Article
Chemistry, Physical
Nengbin Hua, Wenjie Wang, Qianting Wang, Youxiong Ye, Sihan Lin, Lei Zhang, Qiaohang Guo, Jamieson Brechtl, Peter K. Liaw
Summary: The study on TixZrNbTaMo high entropy alloys revealed excellent properties in hardness, corrosion resistance, and wear resistance, with improvement in wear resistance in phosphate buffer saline solution as the titanium content decreases. The Ti0.5ZrNbTaMo alloy showed the highest corrosive wear resistance among the four HEAs due to its superior mechanical properties and chemical stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Multidisciplinary Sciences
Giovana Collombaro Cardoso, Gerson Santos de Almeida, Dante Oliver Guim Correa, Willian Fernando Zambuzzi, Marilia Afonso Rabelo Buzalaf, Diego Rafael Nespeque Correa, Carlos Roberto Grandini
Summary: Ti and its alloys are widely used metallic biomaterials due to their excellent properties. However, current alloys have limitations, and new beta-type alloys with non-cytotoxic elements are being developed. This study evaluated Ti-5Mo-xNb alloys and found that increasing Nb concentration led to the growth of the beta-Ti phase, while microhardness decreased except for Ti-5Mo-10Nb alloy. In vitro tests showed no cytotoxicity.
SCIENTIFIC REPORTS
(2022)
Article
Materials Science, Multidisciplinary
Jian Wu, Xinghua Zhu, Heguo Zhu
Summary: In-situ (Nb,Ti)C particles reinforced Ni0.6CoFe1.4Nb0.05 medium-entropy alloy composites were successfully fabricated by vacuum induction melting technology. The synthesis mechanism of (Nb,Ti)C and its effect on the microstructure evolution, mechanical properties, and wear behaviors were analyzed. The volume fraction of (Nb,Ti)C significantly improved the micro-hardness and tensile strength of the composites, while the friction coefficient and wear rate showed a decreasing and then increasing trend with the increase of (Nb,Ti)C content.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2023)
Article
Chemistry, Physical
Ka-Kin Wong, Hsueh-Chuan Hsu, Shih-Ching Wu, Wen-Fu Ho
Summary: Three nonequiatomic Ti-rich Ti-Zr-Nb-Mo medium-entropy alloys were developed for biomedical applications, exhibiting high yield strength, low elastic moduli, and excellent resilience. The distortion effect caused by alloying atomic radius difference contributed to the superior yield strengths of the alloys. Increasing Ti content can prevent segregation issues and reduce the elastic modulus.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Fangxia Xie, Hao Yang, Jiabing Huang, Jinghu Yu, Xueming He
Summary: The effects of Sn content on microstructure, mechanical performance, and tribological behavior of Ti-10Nb-xSn alloys fabricated using powder metallurgy were investigated. The results showed that the addition of Sn increased the density and changed the microstructure of the alloys. It also affected the mechanical properties, with an initial reduction followed by a slight increase in hardness, compressive strength, and maximum strain. The friction coefficient increased with increasing Sn content. Sn had a minor influence on the elastic modulus.
Article
Materials Science, Multidisciplinary
Weijie Weng, Arne Biesiekierski, Jixing Lin, Sertan Ozan, Yuncang Li, Cuie Wen
Summary: This study investigated the newly designed beta-type Ti-Nb-Zr-Mo (TNZM) alloys for orthopedic applications, and found that TNZM1, TNZM2, and TNZM3 exhibited higher elastic admissible strain, high hardness, good ductility, and cytocompatibility.
APPLIED MATERIALS TODAY
(2021)
Article
Materials Science, Multidisciplinary
Xujie Gao, Liang Wang, Nana Guo, Liangshun Luo, Guangming Zhu, Chengcheng Shi, Yanqing Su, Jingjie Guo
Summary: By adding metallic and non-metallic elements to Hf-Mo-Nb-Ti-Zr alloys, multiphase reinforced refractory high entropy alloys can be formed, and the type and content of the newly formed phases are closely related to the mixing enthalpy between alloying elements and the constituent elements of the matrix alloy.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2022)
Review
Chemistry, Physical
Mi Zhao, Wei Ye, Mengyuan Zhu, Yuteng Gui, Wei Guo, Shusen Wu, Youwei Yan
Summary: Mo-Si-B alloys have been extensively studied due to their high melting points, excellent high-temperature strength, and relatively good oxidation resistance. However, their insufficient room-temperature fracture toughness and high-temperature oxidation resistance hinder further application. By macroalloying Ti, a novel phase equilibrium can be established, resulting in improved mechanical properties and oxidation resistance. Understanding the advantages of quaternary alloys over ternary systems may lead to the development of novel ultra-high-temperature structural materials.
