Article
Materials Science, Multidisciplinary
Yupeng Ren, Naeem ul Haq Tariq, Hanhui Liu, Xinyu Cui, Yanfang Shen, Jiqiang Wang, Tianying Xiong
Summary: By subjecting cold sprayed Al deposits to unidirectional impact forging in the temperature range of 250-300°C, the microstructure and mechanical properties of the deposits can be significantly modified and improved. Hot-forging reduces porosity and enhances inter-particle diffusion, dynamic recovery, and recrystallization mechanisms, resulting in enhanced ultimate tensile strength and elongation in the Al deposits.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Dong Wu, Wenya Li, Kun Liu, Yang Yang, Sijie Hao
Summary: The study found that both annealing and solution aging can improve the mechanical properties of CSAMed AA2024/Al2O3 composite, with solution aging slightly better than annealing. After heat treatment, the fracture mechanism between adjacent particles changed, but the interfacial bonding between AA2024 and Al2O3 particles could not be improved.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Coatings & Films
Hongjian Wu, Shaowu Liu, Wenbo Li, Marcel Lewke, Rija-Nirina Raoelison, Alexander List, Frank Gaertner, Hanlin Liao, Thomas Klassen, Sihao Deng
Summary: Applications in thermal and kinetic spraying for coating of complex parts are increasing. Current individual adjustment of robot programming for deposition paths is time-consuming. This work addresses novel strategies for robot programming and post-spray analyses, allowing for fast adaptation and quality control. The proposed method was tested on a complex workpiece and proved to enable fast generation of paths and accurate transfer to spray procedures.
SURFACE & COATINGS TECHNOLOGY
(2023)
Review
Materials Science, Coatings & Films
A. List, C. Huang, L. Wiehler, C. -p. Gieseler, M. Schulze, F. Gaertner, T. Klassen
Summary: Cold gas spraying is a promising method for additive manufacturing due to its high deposition rate. In order to meet the requirements for structural applications, it is important to understand the mechanical properties and failure tolerances of the deposited materials. Two types of tests, micro-flat tensile (MFT) and tubular coating tensile (TCT) tests, have been widely used to determine deposit strengths. By combining the information from both tests, it is possible to obtain additional information about tolerances against local stress concentrations. This can help in tuning deposit toughness and making quality forecasts.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2023)
Article
Chemistry, Physical
Xinliang Xie, Chaoyue Chen, Zhe Chen, Ahmed Addad, Yingchun Xie, Hongjian Wu, Christophe Verdy, Yan Wang, Jiang Wang, Zhongming Ren, Gang Ji, Hanlin Liao
Summary: Cold spray technology can be used to fabricate metal matrix composites or repair damaged components, but poorly bonded interfaces and pores can affect mechanical performance. This study used a special designed composite powder to produce TiB2/AlSi10Mg composites, and post-annealing treatment was shown to improve mechanical properties.
SURFACES AND INTERFACES
(2021)
Review
Materials Science, Multidisciplinary
Xinliang Xie, Shuo Yin, Rija-nirina Raoelison, Chaoyue Chen, Christophe Verdy, Wenya Li, Gang Ji, Zhongming Ren, Hanlin Liao
Summary: Cold spraying is an emerging solid-state powder deposition process that shows great potential for the production and restoration of metallic components, especially in the aerospace, automotive, and electronics industries. Research focuses on composite powder preparation, microstructure evolution, and post-treatment methods for advanced AMCs.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Wojciech Zorawski, Rafal Molak, Janusz Madry, Jaroslaw Sienicki, Anna Goral, Medard Makrenek, Mieczyslaw Scendo, Romuald Dobosz
Summary: In this study, the cold spray process was used to deposit thick titanium coatings onto 7075 aluminium alloy, and it was found that the standoff distance significantly affected the microstructure and adhesion of the coatings. Increasing the standoff distance can improve deposition efficiency and also impact the porosity and hardness of the coatings.
