Article
Engineering, Biomedical
Yaping Zhang, Yuanding Huang, Frank Feyerabend, Carsten Blawert, Weimin Gan, Emad Maawad, Sihang You, Sarkis Gavras, Nico Scharnagl, Julia Bode, Carla Vogt, Daniela Zander, Regine Willumeit-Roemer, Karl Ulrich Kainer, Norbert Hort
Summary: The presence of intermetallic particles in Mg-Nd alloys has two conflicting effects on corrosion: enhancing micro-galvanic corrosion (negative role) and promoting the formation of a continuous and compact corrosion layer (positive role). As the immersion proceeds, the positive role of intermetallic particles becomes more pronounced, ultimately impacting the corrosion rate of the alloys.
ACTA BIOMATERIALIA
(2021)
Article
Materials Science, Multidisciplinary
May Likha Lwin, Dong-won Shin, Sun Woo Nam, Yohan Go, Young Min Kim, Taek-Soo Kim, Ji-Woon Lee, Soon-Jik Hong
Summary: The effect of single and co-addition of rare earth elements Nd and Dy on the microstructure, mechanical properties and corrosion behavior of AZ31 magnesium alloys was investigated. The results showed that the addition of Nd and Dy significantly improved the corrosion resistance of the magnesium alloys, while having little effect on the mechanical properties.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Multidisciplinary
Jianwei Dai, Qiangsheng Dong, Yujin Nie, Yongqiang Jia, Chenglin Chu, Xiaobo Zhang
Summary: The microstructures, mechanical properties, and corrosion behaviors of Mg-4Gd-xY-1Zn-0.5Ca-1Zr (x = 1, 3, and 5 wt.%) alloys under as-cast condition were investigated. It was found that Y addition significantly improved the yield strength and corrosion resistance of the alloys.
MATERIALS & DESIGN
(2022)
Review
Chemistry, Physical
Jianhui Dong, Tao Lin, Huiping Shao, Hao Wang, Xueting Wang, Ke Song, Qianghua Li
Summary: This paper reviews the degradation mechanism, influencing factors, and corrosion products of magnesium alloys, and discusses the control methods and goals of degradation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Crystallography
Lavinia Dragomir (Nicolescu), Iulian Antoniac, Veronica Manescu (Paltanea), Aurora Antoniac, Marian Miculescu, Octavian Trante, Alexandru Streza, Cosmin Mihai Cotrut, Doriana Agop Forna
Summary: This study focuses on the corrosion behavior of two Mg-Zn-Ag alloys (Mg7Zn1Ag and Mg6Zn3Ag) and the Mg1Ca alloy. The experimental results show that simulated body fluid solution (SBF) exhibits a more corrosive nature, and alloys with a higher percentage of silver (2.5 wt.%) demonstrate better corrosion resistance. We consider that the magnesium alloy Mg6Zn3Ag has valuable biodegradation characteristics that can be considered as raw materials for manufacturing small trauma implants.
Article
Metallurgy & Metallurgical Engineering
Ke Liu, Feng Lou, Jun-jian Fu, Zi-jian Yu, Shu-bo Li, Zhao-hui Wang, Xian Du, Wen-bo Du
Summary: The corrosion behaviors and mechanism of Mg-xZn-0.5Er (x = 0.5, 2.0, 3.0 and 4.0, in wt.%) alloys were investigated. The potential difference between the second phase and matrix was determined by the type and size of the second phases. The dominated nano-scale W-phase on the matrix induced sharp local pitting corrosion, while an increase in the volume fraction of the coarse W-phase or I-phase resulted in preferential corrosion around them, leading to obvious uniform corrosion and an accelerated corrosion rate.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Article
Materials Science, Multidisciplinary
Polina Metalnikov, Guy Ben-Hamu, Kwang Seon Shin
Summary: This study investigated the effect of varying Zn additions on the corrosion resistance of wrought Mg-5Al alloys, identifying three secondary phases that contribute to changes in the corrosion behavior. While short periods of immersion are characterized by pitting corrosion, long periods lead to the formation of a protective layer and filiform corrosion in alloys with higher Zn content. The micro-galvanic effects continue to play a crucial role in deteriorating corrosion resistance in alloys with relatively high Zn content, depending on the behavior of the cathodic particles and their total number on the alloy's surface.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Hansong Xue, Wei Xie, Song Liu, Yang Zhou, Jianbo Peng, Haitao Pan, Dingfei Zhang, Fusheng Pan
Summary: This paper investigates the effect of La addition on the Al-RE phase in Mg-Al-Zn-Ce magnesium alloy. The results show that adding La can change the morphology of the Al11RE3 phase and a transformation mechanism is proposed. La replaces part of Ce in the Al11Ce3 phase, resulting in the formation of Al11RE3 phase. In the Al11RE3 phase, La doping leads to lattice distortion and accelerates the growth rate in a specific direction, forming a tubular structure.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Yuyang Chen, Tao Ying, Yao Yang, Jingya Wang, Xiaoqin Zeng
Summary: This study proposes a new method to improve the corrosion resistance of MgNd alloy by micro-alloying Zr, which accelerates the precipitation process and facilitates the formation of a dense and compact corrosion layer. The corrosion rate decreases significantly from 32.69 mL/cm2/day to 0.072 mL/cm2/day. Zr tends to form nano-scale oxide clusters on the Mg surface, serving as pre-precipitation sites.
