铁基非晶态合金涂层表面耐磨损及耐腐蚀性能研究

Wear resistance and corrosion resistance of Fe-based amorphous alloy coating

摘要:

铁基非晶态合金凭借优异的耐磨和耐腐蚀性能在石油、煤电、钢铁和船舶等领域得到广泛应用。本文利用超音速火焰喷涂工艺在316不锈钢基体上制备铁基非晶态合金涂层，研究了涂层的磨削性能、涂层磨削表面的耐磨性能和耐腐蚀性能。研究结果表明三个磨削参数中，磨削深度对涂层表面的表面粗糙度及耐腐蚀性能影响最大，进给速度次之；而进给速度对涂层表面耐磨性能影响最大，磨削深度次之；磨削速度对涂层表面的表面粗糙度、耐磨性能和耐腐蚀性能影响较小。最后，根据不同的涂层性能要求对磨削参数组合进行优化。

Abstract:

Fe-based amorphous alloy is widely applied in the fields of petroleum, coal, steel and ship etc. because of its excellent wear and corrosion resistance. Fe-based amorphous alloy coatings are prepared by high velocity oxygen fuel thermal spraying on 316 stainless steel substrate in this paper. Fe-based amorphous alloy coatings’ grinding performance, the grinded surface’ wear resistance and corrosion resistance are explored separately. The results show that the grinding depth has the most impact on surface roughness and corrosion resistance of the coatings’ surface, feed speed takes the second place; the feed speed has the most impact on wear resistance of the coatings’ surface, grinding depth takes the second place; the grinding speeding has the least impact on surface roughness, wear resistance and corrosion resistance of the coatings’ surface. Finally, the best grinding parameters combinations are selected according to the different characteristics of coatings.