Koo, Seoung Mo Kim, Gyung-ho Hwang, Dae Youn Kim, Hye Sung 2024-01-20T06:02:18Z 2024-01-20T06:02:18Z 2021-09-05 2015-10 1738-8228 https://pubs.kist.re.kr/handle/201004/124934 The microstructural evolution and mechanical properties during mechanical milling of pure magnesium powders were investigated as a function of the milling time and processing control agent. Commercially pure magnesium powders were mechanically milled in a SPEX 8000 shaker Mixer/Mill in an inert atmosphere. From the TEM observations and the analysis of the X-ray diffraction patterns, the steady state grain size was approximately 75 nm regardless of the addition of a processing control agent, while the milling time to reach steady state was shorter when a processing control agent (1wt% stearic acid) was added to the pure magnesium. It is noteworthy that the steady state hardness of the pure magnesium with the processing control agent was hardly different from that of the pure magnesium milled without PCA. Hence, we conclude that the oxides present in the magnesium surface function the same as that of the PCA, and their effectiveness is dependent on the characteristics of the magnesium surface oxides broken by mechanical milling. Korean KOREAN INST METALS MATERIALS NANOCRYSTALLINE METALS GRAIN-SIZE Mechanical Milling Behavior of Pure Magnesium Powder Article 10.3365/KJMM.2015.53.10.721 1 KOREAN JOURNAL OF METALS AND MATERIALS, v.53, no.10, pp.721 - 728 KOREAN JOURNAL OF METALS AND MATERIALS 53 10 721 728 scie scopus kci ART002039535 000362863400005 2-s2.0-84946827207 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article NANOCRYSTALLINE METALS GRAIN-SIZE mechanical alloying/milling pure magnesium X-ray diffraction transmission electron microscopy (TEM)