Review
Engineering, Civil
Bassiouny Saleh, Reham Fathi, Yinbao Tian, N. Radhika, Jinghua Jiang, Aibin Ma
Summary: This paper provides a comprehensive analysis of the recent advancements in wire arc additive manufacturing (WAAM) technology, focusing on microstructure, mechanical properties, materials used, process-related defects, and post-process treatments. The results highlight the strengths and limitations of WAAM and offer insights into its future prospects. This information is valuable for academics, designers, and manufacturers in the field, serving as a milestone for future WAAM research and application.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Maverick Giovagnoli, Giacomo Silvi, Mattia Merlin, Maria Teresa Di Govanni
Summary: The study found that different combinations of deposition parameters within the VED range did not significantly alter the microstructural features of the AlSi10Mg alloy, but had a severe impact on porosity. Specimens with the same VED but different hatch spacing exhibited significantly different tensile properties. Therefore, relying solely on energy density to predict the final density of additively manufactured components is unreliable.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Chemistry, Physical
Tao He, Shaohe Zhang, Xiangwang Kong, Jingjing Wu, Lei-lei Liu, Dongyu Wu, Zhou Su
Summary: This study investigates the influence of diamond parameters on diamond tools manufactured using FDMS technology. Copper-tin-diamond composite samples with different diamond concentrations and particle sizes were prepared, and the influence on morphological characteristics, mechanical properties, and structure of the samples was explored. The results show that diamond concentration and particle size have a significant impact on the performance of the samples.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Crystallography
Gowtham Venkatraman, Leon M. Headings, Marcelo J. Dapino
Summary: This paper investigates the effect of process variables on the microstructure of aluminum 6061 built-up parts using ultrasonic additive manufacturing (UAM). The researchers quantify the degree of recrystallization and develop an energy metric to analyze the welded part. They find that the total energy stored in the weld interface microstructure is about 0.1% of the input energy. The study also compares microstructures of builds prepared under different processing conditions and explores the impact of vibration amplitude and travel speed on the as-built microstructure.
Article
Automation & Control Systems
Mulla Ahmet Pekok, Rossitza Setchi, Michael Ryan, Quanquan Han, Dongdong Gu
Summary: Selective laser melting (SLM) offers significant benefits compared to traditional manufacturing techniques, but the limited materials available for SLM production restrict the industrial adoption of the technology. This study investigates the effect of laser parameters on the mechanical and microstructural properties of aluminium 2024 alloy manufactured using SLM, revealing insights into crack formation and microhardness variations.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Bo Wang, Fuchen Ge, Hongtao Zhang, Rongmao Du, Yanlong Fan, Junlin Pan
Summary: To solve the problems of intergranular copper infiltration, liquid phase separation, and thermal cracks during fusion welding of copper and 304 stainless steel, UAM technology was used to consolidate a nickel transition layer on the stainless steel surface for surface modification. Copper-304 stainless steel overlap joints were obtained using the pulse TIG process. The study found that the introduction of a nickel interlayer can achieve metallurgical isolation between copper and steel and relieve interfacial stress. A high-quality brazed joint with a nickel interlayer thickness of 0.1 mm was formed between stainless steel and copper, with an ultimate tensile strength of 165 MPa at room temperature. The joint fracture occurred near the fusion line close to the copper side, showing a ductile fracture mode.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Nanoscience & Nanotechnology
Ye Wang, Zhenghao Liu, Yuzhao Zhou, Xiaoshan Yang, Jingang Tang, Xue Liu, Jinfeng Li, Guomin Le
Summary: Addition of different contents of nanoscale TiN particles in the LMD process of 316L steel can significantly refine the grain sizes and improve the strength of the composites. Among them, an addition of 2 wt% TiN helps achieve balanced mechanical properties for the 316L-based composite materials.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Matthew Rolchigo, Robert Carson, James Belak
Summary: Coupled process-microstructure-property modeling and understanding of uncertainty sources are crucial for reliable additive manufacturing (AM) part development. This study investigates several sources of uncertainty in the modeling workflow and finds that mean grain area is sensitive to nucleation density and substrate grain spacing, while grain shapes and overall textures develop similarly. Simulation results show that 15 layers are sufficient for independent predictions of mechanical properties, but additional layers are needed for mean grain area independent of build height.
