| 초록 |
Recently, the need for cutting tools for difficult-to-cut materials has become important as the specific gravity of difficult-to-cut materials with high hardness has increased sharply, especially in advanced major industries such as aerospace and automobiles. Thin films using alloys such as AlCr and TiAl are widely used to improve the wear resistance and durability of tools, and recently, research on designing ternary and quaternary alloys based on the above alloys and applying them to the thin film is continuing. In this study, AlCrFeX (X = Ti, Si, Zr) alloy powder was produced based on the AlCr alloy to further improve various properties such as heat resistance and corrosion resistance. The alloy powder manufacturing was conducted by MA (Mechanical Alloy) using the Planetary Ball Milling process to improve the microstructure and composition uniformity. The ball milling energy associated with changes in process conditions was calculated. The produced powder is sintered using the SPS (Spark Plasma Sintering) process, and as the ball milling energy increases, the applied load during sintering increases, and the sintered body has a sintering density of 95% or more was produced. |
