Article
Polymer Science
Ioan Tamasag, Irina Besliu-Bancescu, Traian-Lucian Severin, Constantin Dulucheanu, Delia-Aurora Cerlinca
Summary: This study aims to investigate the influence of printing direction, thickness of deposited material layer, and temperature of previously deposited material layer on the mechanical characteristics and surface finish of additively manufactured parts. The results demonstrate the possibility of a sustainable and cost-effective manufacturing process. Printing direction has negligible impact on hardness, whereas nozzle diameter significantly affects hardness. ANOVA analysis reveals that nozzle diameter is a statistically significant factor for hardness, while printing direction is significant for tensile strength.
Review
Materials Science, Multidisciplinary
Jierui Mu, Tengteng Sun, Chu Lun Alex Leung, J. P. Oliveira, Yi Wu, Haowei Wang, Hongze Wang
Summary: The accelerated growth of additive manufacturing technologies has helped the expansion of the manufacturing industry, leading to cost savings. However, manufacturing defects still limit the potential applications of AM components. Electrochemical techniques have been considered a promising way to improve surface quality and properties, and their application in AM is gaining attention.
PROGRESS IN MATERIALS SCIENCE
(2023)
Review
Materials Science, Multidisciplinary
Henri Vahabi, Fouad Laoutid, Mehrshad Mehrpouya, Mohammad Reza Saeb, Philippe Dubois
Summary: This review paper focuses on recent developments in flame retardant polymer materials, with a particular emphasis on qualitative and quantitative analyses of their flame retardant properties. It also highlights advancements in designing precise structures through innovative technologies and the flame retardancy performances of 3D printing. The strategies driving innovative flame retardant polymer materials and 3D printing technology are approaching a practical juncture in the near future.
MATERIALS SCIENCE & ENGINEERING R-REPORTS
(2021)
Article
Engineering, Manufacturing
Francesco Careri, Stano Imbrogno, Domenico Umbrello, Moataz M. Attallah, Jose Outeiro, Antonio C. Batista
Summary: The study compared the effects of two different post-processing sequences on the surface integrity of components made with Inconel 718 superalloy, and proposed suitable solutions for additive manufacturing post-process operations.
JOURNAL OF MANUFACTURING PROCESSES
(2021)
Article
Nanoscience & Nanotechnology
Qingkai Shen, Jiaxiang Xue, Zehong Zheng, Xiaoyan Yu, Ning Ou
Summary: This study successfully fabricated a dual-phase high-entropy alloy using powder plasma arc additive manufacturing (PPA-AM) and investigated the effects of heat treatment on the microstructure and mechanical properties of the alloy. The study found that thermal cycling resulted in the precipitation of B2 and FCC particles in the alloy, while heat treatment significantly improved the ductility of the alloy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Qingkai Shen, Jiaxiang Xue, Xiaoyan Yu, Zehong Zheng, Ning Ou
Summary: Powder plasma arc additive manufacturing (PPA-AM) is a promising method for preparing high-entropy alloys (HEAs) with the advantages of low cost, high efficiency, and high quality. In this study, CoCrFeNiWx (x = 0, 0.2, 0.5, 0.7, and 1.0) HEAs were successfully prepared via PPA-AM, and the effects of W content on the microstructure and mechanical properties were investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Coatings & Films
Y. Hong, D. D. Dong, S. S. Lin, W. Wang, C. M. Tang, T. C. Kuang, M. J. Dai
Summary: Enhancing the hardness and wear resistance of SLM maraging steel was achieved through plasma nitriding, which resulted in a nitrided layer with N-rich bright white outer layer and Mo-rich diffusion inner layer. The directly nitrided sample without heat treatment demonstrated the best mechanical properties, attributed to the strong Mo segregation and a novel nitriding structure induced by additive manufacturing. This novel nitriding structure benefits strengthening and toughening, and encourages the formation of a self-lubricating film.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Huoping Zhao, Ajin Wang, Ganghui Li, Qiang Hu, Chunsheng Ye, Mingxue Shen, Yelong Xiao, Shaopeng Liu, Dehui Ji
Summary: In this study, the effect of nanozirconia content in the jet solution on the properties of zirconia ceramic green and sintered bodies was investigated. Increasing nanozirconia content improved forming precision, reduced surface roughness, increased density, decreased linear shrinkage, decreased surface roughness after sintering, and increased bending strength.
