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在三个不同的磨损系统中,研究了几种不同强化机制合金钢的磨损特性,并进行了模拟高应力磨损的犁削试验;利用OM、SEM、TEM及X-Ray等研究了材料的磨损机制和组织在磨损过程中的行为。结果表明,载荷是影响磨损的重要参数,在低应力条件下,材料的耐磨性基本上服从Archard方程。但在高应力,冲击应力条件下,组织因素是材料耐磨性的决定因素;残余奥氏体的存在是有益的,等温转变组织和板条马氏体为基的组织比片状马氏体为基的材料有较好的耐磨性,与其它强化机制相比,金属间化合物对磨损作用极小,固溶强化提高耐度性更有效,用能量分析法提出一个与材料应变、应变硬化及断裂性质有关的耐磨性通用表达式,最后讨论了各组织参数对磨损的影响。
In three different wear systems, the wear properties of several alloy steels with different strengthening mechanisms were studied and the plow cutting experiments simulating the high-stress wear were carried out. The wear of the alloy was investigated by OM, SEM, TEM and X-Ray Mechanism and organization behavior during wear. The results show that the load is an important parameter that affects the wear. Under low stress conditions, the wear resistance of the material basically follows the Archard equation. However, under the conditions of high stress and impact stress, the tissue factor is the determining factor of the wear resistance of the material. The presence of retained austenite is beneficial. The isothermal transformation of the microstructure and lath martensite is more pronounced than the lamellar martensite Based materials have better wear resistance, compared with other strengthening mechanisms, the intermetallics have little effect on the wear and tear, and the solid solution strengthening is more effective for improving the durability. An energy analysis method is proposed to be in accordance with the material strain and strain hardening And general properties of the wear resistance of the fracture, and finally discussed the influence of the parameters of the tissue on the wear.