Article
Materials Science, Multidisciplinary
Chun-Yong Liang, Xiao-Jing Jiang, Rui-Long Ji, Bao-E Li, Xian-Rui Zou, Hong-Shui Wang, Jing-Zu Hao, Tai Yang
Summary: This paper investigates the effect of acid etching and anodizing on improving the bioactivity of 3D printed titanium alloy implants, confirming the impact of surface structures on apatite forming ability. The study provides valuable insights for enhancing the bioactivity of medical implants prepared by 3D printing.
Article
Engineering, Manufacturing
Seong Je Park, Jun Hak Lee, Jeongho Yang, Woongbeom Heogh, Dongseok Kang, Si Mo Yeon, Sang Hoon Kim, Sukjoon Hong, Yong Son, Jiyong Park
Summary: A lightweight injection mold consisting of lattice structures was designed and fabricated using additive manufacturing technology. The weight and material cost of the mold were significantly reduced, and successful injection tests were conducted using polyvinyl chloride (PVC) without causing damage to the mold.
JOURNAL OF MANUFACTURING PROCESSES
(2022)
Article
Nanoscience & Nanotechnology
Pavel Cizek, Sitarama R. Kada, Nicholas Armstrong, Ross A. Antoniou, Sonya Slater, Peter A. Lynch
Summary: This study investigates the development of dislocation structures in both the a and beta phase of a Ti-6Al-4V alloy under cyclic tensile straining. The results show that deformation occurs exclusively through dislocation slip and deformation twins are not present. The prevalent deformation modes are prismatic and basal glide.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Green & Sustainable Science & Technology
Changping Li, Xiangyu Liu, Moran Xu, Jielin Chen, Shujian Li, Pengnan Li, Tae Jo Ko
Summary: This paper investigates the formation mechanism of adhered debris on the surface of turned titanium alloy. The adhesion rate of debris is calculated and evaluated using image extraction technology. The effects of cutting parameters and cooling conditions on the debris adhesion rate are also examined. Furthermore, a finite element simulation and a thermal camera are utilized to analyze the chip temperature and trajectory during the turning process. The results reveal that adhered debris mainly comes from the adhesion of the built-up edge, micro-chips formed during cutting, and micro-chips generated by friction between the chip and the machined surface. Additionally, cutting speed is found to be one of the most significant factors affecting debris adhesion, with the adhesion rate decreasing significantly as cutting speed decreases. The study also demonstrates that coolant can effectively reduce debris adhesion, with a more pronounced effect at low feed rates.
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
(2023)
Article
Engineering, Biomedical
Helena Barber, Cambre N. Kelly, Kaitlin Nelson, Ken Gall
Summary: This study found that sheet-based triply periodic minimal surface (TPMS) scaffolds outperformed strut-based structures in terms of mechanical properties, with higher compressive strength and yield strength. All three topologies exhibited orientational dependence in mechanical properties, with the strut-based architecture showing a higher degree of anisotropy.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Lincong Luo, Jiaying Li, Zhiwei Lin, Xiulin Cheng, Jiejie Wang, Yilin Wang, Yang Yang, Shiyu Li, Qinjie Ling, Jianhui Dai, Qinghong Wu, Wenhua Huang
Summary: This study developed a 3D-printed porous cage with anisotropic biomimetic trabecular structure for lumbar interbody fusion. The fabricated cage showed favorable mechanical properties and biological functions, making it a promising strategy for the treatment of degenerative lumbar disc disease.
