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用差热分析法测定了 Fe-Mn-Al 三元系相图的两个具有实用意义的 4wt％Al 和8wt％Al 纵截面图、所测得的相变温度、相区关系与已测定的等温截面图的结果相吻合。文中讨论了合金试作中的铝成分偏差对差热分析测得的相变温度的影响。
Two practical 4wt% Al and 8wt% Al longitudinal sections of the Fe-Mn-Al ternary system phase diagram were measured by DTA. The measured phase transition temperatures and phase relationships were compared with the measured Isotherm cross-section of the results match. In this paper, the influence of the deviation of aluminum composition on the phase transition temperature measured by differential thermal analysis was discussed.