Microstructure of selective laser melted AlSi10Mg alloy
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TLDR
In this article, the influence of laser power during selective laser melting (SLM) on the grain morphology and texture component in AlSi10Mg alloy has been investigated, using electron backscattered diffraction (EBSD).About:
This article is published in Materials & Design.The article was published on 2019-04-15 and is currently open access. It has received 239 citations till now. The article focuses on the topics: Equiaxed crystals & Solidus.read more
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About metastable cellular structure in additively manufactured austenitic stainless steels
Decheng Kong,Decheng Kong,Chaofang Dong,Shaolou Wei,Xiaoqing Ni,Liang Zhang,Ruixue Li,Li Wang,Cheng Man,Xiaogang Li +9 more
TL;DR: In this article, the authors review the most recent research momentum regarding the formation mechanisms (elemental segregation, dislocation cell and oxide inclusion), the kinetics of the size and morphology, the growth orientation and the thermodynamic stability of these cellular structures by taking AM austenitic stainless steel as an exemplary material.
Journal ArticleDOI
Corrosion of metallic materials fabricated by selective laser melting
TL;DR: In this paper, a review of the relationship between the unique microstructures and the corresponding corrosion behavior of several metallic alloys fabricated by selective laser melting is presented, including Ti-based, Al-based and Fe-based alloys.
Journal ArticleDOI
Scanning strategy in selective laser melting (SLM): a review
TL;DR: In this article, the scanning strategy plays an important role in the microstructures, mechanical properties, and residual stresses of 3D printed parts and some suggestions on the optimization of scanning strategy for better performance are provided based on the above analysis.
Journal ArticleDOI
Grain Refinement of Alloys in Fusion-Based Additive Manufacturing Processes
Duyao Zhang,Arvind Prasad,Michael Bermingham,C. J. Todaro,Michael J. Benoit,Mitesh N. Patel,Dong Qiu,David H. StJohn,Ma Qian,Mark Alan Easton +9 more
TL;DR: In this article, the authors explain the reason for columnar grain structures in terms of the high thermal gradients typically observed during solidification and the alloy compositions that are typically used which promote epitaxial growth.
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Effect of scanning speed on the microstructure and mechanical behavior of 316L stainless steel fabricated by selective laser melting
Jiangwei Liu,Ya'nan Song,Chaoyue Chen,Xiebin Wang,Hu Li,Chang'an Zhou,Jiang Wang,Kai Guo,Jie Sun +8 more
TL;DR: In this article, the tensile behavior and microhardness of 316L stainless steel fabricated by selective laser melting under different process parameters were investigated, and the results indicate that selective laser welding may act as a physical metallurgy method to modify the microstructure, and thus improve the mechanical performance of metallic materials.
References
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Metal Additive Manufacturing: A Review
TL;DR: The state-of-the-art of additive manufacturing (AM) can be classified into three categories: direct digital manufacturing, free-form fabrication, or 3D printing as discussed by the authors.
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A study of the microstructural evolution during selective laser melting of Ti–6Al–4V
TL;DR: In this article, the development of the microstructure of the Ti-6Al-4V alloy processed by selective laser melting (SLM) was studied by light optical microscopy.
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Fine-structured aluminium products with controllable texture by selective laser melting of pre-alloyed AlSi10Mg powder
TL;DR: In this paper, the high thermal gradients occurring during SLM lead to a very fine microstructure with submicron-sized cells, which can be modified to a weak cube texture along the building and scanning directions when a rotation of 90° of the scanning vectors within or between the layers is applied.
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Selective laser melting of AlSi10Mg alloy: Process optimisation and mechanical properties development
TL;DR: In this paper, the influence of selective laser melting (SLM) process parameters (laser power, scan speed, scan spacing, and island size) on the porosity development in AlSi10Mg alloy builds has been investigated, using statistical design of experimental approach, correlated with the energy density model.
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Single-crystal laser deposition of superalloys: processing-microstructure maps
TL;DR: In this paper, a process called epitaxial laser metal forming (E-LMF) has been developed for single-crystal (SX) repair of cracked or worn parts.