On study of process induced defects-based fatigue performance of additively manufactured Ti6Al4V alloy

Bhandari, Litton; Gaur, Vidit

doi:10.1016/j.addma.2022.103227

Cited by 11 publications

(3 citation statements)

References 46 publications

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“…Extensive research has been conducted in this field; the processing of Ti6Al4V alloy, the most popular titanium-based alloy, has received extensive attention. [25][26][27][28][29][30][31][32][33] In terms of processability, Nguyen et al [34] reviewed the processability of Ti6Al4V by various AM methods, including electron beam melting (EBM), laser powder bed fusion (L-PBF), and directed energy deposition (DED) methods. L-PBF and DED methods exhibit comparable strength to the conventionally produced counterparts, up to 25% higher.…”

Section: Doi: 101002/adem202301122mentioning

confidence: 99%

Additive Manufacturing of Titanium Alloys: Processability, Properties, and Applications

Mosallanejad,

Abdi,

Karpasand

et al. 2023

Adv Eng Mater

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The restricted number of materials available for additive manufacturing (AM) technologies is a determining impediment to AM growing into sectors and providing supply chain relief. AM, in particular, is regarded as a trustworthy manufacturing technology to replace the traditional ones for Ti alloy components. Furthermore, the AM processability of Ti alloys and their features, such as microstructure, texture, and mechanical properties, is strongly dependent on the chemical composition of the processed alloy. It is essential to consider the ultimate applications as well. β Ti alloys are gaining popularity in the biomedical industry, while α + β Ti alloys are increasingly utilized for producing components in the automotive and aerospace sectors. Consequently, the topic has garnered considerable interest, and the current text reviews the advances during the last 10 years in this area to facilitate the pathway from the demanded Ti alloy to the best‐fit AM procedure. While systematically reviewing the works published in the literature, the current text attempts to establish a link between the production method, feedstock type, chemical composition, and the ultimate application. This review also features practical applications of Ti components produced by metal AM methods and offers prospective possibilities and industrial applications.

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Section: Doi: 101002/adem202301122mentioning

confidence: 99%

Additive Manufacturing of Titanium Alloys: Processability, Properties, and Applications

Mosallanejad,

Abdi,

Karpasand

et al. 2023

Adv Eng Mater

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show abstract

“…[6,7] In addition, the rapid melting of the material and the rapid solidification of the molten pool under the local action of the laser are repeated alternately, so that the formed components show the characteristics of nonequilibrium solidification structure with basically no chemical element segregation and extremely small grains. [8][9][10] Therefore, LPBF has attracted wide attention as a preparation method of metal matrix composites. Over the past few years, B 4 C, [11,12] TiB, [13] and TiC [14] have been selected as reinforcements to improve the performance of titanium alloys.…”

Section: Introductionmentioning

confidence: 99%

Influence of laser energy density on the microstructure and corrosion resistance of LPBF‐fabricated titanium‐based nanocomposites

Shi

Ren

et al. 2023

Materials & Corrosion

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As a high‐efficiency laser additive manufacturing technology, laser powder bed fusion (LPBF) has unparalleled advantages in the manufacture of titanium matrix composites. In this work, the effect of laser energy density (LED) on the forming quality, microstructure evolution, and corrosion resistance of LPBF‐fabricated nanographene oxide reinforced titanium matrix nanocomposites (GO/TC4) was investigated. The results show that the optimal surface roughness and relative density of GO/TC4 nanocomposites fabricated by LPBF are 11.8 μm and 99.40%, respectively. The microstructure is mainly acicular α/α′‐Ti, accompanied by a small amount of β‐phase grain boundaries. When the LED is increased to 58.33 J/mm3, the self‐corrosion potential of GO/TC4 sample reaches 0.345 V in 3.5 wt% NaCl solution, and the GO/TC458.33 nanocomposite exhibits the highest corrosion resistance. The results revealed that the corrosion products on the surface of the samples were mainly composed of a passivation film of TiO2 and a small amount of Al2O3.

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“…Comparison of mechanical properties of Ti6Al4V after manufacturing with particular AM technologies[30,[46][47][48][49][50][51][52][53][54][55][56][57][58].…”

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confidence: 99%

Effects of Shot Peening and Electropolishing Treatment on the Properties of Additively and Conventionally Manufactured Ti6Al4V Alloy: A Review

Okuniewski,

Walczak,

Szala

2024

Materials

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This literature review indicates that the basic microstructure of Ti6Al4V is bimodal, consisting of two phases, namely α + β, and it occurs after fabrication using conventional methods such as casting, plastic forming or machining processes. The fabrication of components via an additive manufacturing process significantly changes the microstructure and properties of Ti6Al4V. Due to the rapid heat exchange during heat treatment, the bimodal microstructure transforms into a lamellar microstructure, which consists of two phases: α′ + β. Despite the application of optimum printing parameters, 3D printed products exhibit typical surface defects and discontinuities, and in turn, surface finishing using shot peening is recommended. A literature review signalizes that shot peening and electropolishing processes positively impact the corrosion behavior, the mechanical properties and the condition of the surface layer of conventionally manufactured titanium alloy. On the other hand, there is a lack of studies combining shot peening and electropolishing in one hybrid process for additively manufactured titanium alloys, which could synthesize the benefits of both processes. Therefore, this review paper clarifies the effects of shot peening and electropolishing treatment on the properties of both additively and conventionally manufactured Ti6Al4V alloys and shows the effect process on the microstructure and properties of Ti6Al4V titanium alloy.

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On study of process induced defects-based fatigue performance of additively manufactured Ti6Al4V alloy

Cited by 11 publications

References 46 publications

Additive Manufacturing of Titanium Alloys: Processability, Properties, and Applications

Additive Manufacturing of Titanium Alloys: Processability, Properties, and Applications

Influence of laser energy density on the microstructure and corrosion resistance of LPBF‐fabricated titanium‐based nanocomposites

Effects of Shot Peening and Electropolishing Treatment on the Properties of Additively and Conventionally Manufactured Ti6Al4V Alloy: A Review

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