy is three-stage, A→R→M1 and R→M2 transformation during cooling, and two-stage, M→R→A transformation during heating. The transformations of the heat-treated Ti49Ni51 samples at 723 and 823 K are the A↔R↔M/A↔M transformation during cooling/heating, respectively. For the heat-treated alloy at 773 K, the transformations are the A→R/M→R→A during cooling/heating, respectively. For the heat-treated alloy at 773 K, only a small thermal hysteresis is suitable for sensor devices. The stable σmax values of 723 and 773 K heat-treated samples with a large Wd value exhibit high safety in application. The 773 and 823 K heat-treated samples have large stable strain–energy densities, and are a good superelastic alloy. The experimental data obtained provide a valuable reference for the industrial application of rapidly-solidified casting and heat-treated Ti49Ni51 alloy.

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“…Ti alloys have been widely used in engineering structural materials and biomedical materials [1][2][3][4][5]. As engineering structural materials, Ti alloys have low density, high strength, and good corrosion resistance, and they are widely used in automotive, aerospace and other fields [1,4,5].…”

Section: Introductionmentioning

confidence: 99%

“…As engineering structural materials, Ti alloys have low density, high strength, and good corrosion resistance, and they are widely used in automotive, aerospace and other fields [1,4,5]. As biomedical materials, Ti alloys have good biocompatibility, low modulus of elasticity, and high ductility, and they are widely used in medical devices, hard tissue, and soft tissue implants [2,3,[5][6][7][8][9][10]. Among Ti-based alloys, Ti-Fe-based alloys are favored by researchers of engineering materials, functional materials and biomedical alloys, based on high strength, low density, high specific strength, and low elastic modulus [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

“…The surfaces of polished samples need to be etched for observing the microstructure. This was accomplished with a mixed solution of HF, HNO 3 , and H 2 O, and the corresponding volume ratio is 1:4:5. The microstructure of prepared samples was observed by optics microscope (OM, Shanghai Changfang Optical Instrument Co., LTD, Shanghai, China).…”

Section: Introductionmentioning

confidence: 99%

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Microstructure and Mechanical Properties of Rapidly Solidified β-Type Ti–Fe–Sn–Mo Alloys with High Specific Strength and Low Elastic Modulus

Jia

et al. 2019

Metals

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The microstructure and mechanical properties of rapidly solidified β-type Ti-Fe-Sn-Mo alloys with high specific strength and low elastic modulus were investigated. The results show that the phases of Ti-Fe-Sn-Mo alloys are composed of the β-Ti, α-Ti, and TiFe phases; the volume fraction of TiFe phase decreases with the increase of Mo content. The high Fe content results in the deposition of TiFe phase along the grain boundary of the Ti phase. The Ti 75 Fe 19 Sn 5 Mo 1 alloy exhibits the high yield strength, maximum compressive strength, large plastic deformation, high specific strength, high Vickers hardness, and large toughness value, which is a superior new engineering material. The elastic modulus (42.1 GPa) of Ti 75 Fe 15 Sn 5 Mo 5 alloy is very close to the elastic modulus of human bone (10-30 GPa), which indicating that the alloy can be used as a good biomedical alloy. In addition, the large H/E r and H 3 /E r 2 values of Ti 75 Fe 19 Sn 5 Mo 1 alloy indicate the good wear resistance and long service life as biomedical materials. Metals 2019, 9, 1135 2 of 18 strength and ductility of the Ti-Fe-based alloys [15-19]. For example, the (Ti 0.705 Fe 0.295 ) 96.15 Sn 3.85 alloy exhibits high yield strength of 1794 MPa and large plastic deformation of 9.6% [15]; the ductility of the (Ti 0.705 Fe 0.295 ) 93.15 Sn 3.85 Nb 3 alloy can be further improved [19]. The microstructures of the eutectic Ti-Fe-based alloys are composed of β-Ti and TiFe phase [15][16][17][18][19]. Although the content of TiFe phase for the eutectic Ti-Fe-based alloys is lower than that of TiFe phase for the hypereutectic Ti-Fe-based alloys, the content of TiFe phase for the former is still high, which affects the strength and ductility of the Ti-Fe-based alloy. Ternary Ti-Fe-Cu, Ti-Fe-Ta, and Ti-Fe-Co and quaternary Ti-Fe-Sn-Nb hypoeutectic alloys have been reported to further reduce the content of TiFe phase [13,[20][21][22][23]. The Ti 94 Fe 3 Cu 3 alloy exhibits the high tensile strength (1200 MPa) and large percentage elongation of 9%, which is attributed to the formation of micro/nano-structured αand β-Ti phases by the dual-axial forging method [20]. The Ti 80 Fe 14 Sn 3 Nb 3 alloy exhibits the high yield strength of 1.88 GPa, ultimate compressive stress of 2400 MPa, plastic strain of 32.4%; the good mechanical properties are attributed to supersaturated β-Ti phase and the high density of lattice defects that restrict the dislocation motion [12].The microstructures of hypoeutectic Ti-Fe-based alloys are generally composed of β-Ti and α-Ti phases; the strength of the alloys is low and the ductility is high when the alloys are mainly composed of β-Ti phases. When the alloy is eutectic, the alloy is composed of a large number of β-Ti and TiFe phases. The plasticity of the alloy is low because of the high content of brittle TiFe phases. While the alloy is hypereutectic, the alloy is composed of a small number of β-Ti phases and a large number of TiFe phases, and the plasticity of the alloy is low. We have previously reported that Ti 80 Fe 20 i...

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Microstructural and Mechanical Properties of β-Type Ti–Nb–Sn Biomedical Alloys with Low Elastic Modulus

Cited by 35 publications

References 46 publications

Review of the Design of Titanium Alloys with Low Elastic Modulus as Implant Materials

Review of the Design of Titanium Alloys with Low Elastic Modulus as Implant Materials

Effect of Heat Treatment Temperature on Martensitic Transformation and Superelasticity of the Ti49Ni51 Shape Memory Alloy

Microstructure and Mechanical Properties of Rapidly Solidified β-Type Ti–Fe–Sn–Mo Alloys with High Specific Strength and Low Elastic Modulus

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