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Ｎａ２ＳｉＯ３、Ｎａ２ＭｏＯ４、（ＮＨ２）ＮＳ和（ＮａＰＯ３）６４种缓蚀剂对灰铸铁在蒸馏水中的腐蚀，有不同程度的减缓作用，其中Ｎａ２ＳｉＯ３在浓度为００１～０１ｍｏｌ／ｌ的范围内，同不加任何缓蚀剂的蒸馏水相比，能明显降低灰铸铁的腐蚀速率．经过磨损试验发现，在加有Ｎａ２ＳｉＯ３的蒸溜水的润滑下，Ｓｉ３Ｎ４－灰铸铁摩擦副优异的摩擦学性能没有受到影响，在磨程达２ｋｍ以后，摩擦系数降为００２～００１之间，而此时的系统磨损率则接近于０．经过初步的表面分析，发现陶瓷和灰铸铁磨面均十分光滑，而且灰铸铁磨面上有一层膜状物生成．通过俄歇电子能谱分析表明，这层膜状物的构成（原子浓度）为Ｓｉ（３４％）、Ｏ（３８％）、Ｆｅ（１２％）和Ｃ（６％），厚度为００５μｍ．由于这层膜的存在保护了铸铁和陶瓷表面，使磨面变得光滑，具有优越的摩擦学性能．
Na2SiO3, Na2MoO4, (NH2) NS and (NaPO3) 64 kinds of corrosion inhibitors on the corrosion of gray cast iron in distilled water, with different degrees of slowing down, in which Na2SiO3 in the concentration range of 0 01 ~ 0 1mol / l , Compared with distilled water without any corrosion inhibitor, can significantly reduce the corrosion rate of gray cast iron. After abrasion test, it is found that the tribological properties of Si3N4-gray cast iron friction pair are not affected by the lubrication with distilled water added with Na2SiO3. After 2km of grinding, the friction coefficient is reduced to 002 ~ 001 While the system wear rate at this time is close to zero. After a preliminary surface analysis, it was found that both the ceramic and gray cast iron surfaces were very smooth and the gray cast iron surface had a film-like formation. The Auger electron spectroscopy analysis showed that the film composition (atomic concentration) was Si (34%), O (38%), Fe (12%) and C (6%), and the thickness was 005 μm . The presence of this film protects the cast iron and ceramic surfaces, smoothing the finish, and has superior tribological properties.