用等离子快速烧结(SPS)法烧结制备碳化钨/钢基复合材料,然后用真空管式炉对其进行界面重熔,研究了重熔温度对界面反应的影响以及界面反应区的生成机制.结果表明,界面反应可在固态条件下发生,且随着重熔温度的提高界面反应区的宽度呈增大的趋势.界面反应的产物为Fe3W3C,其形成过程为:在约1314℃碳化钨颗粒内部发生反应2WC→W2C+C,然后在约1341℃发生W2C与基体的反应生成Fe3W3C.
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