CERAMICS INTERNATIONAL
(2022)
Review
Engineering, Chemical
Alessandro M. Ralls, Pankaj Kumar, Pradeep L. Menezes
Summary: This review discusses the importance of surface quality in metal-based heat exchangers for performance and long-term energy conservation, as well as process optimization methods, focusing on the impact of surface quality improvement on reducing wear and increasing heat transfer efficiency.
Article
Materials Science, Coatings & Films
Auezhan Amanov, Ruslan Karimbaev
Summary: The study shows that Ultrasonic Nanocrystal Surface Modification (UNSM) can significantly improve the mechanical and tribological properties of silicon carbide (SiC) manufactured by additive manufacturing (AM), including reducing surface roughness, increasing surface hardness, and decreasing coefficient of friction and specific wear rate.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Manoj Singh Bisht, Vidit Gaur, I. V. Singh
Summary: This study investigates the effect of different heat treatment procedures on the tensile, hardness, and fatigue properties of additively manufactured AlSi10Mg. The results show that the as-built samples have the highest yield and tensile strength but limited ductility, while increasing the peak heat treatment temperature improves ductility at the cost of strength. The microhardness decreases with increasing heat treatment temperature. The microstructural transformation induced by heat treatment significantly influences the mechanical properties and fatigue resistance of the SLM AlSi10Mg alloy, mainly due to the disintegration of the Al-Si cellular network and the formation of discrete Si particles at high temperatures.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Engineering, Chemical
Joanna Marczyk, Ksenia Ostrowska, Marek Hebda
Summary: This study presents the optimization results of printing parameters in Binder Jetting technology using irregular aluminum powder. The influence of binder saturation, roller traverse speed, layer thickness, and sintering atmosphere on the quality of aluminum printed parts was investigated. It was found that increasing the saturation level and layer thickness generally resulted in a decrease in density and an increase in shrinkage and porosity of additive manufactured parts.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Fan Zhou, Xiaogang Hu, Yang Zhou, Zhen Xu, Chuan Guo, Gan Li, Zhuoyu Li, Yuhe Huang, Qiang Zhu
Summary: In this study, the effects of different heat treatments on the anisotropic mechanical properties of Inconel 718 (IN718) fabricated by laser powder bed fusion (LPBF) and laser directed energy deposition (LDED) were comparatively investigated. The results showed that both LPBF-IN718 and LDED-IN718 exhibited strong anisotropy in tensile and creep properties, with the transverse direction samples showing higher tensile strength and better creep performance. However, after a specific heat treatment, the anisotropy in mechanical properties of LDED-IN718 was significantly mitigated, while LPBF-IN718 still maintained strong anisotropic properties. The difference in residual stresses between LPBF-IN718 and LDED-IN718 was the main factor causing this disparity.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Chemistry, Physical
Young Il Kim, Dae-Kyeom Kim, Dongju Lee, Taek-Soo Kim, Young Do Kim, Bin Lee
Summary: By changing the surface characteristics of HDH Ti powder from hydrophilic to hydrophobic using silane-based chemicals, the spreadability of the powder can be improved. The study shows that this method can reduce the cost of HDH Ti powder and improve the spreadability of powder particles in additive manufacturing.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Naboneeta Sarkar, Dishary Banerjee, Amit Bandyopadhyay, Susmita Bose
Summary: The study found that surface-modified porous metal and plasma-sprayed HA-coated implants enhanced osteoclast activity, promoting bone repair and regeneration.
JOURNAL OF MATERIALS RESEARCH
(2021)