Review
Automation & Control Systems
Kumaresan Rajan, Mahendran Samykano, Kumaran Kadirgama, Wan Sharuzi Wan Harun, Md Mustafizur Rahman
Summary: In recent years, 3D printing technology has been crucial in fabricating customized products in various industrial sectors at a low cost and faster speed. Among the techniques, fused deposition modeling (FDM) stands out as one of the most efficient and economical methods. Researchers have been expanding the range of materials and optimizing the FDM process parameters to extend its applications.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Manufacturing
Pengfei He, Zhengying Wei, Yongchao Wang, Minbo Jiang, Chen Ma, Xueli Chen, Xuhui Lai
Summary: In this paper, a novel droplet + arc additive manufacturing (DAAM) method was proposed for building high quality and high efficiency aluminum alloy components. A special droplet generation system (DGS) was designed to replace the traditional wire feeding system, allowing the material addition process and the arc heat input process to function independently. The experimental results demonstrated that the DAAM process improved the continuity of the deposition process and significantly reduced the harmful impact of droplets on the molten pool. In addition, the DAAM process showed great inclusiveness of droplet falling deviation and successfully fabricated multi-layer thin-wall components and ring-shaped structures.
ADDITIVE MANUFACTURING
(2023)
Article
Chemistry, Physical
Sung Hwan Hong, Sung Yong Ha, Gian Song, Jaiyoung Cho, Ki Buem Kim, Hae Jin Park, Gyeol Chan Kang, Jin Man Park
Summary: The 18-Ni 300 maraging steels with bulk cuboidal shape were fabricated by selective laser melting (SLM) to investigate the relationship between micro-to-macro mechanical properties and processing parameters. The results showed that the relative density of the as-built specimens was influenced by the laser power, scanning rate, and volume metric energy density (VED). The micro Vickers hardness and yield strength of the specimens were also affected by the relative density and VED.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Manufacturing
Amirpasha Moetazedian, James Allum, Andrew Gleadall, Elisa Mele, Vadim V. Silberschmidt
Summary: This study demonstrated a new treatment method using chemical immersion in acetone to selectively modify mechanical and geometrical properties of PLA and ABS materials, resulting in increased plasticity and shortened recovery time through annealing. The hybrid process, MaTrEx AM, allowed for localized modification of mechanical properties to increase toughness and redirect strain, showing potential for enhancing material functionality.
ADDITIVE MANUFACTURING
(2021)
Article
Nanoscience & Nanotechnology
Shahriar Afkhami, Vahid Javaheri, Edris Dabiri, Heidi Piili, Timo Bjork
Summary: This study investigates the effects of build orientations, heat treatment, and mechanical machining on the microstructure, mechanical properties, and residual stress of additive manufactured CX stainless steel. The results show that heat treatment significantly improves the material's strength and eliminates anisotropy. Building orientation has minimal impact on the material's properties, while retained austenite plays a crucial role in its ductility and strain hardening.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Naiqiang Xu, Junqi Shen, Shengsun Hu, Tianxu Li, Yinbao Tian, Changle Sun
Summary: Layer-by-layer ultrasonic peening treatment (UPT) can refine the microstructure and reduce the pore number in the Al alloy of bimetallic structures, increasing the ultimate tensile strength. The Nb interlayer still acts as a diffusion barrier after UPT, preventing the formation of harmful intermetallic compounds.
