Experimental Determination of Phase Equilibria in the Mn-Zn Binary System
Journal of Phase Equilibria and Diffusion(2024)
摘要
Phase equilibria in the Mn-Zn binary system were experimentally determined by chemical composition examination, crystal structure determination, and thermal analysis. Major changes were detected for the β , ε , and δ phases. The β -B2 single-phase region could not be confirmed in the studied system because a disordered body-centered cubic structure, which is identical to the δ Mn phase, was confirmed in a quenched sample from the previously proposed region of β phase. The ε phase has been controversial whether the phase is separated into ε , ε 1 , and ε 2 phases or not. By studying a diffusion couple and several alloy compositions, it was established that the ε , ε 1 , and ε 2 phases are not separate and comprise a single ε phase. Furthermore, the δ phase is not present in the Zn-rich region of the system because the corresponding invariant reactions were not detected via thermal analysis.
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关键词
coating materials,experimental phase equilibria,intermetallic compound,phase diagram
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