Understanding the effect of scanning strategies on the microstructure and crystallographic texture of Ti-6Al-4V alloy manufactured by laser powder bed fusion
TLDR
In this paper, experimental and numerical approaches are performed to explore the influence of scanning strategies on the microstructure, crystallographic texture as well as the mechanical behavior of Ti-6Al-4V alloy manufactured by Laser Powder Bed Fusion (LPBF).About:
This article is published in Journal of Materials Processing Technology.The article was published on 2022-01-01 and is currently open access. It has received 27 citations till now. The article focuses on the topics: Microstructure & Alloy.read more
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Deep Transfer Learning of Additive Manufacturing Mechanisms Across Materials in Metal-Based Laser Powder Bed Fusion Process
Vigneashwara Pandiyan,R. Drissi-Daoudi,Sergey Shevchik,Giulio Masinelli,Tri Le-Quang,Roland E. Logé,Kilian Wasmer +6 more
TL;DR: In this article , the authors demonstrate the knowledge learned by the two native deep learning (DL) networks, namely VGG and ResNets, on four LPBF process mechanisms such as balling, Lack of Fusion (LoF) pores, conduction mode, and keyhole pores in stainless steel (316L) can be transferred to bronze (CuSn8).
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Development of a high strength Zr/Sc/Hf-modified Al-Mn-Mg alloy using Laser Powder Bed Fusion: design of a heterogeneous microstructure incorporating synergistic multiple strengthening mechanisms
Qiuge Li,Guichuan Li,Xin Lin,Daiman Zhu,Jinhang Jiang,Shuoqing Shi,Fenggang Liu,Weidong Huang,Kim Vanmeensel +8 more
TL;DR: In this paper , a novel high strength Zr/Sc/Hf-modified Al-Mn-Mg alloy with a good L-PBF processability is investigated, which exhibits a heterogeneous microstructure featuring a bi-modal grain structure with coarse columnar and fine equiaxed grains and heterogeneously distributed nanometer and submicrometer-sized cuboid-shaped primary Al3(Sc,Zr,Hf) particles.
Journal ArticleDOI
Additive Manufacturing of AlSi10Mg and Ti6Al4V Lightweight Alloys via Laser Powder Bed Fusion: A Review of Heat Treatments Effects
E. Ghio,Emanuela Cerri +1 more
TL;DR: In this article , a review of the state of the art in terms of the microstructural morphology and consequent mechanical performance of these materials after different heat treatments is presented, highlighting variations in microstructure and corrosion resistance.
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Controlling the Young’s modulus of a ß-type Ti-Nb alloy via strong texturing by LPBF
TL;DR: In this article , a top-hat laser configuration was used to control the Young's modulus by creating an adapted crystallographic texture parallel to the building direction and highly elongated grains was generated.
References
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On the process of transition of the cubic-body-centered modification into the hexagonal-close-packed modification of zirconium
TL;DR: In this paper, the process of transition of the cubic-body-centred modification into the hexagonal-close-packed modification of zirconium can be described by means of a combination of shearing- and dilatation-processes parallel to definite crystallographic directions.
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Additive manufacturing of Ti6Al4V alloy: A review
Shunyu Liu,Yung C. Shin +1 more
TL;DR: In this paper, the recent progress on Ti6Al4V fabricated by three mostly developed additive manufacturing techniques-directed energy deposition (DED), selective laser melting (SLM) and electron beam melting (EBM)-is thoroughly investigated and compared.
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Phase transformations during cooling in α+β titanium alloys
TL;DR: In this article, a simplified methodology for investigating the effects of cooling rate from elevated temperature on phase transformations observed in α+β titanium alloys is described, which involves adaptation and refinement of a circumferentially insulated and instrumented Jominy end quench bar, time-temperature profiles obtained during cooling at locations along the bar length providing a complete thermal history.
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Additive manufacturing of strong and ductile Ti–6Al–4V by selective laser melting via in situ martensite decomposition
TL;DR: In this paper, a new ultrafine lamellar microstructures comprising ultrafine (∼200-300nm) α-laths and retained β phases were created via promoting in situ decomposition of a near α′ martensitic structure in Ti-6Al-4V additively manufactured by selective laser melting (SLM).
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Effect of the build orientation on the mechanical properties and fracture modes of SLM Ti–6Al–4V
TL;DR: In this paper, the effect of the microstructure on the tensile properties of additive manufacturing (AM) of Ti alloys has been investigated. And the authors found that the mechanical anisotropy of the parts was discussed in relation to the crystallographic texture, phase composition and the predominant fracture mechanisms.