研究回火温度、时间和次数对Fe-5%V-5%W-5%Mo-5%Cr-3%Nb-2%Co-2%C(Fe-V-W-Mo)组织和性能的影响.结果表明,回火温度低于350℃,Fe-V-W-Mo合金硬度变化不明显,超过350℃,随着回火温度升高,硬度先逐渐降低,在475℃左右开始回升,在525℃时,达到最高值.Fe-V-W-Mo合金经一次回火后,硬度基本达到最高值,三次回火后,硬度反而降低.回火温度低于475℃,Fe-V-W-Mo合金韧性随回火温度升高而提高.超过475℃,韧性下降.回火温度超过525℃后,韧性又出现提高.在500-550℃回火,Fe-V-W-Mo合金具有优异的耐磨性.
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