a School of Resources Environment and Materials, Guangxi University, Nanning 530004, China
b School of Electronics Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China
c State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi University, Nanning 530004, China
d Guangxi Higher Education Key Laboratory of High Performance Structural Materials and Heat Treatment & Surface Processing, Guangxi University, Nanning 53004, China
e South Manganese Group Limited, Nanning 530029, China
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