MATERIALS & DESIGN
(2023)
Article
Nanoscience & Nanotechnology
Haiyang Fan, Chengcheng Wang, Yujia Tian, Kun Zhou, Shoufeng Yang
Summary: This study investigated the feasibility of using L-PBF to fabricate two Ti-6Al-4V-based bimetals, Ti-6Al-4V/γ-TiAl and Ti-6Al-4V/Ti-6242, which may have great potential for the future manufacturing of aerospace components. The bimetal Ti-6Al-4V/γ-TiAl was unsuccessfully built due to the intrinsic cold cracking of γ-TiAl processed by L-PBF. In comparison, the bimetal Ti-6Al-4V/Ti-6242 was successfully manufactured by L-PBF with a solid and defect-free interface.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Engineering, Mechanical
M. Pinz, J. T. Benzing, A. Pilchak, S. Ghosh
Summary: This paper develops an effective crystal plasticity model with porosity evolution for additively manufactured Ti-6Al-4V alloys. The model is calibrated and validated with experimental results, and can provide important insights into the underlying physics of this relatively new class of materials.
INTERNATIONAL JOURNAL OF PLASTICITY
(2022)
Article
Materials Science, Multidisciplinary
Pengyuan Zou, Hua Zhang, Min Lei, Donghai Cheng, Shuo Huang, Fan Yang
Summary: The combination of PEEK-CFRP with Ti-6Al-4V titanium alloy using continuous laser welding process is a promising manufacturing method, resulting in strong joints. However, the quality of joints is significantly affected by welding speed, with the formation of bubbles, cracks, and anchor effects impacting mechanical properties.
Article
Engineering, Mechanical
C. Garcia-Cabezon, M. L. Rodriguez-Mendez, V. Amigo Borras, R. Bayon, C. Salvo-Comino, C. Garcia-Hernandez, F. Martin-Pedrosa
Summary: This study analyzed the effects of PEO coatings on the corrosion and tribocorrosion properties of Ti-6Al-4V powder metallurgy materials. The results confirmed the beneficial impact of PEO treatments, particularly the PEO-Ca/P sample exhibited improved tribological and corrosion properties.
Article
Engineering, Mechanical
Camilla Ronchei, Sabrina Vantadori
Summary: A new analytical approach combining the multiaxial high-cycle fatigue criterion and the Critical Distance Theory has been proposed for assessing the fatigue lifetime of notched components. The accuracy of this approach was evaluated using experimental data on severely notched specimens made of Ti-6Al-4V material, which is of significant interest to industries like biomedicine.
ENGINEERING FAILURE ANALYSIS
(2021)
Article
Chemistry, Physical
Alexander Grenadyorov, Andrey Solovyev, Konstantin Oskomov, Ekaterina Porokhova, Konstantin Brazovskii, Anna Gorokhova, Temur Nasibov, Larisa Litvinova, Igor Khlusov
Summary: This paper focuses on the in vitro study of a five-week biodegradation of a-C:H:SiOx films of different thickness and explores the effects of film thickness on surface morphology, adhesive strength, and ion precipitation. The results show that a-C:H:SiOx films exhibit good adhesion strength and minimal ion precipitation, making them promising for medical applications such as cardiovascular stents and heart pumps.
Article
Materials Science, Multidisciplinary
Jinwoo Kim, Dylan Hall, Haoxue Yan, Yitong Shi, Sudha Joseph, Sarah Fearn, Richard J. Chater, David Dye, C. Cem Tasan
Summary: It was found that roughening the surface of Ti-6Al-4V can significantly reduce hydrogen uptake and enhance its resistance against hydrogen embrittlement.
Article
Materials Science, Multidisciplinary
Shaohua Su, Zijian Hong, Yuhui Huang, Yongwei Liu, Xiaobao Li, Junwen Wu, Yongjun Wu
Summary: This study presents a novel method of fabricating porous Ti-6Al-4V by metal injection molding without a space holder, and investigates its porosity, pore size, and mechanical properties. Flexible changes in material performance can be achieved by adjusting the powder size and sintering temperature.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Haiting Shen, Huilan Ren, Jianguo Ning
Summary: The study found that strengthening structures can improve structural weaknesses inside the basic structure, leading to excellent mechanical properties in specimen SW, while the strengthening structures in specimen SJ have limited effects. The strain rate sensitivity is dominated by the strain rate effect of the Ti-6Al-4V material.
