The rapidly solidified β-type Ti–Fe–Sn alloys with high specific strength and low elastic modulus

Li, Peiyou; Zhang, Hui; Tong, Ting; Zhang, He

doi:10.1016/j.jallcom.2019.01.346

Cited by 22 publications

(30 citation statements)

References 26 publications

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“…In Figure 1b, the strongest diffraction peak of the Ti75Fe19Sn5Mo1 alloy is the α-Ti phase, while the intensity of the β-Ti phase is lower than that of the α-Ti phase, which indicates that the matrix phase of the alloy is α-Ti phase, and the second phases are the β-Ti and TiFe phases. In fact, this result is consistent with the type of matrix phase and the second phase of Ti75Fe20Sn5 alloy [11], which suggests that the addition of minor Mo does not change the type of phase. For the Ti75Fe17Sn5Mo3 alloy, the strongest diffraction peak is β-Ti phase, while the diffractive strength of α-Ti phase is smaller than that of α-Ti phase for the Ti75Fe19Sn5Mo1 alloy, indicating that the matrix phase of the Ti75Fe17Sn5Mo3 alloy is the β-Ti phase and the second phase is the α-Ti and TiFe phases.…”

Section: Microstructure Of Ti-fe-sn-mo Alloyssupporting

confidence: 82%

“…Thus, the matrix phase of the Ti75Fe19Sn5Mo1 and Ti75Fe15Sn5Mo5 alloys is the α-Ti phase, the second phases are the β-Ti and TiFe phases, while the matrix phase of Ti75Fe17Sn5Mo5 alloy is the β-Ti phase, and the second phases are the α-Ti and TiFe phases. In fact, in the XRD patterns, the approximate volume fraction of the corresponding phase can be calculated based on the relative diffraction intensity of the phase [2,11]. When the strong diffraction intensity of phase is normalized to 100%, and the strong diffraction intensities of the other phases are normalized, the normalized value can approximately represent the relative volume fraction (Vri) of In fact, in the XRD patterns, the approximate volume fraction of the corresponding phase can be calculated based on the relative diffraction intensity of the phase [2,11].…”

Section: Microstructure Of Ti-fe-sn-mo Alloysmentioning

confidence: 99%

“…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]. In early studies, Ti-Fe based alloys were generally selected in hypereutectic regions, such as the binary Ti 65 Fe 35 hypereutectic alloy, which has high fracture strength and yield strength, and the plastic deformation can reach 6.7%; the microstructures of Ti 65 Fe 35 alloy are composed of β-Ti and a large number of TiFe phases [16].…”

Section: Introductionmentioning

confidence: 99%

“…A small amount of Sn element is used to replace part of Ti element to improve the precipitation of TiFe phase. Among the reported rapidly solidified Ti 79 Fe 20 Sn 1 , Ti 77 Fe 20 Sn 3 , and Ti 75 Fe 20 Sn 5 alloys, the Ti 75 Fe 20 Sn 5 alloy has the lowest elastic modulus, the highest yield strength, and plastic deformation [11]. In fact, rapid solidification is a faster cooling method than natural cooling rate.…”

mentioning

confidence: 99%

“…The alloy that was prepared by rapid solidification had the small particle size. According to Hall-petch expression, when the alloy has smaller particle size, the strength of the alloy is larger [11,12,14]. It is necessary to reduce the content of brittle TiFe phase and prepare alloys by rapid solidification to further improve the strength and plasticity of Ti 75 Fe 20 Sn 5 alloy.…”

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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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Section: Microstructure Of Ti-fe-sn-mo Alloyssupporting

confidence: 82%

Section: Microstructure Of Ti-fe-sn-mo Alloysmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

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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Experimental and Computational Thermal Analysis of Ti-Based Alloy Produced by Laser Metal Deposition Technique

Rudolf Kanyane,

Malatji,

Patricia Popoola

et al. 2024

JOM

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A Ti-Fe-Si-Cr-Nb alloy was fabricated using laser metal deposition (LMD) technique. The laser power and scanning speed were varied during fabrication to optimize the processing parameters. The thermal behavior during LMD processing was modeled and simulated by means of COMSOL Multiphysics 6.0 software. The samples produced were characterized using an optical microscope, X-ray diffractometer, and scanning electron microscope coupled with energy dispersive spectroscopy. The microhardness and wear behavior of the alloy were tested using a diamond indenter and ball-on-disk wear machine. The results obtained showed that the alloys exhibited similar dendritic microstructure for all processing parameters. The formation of cracks and pores were evident mainly in samples that were produced at high scanning speed and low laser power. A decrease in microhardness was noticed when the laser power was increased, while an increase in scanning speed yielded samples with high microhardness values. The alloy showed good tribological behavior, but no clear relationship between the wear resistance of the alloy and the variation of the laser processing parameters could be established.

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Effect of Mechanical Alloying and Sintering Environment on the Crystallographic Evolution, Microstructure, Mechanical and Corrosion Properties of Porous Ti4Al4Co Alloy

et al. 2021

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The rapidly solidified β-type Ti–Fe–Sn alloys with high specific strength and low elastic modulus

Cited by 22 publications

References 26 publications

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

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

Experimental and Computational Thermal Analysis of Ti-Based Alloy Produced by Laser Metal Deposition Technique

Effect of Mechanical Alloying and Sintering Environment on the Crystallographic Evolution, Microstructure, Mechanical and Corrosion Properties of Porous Ti4Al4Co Alloy

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