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本文对等离子喷涂ZrO_2+MgO和Al_2O_3+40％ZrO_2陶瓷涂层、Mo+NiCrBSi(Ar/H_2)和Mo+NiCrBSi(N_2/H_2)混合粉末涂层,以及Mo+4％O_2渗氧涂层等的摩擦学特性进行了试验研究,测定了它们的抗咬合裁荷及其在边界润滑状态下的磨损率。结果表明,Al_2O_3+40％ZrO_2陶瓷涂层/铸铁副的抗咬合性能最好,在其轻度粘着的表面上形成了一层表面膜;Mo+NiCrBSi(N_2/H_2)金属涂层是一种实用性能较好的活塞环材料;在粘着磨损条件下,涂层材料的抗咬合性越好,与之配磨的铸铁材科的磨损率越低;涂层材料的抗咬合性与其本身的固有特性及孔隙率等有关。
In this paper, plasma spraying of ZrO 2 + MgO and Al 2 O 3 + 40% ZrO 2 ceramic coatings, Mo + NiCrBSi (Ar / H 2) and Mo + NiCrBSi (N 2 / H 2) mixed powders and Mo + 4% The tribological properties of the composites were tested and their anti-seizure load and wear rate at the boundary lubrication condition were measured. The results show that the anti-seize property of Al 2 O 3 + 40% ZrO 2 ceramic coating / cast iron pair is the best, and a surface film is formed on the lightly adhered surface. The Mo + NiCrBSi (N 2 / H 2) Good performance piston ring material; under the conditions of adhesive wear, the better the anti-seizure of the coating material, the wear rate of the cast iron material is lower; the anti-seizure property of the coating material and its inherent Characteristics and porosity and so on.