Article
Chemistry, Physical
Hang Xu, Yuan Li, Luoyi Wu, Fulin Jiang, Dingfa Fu, Jie Teng, Hui Zhang
Summary: The influence of heat treatments on the corrosion behavior of Mg-Re alloy was investigated. It was found that heat treatment can decrease the corrosion rate of the alloy and form fine corrosion grooves. The improved homogeneity and the introduction of beta' precipitate as a corrosion barrier contribute to the reduced corrosion rate.
Review
Metallurgy & Metallurgical Engineering
Y. Fu, G. G. Wang, A. Hu, Y. Li, K. B. Thacker, J. P. Weiler, H. Hu
Summary: Sludge consisting of heavy element phases and oxides is often generated during the casting operation of aluminum and magnesium alloys. The control of sludge generation in aluminum alloys is relatively easy, but the formation mechanisms and characteristics of sludge in die casting magnesium alloys are still unclear. To ensure high-quality and cost-efficient production of die cast components, it is important to understand and control sludge in die casting magnesium alloys.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Review
Metallurgy & Metallurgical Engineering
Yan Yang, Xiaoming Xiong, Jing Chen, Xiaodong Peng, Daolun Chen, Fusheng Pan
Summary: Research on magnesium alloys remains a significant focus, with a strong emphasis on microstructure control, mechanical properties, corrosion and protection, and functional magnesium materials. Future research will concentrate on synergistic microstructure control, development of functional materials, corrosion protection measures, and advanced processing technology improvements.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Engineering, Biomedical
Diana C. Martinez, Anna Dobkowska, Romy Marek, Hanna Cwieka, Jakub Jaroszewicz, Tomasz P. Plocinski, Crtomir Donik, Heike Helmholz, Berengere Luthringer-Feyerabend, Berit Zeller-Plumhoff, Regine Willumeit-Roemer, Wojciech Swieszkowski
Summary: This study investigated the degradation of an Mg-0.45Zn-0.45Ca (ZX00) screw in vitro and in vivo. The results showed that the ZX00 alloy promoted bone healing and the formation of new bone. Despite the correlation with the production procedure, the ZX00 alloy was still suitable for temporary bone implants.
BIOACTIVE MATERIALS
(2023)
Review
Metallurgy & Metallurgical Engineering
S. V. Satya Prasad, S. B. Prasad, Kartikey Verma, Raghvendra Kumar Mishra, Vikas Kumar, Subhash Singh
Summary: This review paper summarizes the importance of magnesium and its material properties in engineering applications, including the influence of alloying elements on mechanical properties, corrosion behavior, and manufacturing techniques. Additionally, it discusses the recent trends of magnesium alloys, their applications in the biomedical field, and techniques to overcome biocorrosion.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Chemistry, Physical
A. M. Panindre, H. O. Colijn, C. D. Taylor, G. S. Frankel
Summary: The research focused on the design and corrosion resistance of five single-phase Ni-Fe-Cr-Mo-W-X multi principal element alloys, which were heat treated at 800 degrees C to increase hardness and strength through the precipitation of secondary phases. After aging, the MPEA with Al showed the most significant increase in hardness, about 90%. Electron microscopy revealed the presence of multiple phases in the aged MPEAs that differed from those predicted at thermodynamic equilibrium.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Mechanical
Anil Kunwar, Ensieh Yousefi, Xiaojing Zuo, Youqing Sun, David Seveno, Muxing Guo, Nele Moelans
Summary: This study integrates nanoscale molecular dynamics calculation with mesoscale phase field model to investigate the interfacial phenomena associated with Al3Ni2 growth at the Al/Ni interface. The results reveal that the phase areas and morphology are sensitive to interfacial properties.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Materials Science, Multidisciplinary
Yuri Amorim Coutinho, Anil Kunwar, Nele Moelans
Summary: Phase separation is an important mode of transformation in the microstructure development of multicomponent alloys. Researchers employed a phase-field model and the CALPHAD methodology to simulate phase separation in the AlnCrFe2Ni2 alloy, and provided the relationship between the site fraction variables in the CALPHAD sublattice model and the mole fractions in the phase-field equations via neural networks.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Chunlei Zhang, Vishal Yadav, Nele Moelans, Dorte Juul Jensen, Tianbo Yu
Summary: Experimental results show that voids inside additive manufactured materials significantly affect boundary migration during recrystallization. The location of the voids in relation to the inhomogeneous microstructure also plays a role in local boundary migration. These findings are important for optimizing annealing of printed samples and understanding boundary migration in particle containing alloys.
