热处理温度显著影响NAl(Zr)合金的显微组织和室温力学性能.本实验采用SEM,TEM,AES等手段对轧制处理后的试样进行了研究.随着热处理温度升高,再结晶体积百分数增加,再结晶晶粒尺寸增大,室温拉伸强度降低.＃但室温拉伸塑性随热处理温度升高而增加,在850℃热处理时达到最大值,然后随热处理温度升高而显著降低.俄歇能谱(AES)研究表明Zr在850℃热处理时的晶界偏聚量明显高于1 100℃热处理时的偏聚量,说明Zr在室温的塑化作用与其在晶界的分布有关.
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