Article
Metallurgy & Metallurgical Engineering
Kun Yang, Jian Wang, Guang-yu Yang, Liang Jia
Summary: Adding silicon to classic biomedical titanium alloys can significantly improve the strength and wear resistance of the alloy, making it suitable for load-bearing implant applications.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2022)
Article
Materials Science, Multidisciplinary
Ying Xu, Sitan Zhao, Yanqing Cai
Summary: A low-elastic, high-strength Ti-Mo-Nb-Zr biomedical beta titanium alloy was theoretically designed using first-principles calculations and d-electronic theoretical alloy design methods. The addition of a small amount of Zr promotes the formation of the beta phase and refines the grains. The alloy exhibits excellent mechanical properties and corrosion resistance.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Aline Raquel Vieira Nunes, Sinara Borborema, Leonardo Sales Araujo, Taissa Zangerolami Lopes Rodrigues, Loic Malet, Jean Dille, Luiz Henrique de Almeida
Summary: A new generation of titanium alloys with non-toxic, non-allergenic elements and lower Young's modulus has been developed, showing potential for orthopedic implant manufacturing. The Ti-24Nb-4Mo-6Zr alloy has been identified as the most promising candidate, with the lowest Young's modulus and the highest microhardness.
Article
Chemistry, Multidisciplinary
Kateryna Smyrnova, Martin Sahul, Marian Harsani, Alexander Pogrebnjak, Volodymyr Ivashchenko, Vyacheslav Beresnev, Vyacheslav Stolbovoy, Lubomir Caplovic, Maria Caplovicova, Lubomir Vanco, Martin Kusy, Alexey Kassymbaev, Leonid Satrapinskyy, Dominik Flock
Summary: This work investigates the microstructure, phase composition, mechanical and tribological properties of WN-based nanocomposite multilayers with a second MeN (Me = Zr, Cr, Mo, Nb) layer. WN/MoN multilayers were studied for the first time using cathodic-arc physical vapor deposition (CA-PVD). First-principles calculations were also performed to gain more insight into the properties of the deposited multilayers. Among the four studied systems, WN/NbN showed the best performance as a protective coating in challenging conditions.
Article
Chemistry, Physical
M. Paul, Y. Alshammari, F. Yang, L. Bolzoni
Summary: This study investigates the processing and properties of Ti-Cu-Nb alloys obtained via powder metallurgy. The studied alloys have a lamellar microstructure, which is refined by the incremental addition of Cu+Nb and a eutectoid substructure is formed for sufficiently high contents of Cu. The resistance to plastic deformation increases monotonically due to the microstructural changes, while the ductility initially increases for small additions of Cu+Nb and subsequently decreases due to the impact of the residual pores.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Wenjie Wang, Kaihuai Yang, Qianting Wang, Pinqiang Dai, Hui Fang, Fangjuan Wu, Qiaohang Guo, Peter K. Liaw, Nengbin Hua
Summary: In this study, TiZrHfNbFex refractory high-entropy alloys (HEAs) were developed and their microstructure, mechanical properties, corrosion resistance, and wear resistance were investigated. The TiZrHfNbFe0.5 alloy exhibited excellent overall mechanical properties and superior corrosion resistance. Additionally, the wear resistance of the alloy increased with the increase in Fe content.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Huicong Li, Qi Cai, Shukui Li, Hanqing Xu
Summary: Through the preparation and investigation of the alloys, it was found that Ti-Nb-Mo-Ta alloys possess excellent mechanical properties, with the second-phase strengthening being the dominant mechanism for improving the mechanical properties of the alloys, which is of great significance for the preparation and application of the alloys.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