SCRIPTA MATERIALIA
(2022)
Article
Materials Science, Multidisciplinary
Petra Maier, Daniel Ginesta, Benjamin Clausius, Norbert Hort
Summary: This study focuses on DieMag633, a cast Mg-Al-Ba-Ca alloy. Brittle interdendritic phases strongly affect crack initiation and propagation under quasi-static and fatigue loading. The material has low failure resistance under tensile loading. Selected fatigue loading sequences were used to investigate crack propagation. DieMag633 in this study contains significant shrinkage cavities and pores that have irregular distribution. The cracking is mainly influenced by Ba- and Ca-rich phases, rather than the Mg-matrix. Transgranular cracking is observed mainly in the compact Ba-rich phase and the lamellar Ca-rich phase.
Article
Mechanics
Sourav Chatterjee, Daniel Schwen, Nele Moelans
Summary: This paper introduces an efficient and quantitative phase-field model for elastically heterogeneous alloys, ensuring both static and kinematic mechanical compatibilities as well as chemical equilibrium within the interfacial region. The model employs the partial rank-one homogenization (PRH) scheme for computational efficiency and replaces the composition field with a diffusion potential field to ensure interfacial chemical equilibrium. Simulations of various cases demonstrate the model's performance and accuracy, with comparisons to analytical solutions. The results show the effectiveness of the PRH scheme in maintaining accuracy for different geometries and its superiority over other schemes in convergence.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2022)
Article
Nanoscience & Nanotechnology
Shaoyuan Lyu, Guodong Li, Ruixiao Zheng, Wenlong Xiao, Yuanding Huang, Norbert Hort, Minfang Chen, Chaoli Ma
Summary: In this study, an ultrafine-grained Mg-RE alloy was successfully fabricated by simple hot extrusion, and the roles of nano-precipitates and alloying elements in inhibiting the growth of recrystallized grains were investigated. The results suggest that high tension-compression symmetry in Mg alloys can be achieved through grain refinement and texture randomization.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Martin Minar, Nele Moelans
Summary: Two benchmark problems for the quantitative assessment of anisotropic curvature driving force in a phase-field method were developed and introduced in this paper. The performance of three different ways of including interface energy anisotropy in a multi-phase-field model was compared and tested in an additional benchmark problem. The results showed that only one of the three strategies was reliable in strongly anisotropic systems.
PHYSICAL REVIEW MATERIALS
(2022)
Article
Metallurgy & Metallurgical Engineering
Mariano Casas-Luna, Edgar B. Montufar, Norbert Hort, Sebastian Diaz-de-la-Torre, Jose Claudio Mendez-Garcia, Lucie Vistejnova, Adam Brinek, Ales Danhel, Karel Dvorak, Jozef Kaiser, Ladislav Celko
Summary: This study explores the combination of ceramic additive manufacturing and liquid metal infiltration for the production of degradable interpenetrating phase magnesium/hydroxyapatite (Mg/HA) composites. By using material extrusion additive manufacturing and an advanced liquid infiltration method, HA preforms with controlled pore networks were successfully infiltrated with pure Mg and Mg alloys. The pure Mg-based composites exhibited higher compressive yield strength compared to pure Mg, while the Mg alloy-based composites showed similar mechanical properties to other Mg/HA composites. Additionally, the composites demonstrated a faster degradation rate under simulated body conditions.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Materials Science, Multidisciplinary
Sourav Chatterjee, Daniel Schwen, Nele Moelans
Summary: A phase-field model for simulating microstructure evolution in multi-phase and multi-component solids is presented. The model uses a partial rank-one homogenization scheme and is verified to be accurate through numerical simulations.
