Fe-Cr合金是固体氧化物燃料电池(SOFCs)连接板材料的最佳候选之一,但仍存在氧化速率较快以及热膨胀系数(TEC)较大等问题.采用热胀系数小的W和Mo元素,研究了W或Mo对Fe-21Cr合金热膨胀系数、面电阻及抗氧化特性的影响.研究结果表明,适量W或Mo的添加可以降低Fe-21Cr合金的热膨胀系数,并提高其750℃高温抗氧化性能.
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