ADVANCED ENGINEERING MATERIALS
(2021)
Article
Materials Science, Biomaterials
Mohammadreza Kasravi, Alireza Yaghoobi, Tahereh Tayebi, Mahsa Hojabri, Abdolkarim Talebi Taheri, Fatemeh Shirzad, Bahram Jambar Nooshin, Radman Mazloomnejad, Armin Ahmadi, Fatemeh A. Tehrani, Ghasem Yazdanpanah, Mohammad Hadi Farjoo, Hassan Niknejad
Summary: As a promising approach in translational medicine, the decellularization of discarded livers to produce bioscaffolds that support recellularization has potential in overcoming the limitations of conventional liver transplantation. In this study, the researchers investigated the use of matrix metalloproteinase (MMP) inhibition to preserve the extracellular matrix (ECM) during liver decellularization. The results demonstrated that the application of an MMP inhibitor significantly improved the preservation of ECM components and mechanical properties of the bioscaffolds, which supported cell viability and function in vitro. The study also confirmed that the MMP inhibition led to the inhibition of MMP2 and MMP9, providing a novel method to enhance ECM preservation during liver decellularization.
BIOMATERIALS ADVANCES
(2024)
Article
Materials Science, Biomaterials
Mohammadsadegh Nadimifar, Weiguang Jin, Clara Coll-Satue, Gizem Bor, Paul Joseph Kempen, Ali Akbar Moosavi-Movahedi, Leticia Hosta-Rigau
Summary: This study presents a metal-phenolic self-assembly approach that can prepare nanoparticles fully made of hemoglobin. The nanoparticles exhibit good oxygen binding and releasing capabilities.
BIOMATERIALS ADVANCES
(2024)
Article
Materials Science, Biomaterials
Jyoti Kumari, Roel Hammink, Jochem Baaij, Frank A. D. T. G. Wagener, Paul H. J. Kouwer
Summary: Fibrosis is the formation of fibrous connective tissue in response to injury, leading to organ dysfunction. A novel hybrid hydrogel combining synthetic polyisocyanide with hyaluronic acid has been developed, showing strong antifibrotic properties.
BIOMATERIALS ADVANCES
(2024)
Letter
Materials Science, Biomaterials
Melissa Machado Rodrigues, Cristian Padilha Fontoura, Charlene Silvestrin Celi Garcia, Sandro Tomaz Martins, Joao Antonio Pegas Henriques, Carlos Alejandro Figueroa, Mariana Roesch Ely, Cesar Aguzzoli
BIOMATERIALS ADVANCES
(2024)
Article
Materials Science, Biomaterials
Jessica Polak, David Sachs, Nino Scherrer, Adrian Suess, Huan Liu, Mitchell Levesque, Sabine Werner, Edoardo Mazza, Gaetana Restivo, Mirko Meboldt, Costanza Giampietro
Summary: Human skin equivalents (HSEs) play a crucial role in tissue engineering. This study introduces a 3D-printed culture insert to apply a static radial constraint on HSEs and examines its effects on tissue characteristics. The results show that the diameter of the culture insert significantly influences tissue contraction, fibroblast and matrix organization, keratinocyte differentiation, epidermal stratification, and basement membrane formation. This study provides important insights for the design of skin tissue engineering.
BIOMATERIALS ADVANCES
(2024)
Review
Materials Science, Biomaterials
Shiliang Chen, Tianming Du, Hanbing Zhang, Jing Qi, Yanping Zhang, Yongliang Mu, Aike Qiao
Summary: This paper reviewed the primary methods for improving the overall properties of biodegradable zinc stents. It discussed the mechanical properties, degradation behavior, and biocompatibility of various improvement strategies. Alloying was found to be the most common, simple, and effective method for improving mechanical properties. Deformation processing and surface modification further improved the mechanical properties and biological activity of zinc alloys. Meanwhile, structural design could endow stents with special properties. Manufacturing zinc alloys with excellent properties and exploring their interaction mechanism with the human body are areas for future research.
BIOMATERIALS ADVANCES
(2024)