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用ＴＧＡ、ＸＲＤ、ＳＥＭ／ＷＤＳ对Ｆｅ４０Ｍｏ合金在１ｋＰａ及７００～９００℃的硫蒸气中的硫化动力学、产物层的组成和结构进行了分析观察。结果表明，８８０℃加炉冷热处理的样品硫化时遵从抛物线规律，１０００℃加淬火样品则可表现出线性规律。合金的硫化速度比Ｆｅ２０Ｍｏ低１～２个数量级，但仍比纯Ｍｏ快得多。发现ＭｏＳ２层可在产物层中出现，其晶体的片层取向垂直于样品表面，有利于传质。合金硫化的活化能与纯Ｍｏ的接近，表明Ｆｅ４０Ｍｏ合金在实验条件下受其中Ｍｏ的硫化控制。
The kinetics of vulcanization, the composition and structure of the product layer were investigated by TGA, XRD and SEM / WDS in the sulfur vapor of 1kPa and 700-900 ℃. The results show that the samples annealed at 880 ° C follow the parabolic law when vulcanized and the samples quenched at 1000 ° C show a linear law. The vulcanization rate of alloy is 1 ~ 2 orders of magnitude lower than that of Fe20Mo, but it is still much faster than that of pure Mo. The MoS2 layer was found to appear in the product layer, with the crystal layer oriented perpendicular to the sample surface, favoring mass transfer. The activation energy of the alloy vulcanization is close to that of the pure Mo, indicating that the Fe40Mo alloy is controlled by the sulfidation of Mo under the experimental conditions.