期刊
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
卷 23, 期 -, 页码 680-686出版社
ELSEVIER
DOI: 10.1016/j.jmrt.2023.01.041
关键词
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Non-BCC high entropy alloys were investigated in their as-cast and oxidized condition, and the effect of Si on the microstructures in Al-Cu-Ni-Mn alloy was explored. It was found that the addition of Si only changed the composition of the identified phases, while the microstructure remained unaltered.
Non-BCC high entropy alloys have been created and characterized in their as-cast and oxidized condition. The effect of Si on the microstructures in Al-Cu-Ni-Mn alloy has also been explored. The microstructure remained unaltered by the addition of Si. It has been observed that the addition of Si only changes the composition of the three phases that have been identified. Three phases with elements rich in: (a) Ni, (b) Mn, and (c) either Al-Cu-Ni in quaternary alloy or Al-Cu-Mn in Si alloy have been observed. It is suggested that Si draws Ni out of solution for Al-Cu-Ni rich phase in preference for Mn. Macrohardness (HRB) of the two alloys and microhardness (HV) of the three phases were found to be HRB 74 for the Al-Cu-Ni-Mn alloy and HRB 114 for the Al-Cu-Ni-Mn-Si alloy; and HV 265 to HV 271 for the Al-Cu-Ni-Mn alloy phases and HV 411 to 968 for the Al-Cu-N-Mn-Si alloy phases.(c) 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
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