Article
Automation & Control Systems
Majid Elyasi, Davood Khoram, Hamed Aghajani Derazkola, Mohamad Javad Mirnia
Summary: This article investigates the impact of friction stir additive manufacturing (FSAM) process parameters on the microstructure and mechanical properties of copper. Variables such as plunge depth, tilt angle, and rotational and traverse velocities of the FSAM tool are analyzed. The study reveals that improper process parameters can lead to incomplete deposition in FSAM of copper. The formation of an ultra-fine grained zone called the re-stirring area is observed in the center of the print. The highest strength printed sample is achieved at specific parameters.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Chemistry, Physical
H. R. Bakhsheshi-Rad, E. Hamzah, A. F. Ismail, M. Daroonparvar, M. A. M. Yajid, M. Medraj
JOURNAL OF ALLOYS AND COMPOUNDS
(2016)
Article
Chemistry, Physical
Tian Wang, Dmytro Kevorkov, Mamoun Medraj
Article
Materials Science, Multidisciplinary
H. R. Bakhsheshi-Rad, E. Hamzah, H. Y. Tok, M. Kasiri-Asgarani, S. Jabbarzare, M. Medraj
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2017)
Article
Materials Science, Multidisciplinary
H. R. Bakhsheshi-Rad, E. Hamzah, S. L. Joy Yii, A. Mostafa, R. Ebrahimi-Kahrizsangi, M. Medraj
MATERIALS SCIENCE AND TECHNOLOGY
(2017)
Article
Metallurgy & Metallurgical Engineering
H. R. Bakhsheshi-Rad, E. Hamzah, H. T. Low, M. H. Cho, M. Kasiri-Asgarani, S. Farahany, A. Mostafa, M. Medraj
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2017)
Correction
Materials Science, Multidisciplinary
Ahmad Mostafa, Ignacio Picazo Rubio, Vladimir Brailovski, Mohammad Jahazi, Mamoun Medraj
Article
Materials Science, Multidisciplinary
Ahmad Mostafa, Ignacio Picazo Rubio, Vladimir Brailovski, Mohammad Jahazi, Mamoun Medraj
Article
Materials Science, Multidisciplinary
H. S. Kirols, D. Kevorkov, A. Uihlein, M. Medraj
MATERIALS RESEARCH EXPRESS
(2017)
Article
Chemistry, Physical
Kayode Orimoloye, Dmytro Kevorkov, Mamoun Medraj
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Chemistry, Physical
Tian Wang, Mamoun Medraj
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Materials Science, Multidisciplinary
Eslam M. Fayed, Mohammad Saadati, Davood Shahriari, Vladimir Brailovski, Mohammad Jahazi, Mamoun Medraj
Summary: The study found that after a 4-hour homogenization treatment, the tensile properties of IN718 exceeded those of wrought IN718, and exhibited a high degree of microstructural isotropy.
Article
Nanoscience & Nanotechnology
Eslam M. Fayed, Vladimir Brailovski, Mohammad Jahazi, Mamoun Medraj
Summary: This study examines the thermal stability of additively manufactured Inconel 718 (IN718) under long-term thermal cycling exposure. The results show that the tensile and yield strengths of the samples initially increase at 650 degrees C before reaching their maximum values, and then gradually decrease with further thermal cycling. Analysis reveals that different heat treatment conditions have different effects on the material properties. Compared to the other condition, the 4H treatment effectively delays the deterioration of material strength.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Metallurgy & Metallurgical Engineering
Eslam M. Fayed, Vladimir Brailovski, Mohammad Jahazi, Mamoun Medraj
Summary: This study investigates the potential of microwave hybrid heating (MHH) technique as an efficient post-heat treatment route for Inconel 718 (IN718) superalloy processed by laser powder bed fusion (LPBF). The LPBF-IN718 alloy is post-heat-treated using an industrial microwave (MW) oven and a conventional heat treatment. The MW treatment decreases the fraction of intergranular delta-phase and leads to more precipitation of MC-type carbides in the matrix compared to the conventional treatment.
CANADIAN METALLURGICAL QUARTERLY
(2023)
Review
Chemistry, Physical
Ahmad Mostafa, Mamoun Medraj