Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第27卷    第1期    总第214期    2017年1月

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文章编号:1004-0609(2017)-01-0089-08
H13钢在铝液中的熔蚀-磨损行为与交互作用机理
肖华强1,陈维平2

(1. 贵州大学 机械工程学院,贵阳 550025;
2. 华南理工大学 国家金属材料近净成形工程技术研究中心,广州 510640
)

摘 要: 通过对比分析H13钢在高温干摩擦磨损及熔蚀-磨损两种条件下的磨痕形貌、磨损产物及材料流失特征,研究H13钢在铝液中的熔蚀-磨损行为以及腐蚀与磨损的交互作用机理。结果表明:H13钢在铝液中熔蚀-磨损的材料流失量远高于其单纯腐蚀及单纯磨损条件下材料流失量之和。在本实验条件下,熔蚀与磨损的交互作用率均不小于93.9%。对已生成界面金属间化合物为典型腐蚀特征的这一类材料而言,其在铝液中的熔蚀-磨损性能主要由界面金属间化合物的性质、生成速度及其与基体的界面结合情况所决定。

 

关键字: 熔蚀-磨损;金属间化合物;交互作用;铝液

Corrosion-wear behavior and synergy mechanism of H13 tool steel in molten aluminum
XIAO Hua-qiang1, CHEN Wei-ping2

1. School of Mechanical Engineering, Guizhou University, Guiyang 550025, China;
2. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China

Abstract: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.

 

Key words: corrosion-wear; intermetallics; synergy; molten aluminum

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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