Yu. A. Kurganova, A. G. Kolmakov, S. V. Kurganov, O. S. Ivanova, M. D. Govorov, S. Yu. Kottsov, A. D. Filippova, A. E. Baranchikov, V. K. Ivanov, M. A. Kaplan, E. E. Baranov
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引用次数: 0
Abstract—The mechanical properties of composite materials for antifriction purposes based on an Al–Si–Cu alloy reinforced with WO3 nanoparticles with or without copper have been investigated. The best combination of properties was found in composites produced by adding 10 wt % WO3 powder or 1 wt % WO3 + Cu powder mixture to the alloy at a mass ratio of WO3 : Cu = 1 : 3. The mechanical properties of these composites under compression are offset yield strength \(\sigma _{{0.2}}^{{\text{c}}}\) = 240 МPa and buckling stress σcr = 300 MPa, which is 4 and 2.4 times higher, respectively, than those of Al—Si–Cu matrix alloy. The mechanical properties of these composites in bending are \(\sigma _{{0.25}}^{{\text{b}}}\) = 250–260 MPa and \(\sigma _{{\text{u}}}^{{\text{b}}}\) = 380–390 MPa, which are 5 times higher than those of matrix alloy.
摘要：研究了纳米WO3增强Al-Si-Cu合金抗磨复合材料的力学性能。添加10 wt的复合材料的性能组合最好 % WO3 powder or 1 wt % WO3 + Cu powder mixture to the alloy at a mass ratio of WO3 : Cu = 1 : 3. The mechanical properties of these composites under compression are offset yield strength \(\sigma _{{0.2}}^{{\text{c}}}\) = 240 МPa and buckling stress σcr = 300 MPa, which is 4 and 2.4 times higher, respectively, than those of Al—Si–Cu matrix alloy. The mechanical properties of these composites in bending are \(\sigma _{{0.25}}^{{\text{b}}}\) = 250–260 MPa and \(\sigma _{{\text{u}}}^{{\text{b}}}\) = 380–390 MPa, which are 5 times higher than those of matrix alloy.
期刊介绍：
Russian Metallurgy (Metally) publishes results of original experimental and theoretical research in the form of reviews and regular articles devoted to topical problems of metallurgy, physical metallurgy, and treatment of ferrous, nonferrous, rare, and other metals and alloys, intermetallic compounds, and metallic composite materials. The journal focuses on physicochemical properties of metallurgical materials (ores, slags, matters, and melts of metals and alloys); physicochemical processes (thermodynamics and kinetics of pyrometallurgical, hydrometallurgical, electrochemical, and other processes); theoretical metallurgy; metal forming; thermoplastic and thermochemical treatment; computation and experimental determination of phase diagrams and thermokinetic diagrams; mechanisms and kinetics of phase transitions in metallic materials; relations between the chemical composition, phase and structural states of materials and their physicochemical and service properties; interaction between metallic materials and external media; and effects of radiation on these materials.
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