研究了原位TiC颗粒强化的Fe-26Cr-14Ni基复合材料的常温和高温拉伸性能,分析了该复合材料的断裂特征.结果表明,含5%和10%(体积分数,下同)的TiC复合材料的常温和高温综合拉伸性能明显高于基体合金;TiC含量为10%时具有最佳的高温拉伸性能.随着TiC体积分数的提高,复合材料的常温断裂由韧性断裂向脆性断裂转变.该复合材料的高温断口形貌主要呈现出韧性断裂的特征.
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