Mechanical alloying

Mechanical alloying (MA) is a solid-state and powder processing technique involving repeated cold welding, fracturing, and re-welding of blended powder particles in a high-energy ball mill to produce a homogeneous material. Originally developed to produce oxide-dispersion strengthened (ODS) nickel- and iron-base superalloys for applications in the aerospace industry,[1] MA has now been shown to be capable of synthesizing a variety of equilibrium and non-equilibrium alloy phases starting from blended elemental or pre-alloyed powders.[2] The non-equilibrium phases synthesized include supersaturated solid solutions, metastable crystalline and quasicrystalline phases, nanostructures, and amorphous alloys.The method is sometimes is classified as a surface severe platic deformation method to achieve nanomaterials.[3]

Alloying during high-energy milling.[4]
  1. ^ H. K. D. H. Bhadeshia, Practical ODS Alloys, Materials Science and Engineering A, 223 (1997)64-77
  2. ^ Suryanarayana C. Mechanical alloying and milling, Progress in Materials Science 46 (2001) 1-184
  3. ^ Edalati, Kaveh; et al. (2024). "Severe plastic deformation for producing superfunctional ultrafine-grainedand heterostructured materials: An interdisciplinary review". Journal of Alloys and Compounds. 1002: 174667. doi:10.1016/j.jallcom.2024.174667.
  4. ^ Suryanarayana, C (January 2001). "Mechanical alloying and milling". Progress in Materials Science. 46 (1–2): 1–184. doi:10.1016/S0079-6425(99)00010-9.