Abstract
In this study, CrCuFeMnMo0.5Ti multicomponent alloy bulks were prepared by powder metallurgy of mechanical alloying and sintering. A simple body-centered cubic (bcc) solid solution was prepared after 40 h ball milling of the raw CrCuFeMnMo0.5Ti metallic powder. Particles of the alloyed powder are in microsized structures, which are actually a soft agglomeration of lamellar grains with thicknesses less than 1 μm. Meanwhile, the lamellar granules are consisted of nanosized grains under rigid cold welding. The 80-h ball-milled powder was consolidated by cold pressing and subsequent sintering at 800°C. The observed main phase in the consolidated sample after milling for 80 h is still a bcc solid solution. The solidified sample of 80-h ball-milled powder exhibits a Vickers hardness of 468 HV, which is much higher than 171 HV of the counterpart prepared from the raw metallic powder.
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Acknowledgements
Dr. Kuibao Zhang sincerely appreciates financial support of the Open Project of State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials (Southwest University of Science and Technology, No. 12zxfk15) and Doctoral Project of Southwest University of Science and Technology (No. 11zx7147).
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Zhang, K., Wen, G., Dai, H. et al. Synthesis and Characterization of CrCuFeMnMo0.5Ti Multicomponent Alloy Bulks by Powder Metallurgy. JOM 66, 2043–2049 (2014). https://doi.org/10.1007/s11837-014-0997-9
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DOI: https://doi.org/10.1007/s11837-014-0997-9