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借助能谱的成分分析，用透射电镜选区电子衍射（SAED）技术，确定了堆焊金属的组织结构，并对堆焊金属、2.25Cr－1Mo钢母材及304不锈钢的高温（900℃）抗氧化性能进行试验比较．研究结果表明，用Fe-Al则合金条（ω（Al）＝16％）堆焊2．25Cr－1Mo钢，其堆焊层组织为α－Fe（Al）堆焊层金属的高温抗氧化性能优于304不锈钢．
With the analysis of energy spectrum, the structure of deposited metal was confirmed by the transmission electron microscopy (SEM) and the high temperature (900 ℃) resistance of surfacing metal, 2.25Cr-1Mo base metal and 304 stainless steel Oxidation performance of the test comparison. The results show that, with Fe-Al alloy strip (ω (Al) = 16%) overlay 2.25Cr-1Mo steel, the surfacing layer structure is α-Fe (Al) surfacing layer of metal high temperature oxidation resistance Better than 304 stainless steel.