Microstructure evolution and superelastic behavior in Ti-35Nb-2Ta-3Zr alloy processed by friction stir processing

Wang, Liqiang; Xie, Lechun; Lv, Ying; Zhang, Lai-Chang; Chen, Liang Yu; Meng, Qingguo; Qu, Jiao; Zhang, Di; Lü, Weijie

doi:10.1016/j.actamat.2017.03.079

Cited by 171 publications

(67 citation statements)

References 65 publications

(110 reference statements)

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“…Titanium alloys have many advantages, including lower Young's moduli, greater corrosion resistance, higher strength, and lighter weight compared with 316LSS and Co–Cr alloys . Their applications range from aerospace crafts to medical implants.…”

Section: Introductionmentioning

confidence: 99%

Additive Manufacturing of Titanium Alloys by Electron Beam Melting: A Review

et al. 2017

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Electron beam melting (EBM), as one of metal additive manufacturing technologies, is considered to be an innovative industrial production technology. Based on the layer-wise manufacturing technique, as-produced parts can be fabricated on a powder bed using the 3D computational design method. Because the melting process takes place in a vacuum environment, EBM technology can produce parts with higher densities compared to selective laser melting (SLM), particularly when titanium alloy is used. The ability to produce higher quality parts using EBM technology is making EBM more competitive. After briefly introducing the EBM process and the processing factors involved, this paper reviews recent progress in the processing, microstructure, and properties of titanium alloys and their composites manufactured by EBM. The paper describes significant positive progress in EBM of all types of titanium in terms of solid bulk and porous structures including Ti-6Al-4V and Ti-24Nb-4Zr-8Sn, with a focus on manufacturing using EBM and the resultant unique microstructure and service properties (mechanical properties, fatigue behaviors, and corrosion resistance properties) of EBM-produced titanium alloys.

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Section: Introductionmentioning

confidence: 99%

Additive Manufacturing of Titanium Alloys by Electron Beam Melting: A Review

et al. 2017

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“…As such, the ultrafine‐grained materials are expected to be the next generation of biomedical materials. So far, many different severe plastic deformation (SPD) methods have been proposed, including equal channel angular extrusion (ECAP) and accumulative roll bonding (ARB), high‐pressure torsion (HPT), multi‐directional forging, twist extrusion, cyclic‐extrusion–compression, friction stir processing (FSP) …”

Section: New Preparation Methods Of Ti Alloys For Biomedical Applicatmentioning

confidence: 99%

“…Although Ti alloy has high specific strength and high corrosion resistance, their wear resistance is not desirable . Surface modification techniques including physical deposition methods (such as ion implantation, laser cladding, physical vapor deposition, and plasma spray coating), thermochemical surface treatments (such as nitriding, carburization, oxygen diffusion hardening, and boriding), and surface severe plastic deformation (such as friction stir processing and surface mechanical attrition treatment) have been employed to improve the surface properties of Ti alloys. TiN and diamond‐like carbon (DLC) coatings are commonly used in both physical deposition methods and thermochemical surface treatments.…”

Section: Surface Modification Of Ti Alloys For Biomedical Applicationsmentioning

confidence: 99%

“…The thermochemical surface treatments are usually conducted at high temperatures, leading to a twist of the substrate. Therefore, surface severe plastic deformation methods are well developed in recent years . Surface mechanical attrition treatment is a newly emerging method to achieve a nanostructured surface layer on metallic materials by peening with a large number of high‐frequency impacts over a short time .…”

Section: Surface Modification Of Ti Alloys For Biomedical Applicationsmentioning

confidence: 99%

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A Review on Biomedical Titanium Alloys: Recent Progress and Prospect

2019

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Compared with stainless steel and Co-Cr-based alloys, Ti and its alloys are widely used as biomedical implants due to many fascinating properties, such as superior mechanical properties, strong corrosion resistance, and excellent biocompatibility. After briefly introducing several most commonly used biomedical materials, this article reviews the recent development in Ti alloys and their biomedical applications, especially the low-modulus β-type Ti alloys and their design methods. This review also systemically investigates the recently attractive progress in preparation of biomedical Ti alloys, including additive manufacturing, porous powder metallurgy, and severe plastic deformation, applied in the manufacturing and the influenced microstructures and properties. Nevertheless, there are still some problems with the long-term performance of Ti alloys, and therefore several surface modification methods are reviewed to further improve their biological activity, wear resistance, and corrosion resistance. Finally, the biocompatibility of Ti and its alloys is concluded. Summarizing the findings from literature, future prediction is also conducted. Darmstadt. His current research interest is focusing on the metal additive manufacturing (e.g. selective laser melting, electron beam melting), titanium alloys and composites, and processing-microstructure-properties in high-performance materials.

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“…Friction stir welding (FSW), a solid-state joining technique, was originally invented to weld Al alloys [6], and recently applied into Ti alloys due to its advantages over fusion welding [7][8][9][10][11][12][13]. It was reported that the efficiency of FSW Ti alloy joints could be over 90% [14].…”

Section: Introductionmentioning

confidence: 99%

Achieving superior low temperature and high strain rate superplasticity in submerged friction stir welded Ti-6AI-4V alloy

Zhang

Zeng

et al. 2017

Sci. China Mater.

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The superplastic forming of Ti alloy welds has great application prospects in producing integrated components. However, the nugget zone (NZ) of the Ti alloy welds, produced by fusion welding or conventional friction stir welding (FSW), consists of lamellar microstructure, which exhibits either low superplasticity or high superplastic temperautre and low strain rate. As a result, the NZ plays a leading role in hindering the superplastic forming of the whole welds. In this study, submerged friction stir welding (SFSW) was conducted in Ti-6Al-4V alloy for the first time, and a defectfree weld with the NZ consisting of a strip microstructure was obtained. The NZ exhibited a low-temperature superplasticity at 600°C, which was the lowest superplastic temperature ever reported in the Ti alloy welds. Besides, at 800°C, the NZ showed high strain rate (3×10 −2 s −1 ) superplasticity and a largest elongation of 615% at 1×10 −3 s −1 . Compared to conventional FSW joints, the NZ of SFSW joint exhibited a much lower flow stress and a decrease in optimal superplastic temperature by 100°C. This is mainly attributed to the easy globularization of the strip microstructure, enhancing the ability of grain/phase boundary sliding.

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Microstructure evolution and superelastic behavior in Ti-35Nb-2Ta-3Zr alloy processed by friction stir processing

Cited by 171 publications

References 65 publications

Additive Manufacturing of Titanium Alloys by Electron Beam Melting: A Review

Additive Manufacturing of Titanium Alloys by Electron Beam Melting: A Review

A Review on Biomedical Titanium Alloys: Recent Progress and Prospect

Achieving superior low temperature and high strain rate superplasticity in submerged friction stir welded Ti-6AI-4V alloy

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