Article
Engineering, Mechanical
Roberto Brighenti, Farzad Tatar
Summary: Metamaterials are a new class of materials that derive their physical properties from their structure and arrangement rather than their composition and chemical structure. This paper analyzes the thermal and mechanical response of 2D porous metamaterials and presents an analytical model based on geometric tortuosity for predicting thermal response.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Engineering, Manufacturing
Davoud M. Jafarlou, Bryer C. Sousa, Matthew A. Gleason, Gehn Ferguson, Aaron T. Nardi, Danielle L. Cote, Ian R. Grosse
Summary: The research introduces the cold spray process as a method for additive manufacturing of tantalum and extensively evaluates the material's mechanical properties. While anisotropy in the mechanical properties was observed, the material exhibited high strength and excellent isotropy. The study reveals that the cold spray process is suitable for producing tantalum components.
ADDITIVE MANUFACTURING
(2021)
Article
Mechanics
Scott E. Julien, Ahmad Nourian-Avval, Wentao Liang, Tricia Schwartz, Ozan C. Ozdemir, Sinan Muftu
Summary: This study investigated the tensile and fracture anisotropy in helium-sprayed bulk Al 6061 cold spray deposits. The results showed no in-plane anisotropy in tensile properties, while the fracture toughness exhibited mild transverse isotropy. The low level of anisotropy was attributed to effective spray parameters and the usage of helium gas, ensuring good interparticle bonding.
ENGINEERING FRACTURE MECHANICS
(2022)
Article
Nanoscience & Nanotechnology
H. Z. Niu, B. G. Yin, H. R. Zhang, M. C. Zang, H. Tan, D. L. Zhang
Summary: A Ti-6Al-3Sn-4Zr-0.9Mo-0.4Si-0.4Y-0.5B titanium alloy matrix composite (TMC) with multiphase polymorphic reinforcements was successfully fabricated using selective electron beam melting (EBM), demonstrating enhanced tensile strength and hardness at room temperature and elevated temperatures up to 700 degrees C. This study presents a new way to manufacture high-performance components with complex shapes using TMCs.
SCRIPTA MATERIALIA
(2021)
Article
Chemistry, Multidisciplinary
H. O. T. Ware, Y. Ding, C. Collins, B. Akar, N. Akbari, H. Wang, C. Duan, G. Ameer, C. Sun
Summary: With recent advancements in materials engineering and additive manufacturing, patient-specific biomedical devices, such as bioresorbable vascular stents/scaffolds, are becoming more feasible. However, clinical requirements on stent manufacturing pose significant challenges. This study presents an innovative approach using a two-phase system to fabricate bioresorbable vascular stents with sub-100 μm features, meeting the mechanical and safety requirements. The method shows potential for broad application in other biomedical devices.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Engineering, Manufacturing
Yabin Yang, Xin Zhou, Quan Li, Can Ayas
Summary: A semi-analytical thermal model was developed to accurately predict the thermally induced residual stresses and distortions in wire arc additive manufacturing. The simulations showed high accuracy of the proposed model and sensitivity of part distortions to boundary conditions.
ADDITIVE MANUFACTURING
(2021)
Article
Mechanics
H. Yazdani Sarvestani, A. H. Akbarzadeh, D. Therriault, M. Levesque
Summary: This paper investigates the design and manufacturing of lightweight meta-structures, proposing a novel re-entrant bi-material unit cell and constructing two 3D unit cells. By adjusting the structural parameters or material combinations, meta-lattices with programmable thermo-mechanical functions are developed. Using a finite element model for optimization design, uncommon performance combinations are achieved in the meta-lattices.
COMPOSITE STRUCTURES
(2021)
Article
Nanoscience & Nanotechnology
Mugong Zhang, Xuewei Fang, Yu Wang, Xiao Jiang, Tianxing Chang, Naiyuan Xi, Ke Huang
Summary: In this study, Ni-rich NiTi wire was used to deposit a wall-shaped NiTi component with a height of 130 mm on a Ti substrate using the cold metal transfer (CMT) based wire arc additive manufacturing (WAAM) process. The as-deposited NiTi alloy specimens exhibited exceptional superelastic properties with a very high recovery rate of over 90% after 25 cycles of testing in both horizontal and vertical directions. The mechanism behind the high superelasticity in the alloy was explored through microstructure, chemical composition, and phase transformation analyses.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)