COMPUTATIONAL MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Vincent Feyen, Nele Moelans
Summary: This paper presents a novel multi-order parameter phase-field model that is capable of simulating high driving force phenomena encountered in electrochemical cells or additive manufacturing processes. The model separates the interfacial stability and mean curvature flow and is validated through four benchmarks and three different multi-order parameter interpolation functions. Additionally, the model reduces the number of grid points needed for classical models, enabling simulations of phase transformations and grain growth with reduced computational time and improved accuracy. Overall, this proposed model advancement bridges the gap between experiments and simulations, allowing for a more comprehensive range of driving forces and length scales in phase-field modeling.
Article
Materials Science, Multidisciplinary
Hong Liu, Fengxiang Lin, Nele Moelans, Liming Peng, Jian-Feng Nie, Irene J. Beyerlein
Summary: In this study, an analytical model is developed to predict the 3D shape and stress field of different-sized ellipsoidal twins in hexagonal close-packed metals. The model considers the effects of anisotropic twin boundary energy, elastic strain energy, and plastic relaxation. It is applied to Mg with a focus on a specific twin type. The results show that the stress field near structural defects facilitates the nucleation of nano-sized twin embryos, and the interplay between elastic strain energy and interfacial energy affects the length and stress distribution of the twin.
Article
Engineering, Mechanical
Xiaojing Zuo, Nele Moelans
Summary: We propose a new approach to model the stress effects in high and medium entropy alloys using a combination of phase-field method, CALPHAD data and DFT calculations. By calculating the composition dependent Gibbs energies and diffusion mobilities of the BCC and FCC phase, and studying the elastic properties using DFT, we investigate the evolution of the BCC/FCC microstructures in AlCrFeNi alloys. It is found that the elastic stresses arising from the difference in eigenstrain between the BCC and FCC phases have a significant impact on precipitate formation.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Materials Science, Multidisciplinary
Ensieh Yousefi, K. Vijay Reddy, Youqing Sun, Miral Verma, Muxing Guo, Nele Moelans, David Seveno
Summary: This study used molecular dynamics simulation to investigate the formation and growth of Al/Ni intermetallic compounds (IMCs) in the Al (l)/Ni (s) wetting system at high temperatures. The reactive wetting process was classified into three stages based on the Al/Ni interphase condition. It was found that IMCs nucleated during the dissolutive phase, while stable IMCs, mainly composed of AlNi and Al3Ni5, were formed during the reactive stage. The growth of IMCs in the radial direction correlated with the contact radius of the droplet, while the growth in the normal direction showed an opposite behavior with significant thickness increase during the quasi-equilibrium regime.
Article
Nuclear Science & Technology
Aleksandr Tsybanev, Kristof Gladinez, Jun Lim, Alessandro Marino, Nele Moelans, Alexander Aerts
Summary: It is crucial to have a comprehensive understanding of the coolant chemistry in liquid lead-bismuth eutectic (LBE) to ensure the reliability of LBE technology. This study has identified the presence of hematite (Fe2O3) as an important oxide in LBE, in addition to the previously confirmed magnetite (Fe3O4). The formation of Fe2O3 through the reaction of Fe3O4 with dissolved oxygen explains the observed oxygen trends. This finding highlights the importance of considering additional oxygen consumption in LBE cooling strategies.
PROGRESS IN NUCLEAR ENERGY
(2023)
Article
Metallurgy & Metallurgical Engineering
Hui Shi, Yuanding Huang, Lixiang Yang, Chunquan Liu, Hajo Dieringa, Chong Lu, Lv Xiao, Regine Willumeit-Roemer, Norbert Hort
Summary: This study investigates the creep behavior and microstructural evolution of sand-cast Mg-14Gd-0.4Zr alloy using compressive creep tests. The results show that the coherent distribution of beta' and beta' (F) phases effectively impedes dislocation movement and enhances creep resistance. However, with increasing creep time, the fine precipitate chains coarsen and transform into different phases, leading to stress concentration and increased creep strain.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
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)
