High entropy alloys have advantages not found in conventional alloys, such as high strength, high-temperature resistance, corrosion resistance, etc. And unlike conventional alloys, the properties of HEAs are jointly influenced by multiple constituent elements. ( Yeh et al., 2004) prepared multi-principal composition alloys with equal or nearly equal molar ratios, and named such multi-principal alloys as high entropy alloys (HEAs) for the first time. To obtain alloy materials with better properties, in the 1990s, researchers got alloys with high mixing entropy by adding alloy components ( Peker and Johnson, 1993 Choi-Yim and Johnson, 1997). New approaches are needed if the compositional space for exploration is significantly enlarged. However, such a primary-element approach dramatically limits the total number of possible element combinations and, therefore, the total number of alloys, most of which have been identified and exploited. For example, C and Cr elements are added to steel to improve strength and corrosion resistance, and Al-Mn and Al-Mg alloys formed by adding Mn and Mg to aluminum have good corrosion resistance and plasticity ( Zhang et al., 2008 Serda, 2013 Liu et al., 2021 Zhou et al., 2022). People have been changing the properties of materials by adding relatively small amounts of secondary elements to the primary elements. In recent decades, with the continuous development of science and technology, people have put forward higher and higher requirements for the comprehensive properties of metal materials. This review summarizes the composition system of Bio-HEAs in recent years, introduces their biocompatibility and mechanical properties of human bone adaptation, and finally puts forward the following suggestions for the development direction of Bio-HEAs: to improve the theory and simulation studies of Bio-HEAs composition design, to quantify the influence of composition, process, post-treatment on the performance of Bio-HEAs, to focus on the loss of Bio-HEAs under actual service conditions, and it is hoped that the clinical application of the new medical alloy Bio-HEAs can be realized as soon as possible.Īs one of the material foundations of human production and life, metal materials have always played an essential role in the development history of human civilization. In contrast, biological high-entropy alloys (Bio-HEAs) are expected to be a new bio-alloy for biomedicine due to their excellent biocompatibility and tunable mechanical properties. High entropy alloys (HEAs) are nearly equimolar alloys of five or more elements, with huge compositional design space and excellent mechanical properties. Due to the low compatibility of traditional metal implant materials with the human body, it is urgent to develop new biomaterials with excellent mechanical properties and appropriate biocompatibility to solve the adverse reactions caused by long-term implantation. With the continuous progress and development in biomedicine, metallic biomedical materials have attracted significant attention from researchers. ![]() ![]() 3State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, China.2Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China.1School of Materials Engineering, Shanghai University of Engineering Science, Shanghai, China.Junyi Feng 1 Yujin Tang 2* Jia Liu 2* Peilei Zhang 1* Changxi Liu 3 Liqiang Wang 3
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |