Discontinuous core-shell structured Ti-25Nb-3Mo-3Zr-2Sn alloy with high strength and good plasticity

Zhang, Y. S.; Hu, Jiangjiang; Zhang, W.; Yu, Sen; Yu, Zhentao; Zhao, Yongqing; Zhang, Lai-Chang

doi:10.1016/j.matchar.2018.10.021

Cited by 15 publications

(6 citation statements)

References 25 publications

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“…After solution treatment, ST2 exhibited a higher tensile strength and a higher strain compared with ST2′, suggesting that the evolution of the interface microstructure in the composite contributed to the improvement of both the ductility and the strength. FSP and heat treatment were applied to fabricate this AMC in this investigation, the processing temperature of the composite was low due to the solid-state processing technique for FSP [ 32 , 34 , 35 , 36 ], and the solution treatment was performed at 525 °C. Based on the microstructure of the as-FSPed AMCs, a core–shell microstructure was achieved for the HEA/Al interface in the composite via heating treatment, and a long solution time can lead to a wide transition zone at the edge of the HEA particles.…”

Section: Discussionmentioning

confidence: 99%

Effects of Heat Treatment on the Interface Microstructure and Mechanical Properties of Friction-Stir-Processed AlCoCrFeNi/A356 Composites

Wang

et al. 2023

Materials

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Equiatomic AlCoCrFeNi high-entropy alloy (HEA) has gained significant interest in recent years because of its excellent mechanical properties. A356 aluminum alloy reinforced by AlCoCrFeNi HEA particles was fabricated by friction stir processing (FSP) and subsequent heat treatment. Solution and aging treatments were specially performed for the composites to control the interface microstructure, and interfacial microstructure and tensile properties were explored at different conditions. The interface between the matrix and HEA particles showed a dual-layered core–shell structure and the thickness of the shell region increased with the solution time. The microstructure located in the shell layers consisted of a solid solution with increasing aluminum content, in which a radial-shaped solid solution phase formed in the region close to the core of the HEA particle and scattered solid solution grains with high Ni content formed in the region close to the matrix alloy. The gradient of composition and microstructure across the HEA/Al interface can be obtained through heat treatment, and an optimal interface bonding state and mechanical property were obtained after solution treatment for 2 h. Compared with FSPed A356 aluminum alloy, the FSPed composite enhanced the tensile stress by 60 MPa and the stain by 5% under the optimized conditions. The overgrowth of the shell layer decreased both the tensile strength and the ductile greatly due to the formation of a radial-shaped solid solution phase in the shell region.

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Section: Discussionmentioning

confidence: 99%

Effects of Heat Treatment on the Interface Microstructure and Mechanical Properties of Friction-Stir-Processed AlCoCrFeNi/A356 Composites

Wang

et al. 2023

Materials

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“…In comparison to (α + β)-titanium alloys, β-titanium alloys have lower percentage of α-stabilizers (like O, C, N, Al) and larger percentage of β-stabilizer (like Mo, Ta, and Zr), with no intermetallic phases forming [40]. Because there is no micro-galvanic activity between the different phases, β-type titanium alloys are projected to have superior corrosion resistance in human tissue than (α + β)-titanium alloys and are also comparably stronger and more biocompatible [41].…”

Section: β-Titanium Alloysmentioning

confidence: 99%

A review—metastable β titanium alloy for biomedical applications

Pesode

2023

J. Eng. Appl. Sci.

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Titanium and its alloys have already been widely used as implant materials due to their outstanding mechanical characteristics and biocompatibility. Notwithstanding this, researchers and businesses alike have continued to actively pursue superior alloys since there are still problems which need urgent consideration. One of these is a noteworthy difference in the implant material’s elastics modulus and that of natural bone, which result into an issue of stress shielding. With prolonged use Ti alloys releases dangerous ions. The Ti alloy surface has a low bioactivity, which prolongs the healing process. β-Ti alloys could be used as viable alternatives when creating dental implants. Additionally, β-Ti alloys characteristics, such as low Young modulus, increased strength, appropriate biocompatibility, and strong abrasion and corrosion resistance, serve as the necessary evidence. Ti alloys when altered structurally, chemically, and by thermomechanical treatment thereby enabling the creation of material which can match the requirements of a various clinical practise scenarios. Additional research is needed which can focused on identifying next century Ti alloys consisting of some more compatible phase and transforming the Ti alloys surface from intrinsically bioinert to bioactive to prevent different issues. In order to give scientific support for adopting β-Ti-based alloys as an alternative to cpTi, this paper evaluates the information currently available on the chemical, mechanical, biological, and electrochemical properties of key β-titanium alloys designed from the past few years. This article is also focusing on β-titanium alloy, its properties and performance over other type of titanium alloy such as α titanium alloys. However, in-vivo research is needed to evaluate novel β titanium alloys to support their use as cpTi alternatives.

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“…The second goal is to create alloys with characteristics that are as near to bone as possible ( Kunčická et al, 2017 ). The β-type titanium alloys containing more β-phase stabilizers (Mo, Zr and Ta) possess lower modulus of elasticity and higher toughness than Ti-6Al-4V bulk ( Zhang Y. S. et al, 2019 ). The corrosion resistance of β-type titanium alloys in the human body is also higher than that of (α + β) titanium alloys such as Ti-6Al-4V ( Carman et al, 2011 ).…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…However, the mechanical properties of the composite can be correspondingly improved with magnesium completely filling the internal pores, while it is still far less than that of bulk titanium and titanium alloys. According to recent study, titanium-magnesium composites with specific spatially aligned structures can promote effective stress transfer, delocalize damage and arrest cracking, thereby bestowing improved strength and ductility ( Zhang et al, 2022 ). In addition, extensive studies revealed that the mechanical properties of the titanium-magnesium composite are sufficient to meet the performance requirements of human implants.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Progress in partially degradable titanium-magnesium composites used as biomedical implants

Wang

Bao

et al. 2022

Front. Bioeng. Biotechnol.

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Titanium-magnesium composites have gained increasing attention as a partially degradable biomaterial recently. The titanium-magnesium composite combines the bioactivity of magnesium and the good mechanical properties of titanium. Here, we discuss the limitations of conventional mechanically alloyed titanium-magnesium alloys for bioimplants, in addition we summarize three suitable methods for the preparation of titanium-magnesium composites for bioimplants by melt: infiltration casting, powder metallurgy and hot rotary swaging, with a description of the advantages and disadvantages of all three methods. The titanium-magnesium composites were comprehensively evaluated in terms of mechanical properties and degradation behavior. The feasibility of titanium-magnesium composites as bio-implants was reviewed. In addition, the possible future development of titanium-magnesium composites was discussed. Thus, this review aims to build a conceptual and practical toolkit for the design of titanium-magnesium composites capable of local biodegradation.

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Discontinuous core-shell structured Ti-25Nb-3Mo-3Zr-2Sn alloy with high strength and good plasticity

Cited by 15 publications

References 25 publications

Effects of Heat Treatment on the Interface Microstructure and Mechanical Properties of Friction-Stir-Processed AlCoCrFeNi/A356 Composites

Effects of Heat Treatment on the Interface Microstructure and Mechanical Properties of Friction-Stir-Processed AlCoCrFeNi/A356 Composites

A review—metastable β titanium alloy for biomedical applications

Progress in partially degradable titanium-magnesium composites used as biomedical implants

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