H13鋼在鋁液中的熔蝕-磨損行為與交互作用機(jī)理H13鋼在鋁液中的熔蝕-磨損行為與交互作用機(jī)理Corrosion-wear behavior and synergy mechanism of H13 tool steel in molten aluminum 通過對(duì)比分析H13鋼在高溫干摩擦磨損及熔蝕-磨損兩種條件下的磨痕形貌、磨損產(chǎn)物及材料流失特征，研究H13鋼在鋁液中的熔蝕-磨損行為以及腐蝕與磨損的交互作用機(jī)理。結(jié)果表明：H13鋼在鋁液中熔蝕-磨損的材料流失量遠(yuǎn)高于其單純腐蝕及單純磨損條件下材料流失量之和。在本實(shí)驗(yàn)條件下，熔蝕與磨損的交互作用率均不小于93.9%。對(duì)已生成界面金屬間化合物為典型腐蝕特征的這一類材料而言，其在鋁液中的熔蝕-磨損性能主要由界面金屬間化合物的性質(zhì)、生成速度及其與基體的界面結(jié)合情況所決定。 Through analyzing and comparing the surface morphologies, wear debris and material loss of H13 tool steel both under high temperature dry sliding wear and corrosion-wear in molten aluminum conditions, the corrosion-wear behavior and synergy mechanism between corrosion and wear of H13 tool steel in molten aluminum were investigated. The results show that the material loss of corrosion-wear is much higher than the total material loss of purely corrosion and purely wear. The synergy rate of corrosion-wear is not less than 93.9% in our experiments. For those materials, the typical corroded feature is to generate intermetallic compound layer between the substrate and molten aluminum, the corrosion-wear resistance of material is depended on the formation rate and characterization of intermetallic compound layer, as well as the combination between the substrate and the intermetallic zone.
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