A Review of the Preparation, Machining Performance, and Application of Fe-Based Amorphous Alloys

Abstract

Amorphous alloy is an emerging metal material, and its unique atomic arrangement brings it the excellent properties of high strength and high hardness, and, therefore, have attracted extensive attention in the fields of electronic information and cutting-edge products. Their applications involve machining and forming, make the machining performance of amorphous alloys being a research hotspot. However, the present research on amorphous alloys and their machining performance is widely focused, especially for Fe-based amorphous alloys, and there lacks a systematic review. Therefore, in the present research, based on the properties of amorphous alloys and Fe-based amorphous alloys, the fundamental reason and improvement method of the difficult-to-machine properties of Fe-based amorphous alloys are reviewed and analyzed. Firstly, the properties of amorphous alloys are summarized, and it is found that crystallization and high temperature in machining are the main reasons for difficult-to-machine properties. Then, the unique properties, preparation and application of Fe-based amorphous alloys are reviewed. The review found that the machining of Fe-based amorphous alloys is also deteriorated by extremely high hardness and chemical tool wear. Tool-assisted machining, low-temperature lubrication assisted machining, and magnetic field-assisted machining can effectively improve the machining performance of Fe-based amorphous alloys. The combination of assisted machining methods is the development trend in machining Fe-based amorphous alloys, and even amorphous alloys in the future. The present research provides a systematic summary for the machining of Fe-based amorphous alloys, which would serve as a reference for relevant research.

Лазерне Зварювання Аморфних Стрічок Зі Сплаву На Основі Нікелю

“…Ще перші експериментальні дослідження аморфних і мікрокристалічних металевих матеріалів, проведені в 60-х роках минулого сторіччя, показали істотну залежність їх робочих параметрів від хімічного і фазового складу, ступеня невпорядкованності структури, швидкості й умов охолоджування, режимів термообробки й інших чинників, які визначаються металургійною і технологічною історією їх отримання [5]. У зв'язку з цим, першорядне значення набувають фізико-хімічні і металографічні дослідження, вивчення фазових діаграм і діаграм склад-властивість, а також технології отримання й обробки метастабільних і заморожених нестабільних сплавів [6]. Ці дослідження послідовно на різних етапах розвитку проблеми аморфних сплавів узагальнювалися в критичних оглядах і монографіях [7][8][9].…”

Fe‐Based Amorphous Alloy Coatings: A Review

“…Unlike crystalline materials, AAs have a unique short-range ordered atomic arrangement. [1][2][3] AAs are considered as disordered solids in which long-range order does not simulate crystalline materials and the absence of crystal defects such as grain boundaries and dislocations distinguishes such alloys from crystalline ones. [3][4][5] Figure 1 shows the internal atomic arrangement in the 3D space of AAs.…”

“…[3][4][5] Figure 1 shows the internal atomic arrangement in the 3D space of AAs. [3] These special atomic structures and isotropic nature of AAs result in excellent properties including low density, high strength and hardness, excellent corrosion and wear resistance, and soft magnetic properties, as well as sustainability [1][2][3][4][5] In fact, AAs combine the properties of metals and glasses. [6] During the first decades, research on AAs focused mainly on a few binary and ternary systems with relatively limited size.…”

“…[10][11][12][13][14] Fe-based AAs have high corrosion and wear resistance which makes them favorable to be used as the coating material. [3,15] Nowadays, Fe-based AAs are considered as a possible candidate for coating materials due to their high hardness, corrosion resistance, unique wear resistance, and relatively low cost. However, the inherent brittleness at room temperature and limited glass-forming ability (GFA) has restricted its engineering applications [16,17]…”

Effects of Stress on Loss and Magnetic Properties of Fe80Co3Si3B10P1C3 Amorphous Iron Cores

“…Amorphous alloy soft magnetic materials possess high magnetic permeability, elevated electrical resistivity, low coercivity, and minimal core loss. They exhibit facile magnetization and demagnetization processes, surpassing traditional silicon steel sheet materials in soft magnetic performance [1][2][3][4][5]. Electric motors are pivotal power devices in industrial production and daily life, with their electricity consumption ranking at the forefront among various electrical appliances.…”