Control of Anisotropic Crystallographic Texture in Powder Bed Fusion Additive Manufacturing of Metals and Ceramics—A Review

Hagihara, Koji; Nakano, Takayoshi

doi:10.1007/s11837-021-04966-7

Cited by 43 publications

(32 citation statements)

References 95 publications

(96 reference statements)

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“…Such a melt pool is realized by scanning the heat source at a low speed. Figure 7(a)(e) shows the IPF map of the Ti15Mo5Zr3Al alloy, demonstrating the changes in its texture when the scanning speed is varied at a fixed energy density; 15,43) the scanning speed increases from panels a to e. It is clear from the IPF map, pole figure (Fig. 7(a)(e)), and A d v a n c e V i e w degree of crystal orientation in each direction (Fig.…”

Section: Polycrystalline Structure Formationmentioning

confidence: 94%

Review — Microstructural Control and Functional Enhancement of Light Metal Materials via Metal Additive Manufacturing

Ishimoto

Nakano

2023

Mater. Trans.

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Additive manufacturing (AM) has been attracting a great deal of attention in both academia and industry in recent years as a technology that could bring innovation to manufacturing. AM was originally developed as a method specialized in fabricating three-dimensional structures by the additive manner. However, in reality, a huge number of parameters involved in AM has a significant effect on the microstructure and the resulting physicochemical properties of the metallic material. Therefore, in very recent years, metal AM is being recognized as a technology for controlling the microstructure of metals rather than its shape. In addition, AM can even customize the microstructure of each site by applying locally controlled heat energy. The ability to simultaneously control complex shapes and microstructures will add even higher value to lightweight metal materials. This paper describes the potential of metal AM to control material and shape properties that dictates the essential mechanical properties of the product with introducing latest results.

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Section: Polycrystalline Structure Formationmentioning

confidence: 94%

Review — Microstructural Control and Functional Enhancement of Light Metal Materials via Metal Additive Manufacturing

Ishimoto

Nakano

2023

Mater. Trans.

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“…However, the induction of a crystalline orientation strong enough to obtain a relevant crystallographic texture depends on some specific phenomena. These phenomena may or may not be combined in such a way as to generate texture throughout the entire volume of the material or at certain positions [3][4][5], as shown in Figure 1a for a highperformance turbine blade and in Figure 1b for a bone plate implant [6].…”

Section: Introductionmentioning

confidence: 99%

Crystallographic texture configured by laser powder bed fusion additive manufacturing process: a review and its potential application to adjust mechanical properties of metallic products

Morais¹,

Landgraf²

2023

Tecnol. Metal. Mater. Min.

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The performance of engineering materials depends on the conciliation between their structure defined by the fabrication process and the properties required for their application. Within this context, the new developments in the additive manufacturing (AM) process offer great potential to generate new applications and to induce technological innovations with engineering materials. One of these innovations is the possibility of using the crystallographic texture to control proprieties that normally would not be adjustable by other mechanisms, but which are needed in certain specific applications, such as low stiffness for metallic implant parts. In this way, this article presents a structured review to describe trends in production parameters of AM by LPBF process suitable to obtain and control crystallographic texture aiming to improve the property-performance relationship of metallic materials. The increasing evolution of AM by LPBF technology is generating opportunities to increase control over texture and thus over texture-dependent properties of metallic materials products. Despite the potential of tailoring material properties by texture control, the practical use of this technique in AM by LPBF processes is still incipient.

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“…Additive manufacturing (AM) has garnered substantial attention owing to its capability to fabricate parts with complex shapes as well as control internal microstructures through variations in process parameters [ 1 ]. With regard to metal AM, powder bed fusion (PBF), wherein the metal powder is repeatedly melted and solidified using either laser or electron beam irradiation, has become mainstream.…”

Section: Introductionmentioning

confidence: 99%

Effect of Rapid Heating and Cooling Conditions on Microstructure Formation in Powder Bed Fusion of Al-Si Hypoeutectic Alloy: A Phase-Field Study

2022

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Al alloy parts fabricated by powder bed fusion (PBF) have attracted much attention because of the degrees of freedom in both shapes and mechanical properties. We previously reported that the Si regions in Al-Si alloy that remain after the rapid remelting process in PBF act as intrinsic heterogeneous nucleation sites during the subsequent resolidification. This suggests that the Si particles are crucial for a novel grain refinement strategy. To provide guidelines for grain refinement, the effects of solidification, remelting, and resolidification conditions on microstructures were investigated by multiphase-field simulation. We revealed that the resolidification microstructure is determined by the size and number of Si regions in the initial solidification microstructures and by the threshold size for the nucleation site, depending on the remelting and resolidification conditions. Furthermore, the most refined microstructure with the average grain size of 4.8 µm is predicted to be formed under conditions with a large temperature gradient of Gsol = 106 K/m in the initial solidification, a high heating rate of HR = 105 K/s in the remelting process, and a fast solidification rate of Rresol = 10−1 m/s in the resolidification process. Each of these conditions is necessary to be considered to control the microstructures of Al-Si alloys fabricated via PBF.

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Control of Anisotropic Crystallographic Texture in Powder Bed Fusion Additive Manufacturing of Metals and Ceramics—A Review

Cited by 43 publications

References 95 publications

Review — Microstructural Control and Functional Enhancement of Light Metal Materials via Metal Additive Manufacturing

Review — Microstructural Control and Functional Enhancement of Light Metal Materials via Metal Additive Manufacturing

Crystallographic texture configured by laser powder bed fusion additive manufacturing process: a review and its potential application to adjust mechanical properties of metallic products

Effect of Rapid Heating and Cooling Conditions on Microstructure Formation in Powder Bed Fusion of Al-Si Hypoeutectic Alloy: A Phase-Field Study

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