昆明理工大学机电工程学院,昆明,650093
网络首发:2010-01-10,
纸质出版:2010
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蒋业华, 黎清宁, 卢德宏, 等. 复合冲击磨损条件下高锰钢的腐蚀磨损行为及其交互作用[J]. 西安交通大学学报, 2010,44(1):105-111.
Corrosive Wear Behavior and Synergy of High Manganese Steel under Combined Impact Abrasion[J]. 2010, 44(1): 105-111.
采用自制的冲击腐蚀磨损试验装置
研究了湿磨弱酸性锡矿浆体系中高锰钢在静态、充氧、搅拌和冲击等复合条件下的腐蚀磨损行为
并利用失重法、电化学法和线性回归法
定量分析了腐蚀、磨损和腐蚀磨损中交互作用各分量的相对比率. 结果表明:充氧和搅拌促进了氧在高锰钢表面的传质过程
使腐蚀率较静态分别增加了1.05和2.04倍; 高锰钢的累积质量损失、表面显微硬度和腐蚀磨损交互作用均随着冲击功的增加而增大; 在不同冲击功下
高锰钢的腐蚀增量比静态腐蚀率高15.15 ~ 25.54倍
腐蚀磨损交互作用所占比率为12.07% ~ 26.69%
表明磨损与腐蚀之间存在着一定的协同促进作用; 在冲击功为1 J时
交互作用以磨损促进腐蚀为主; 在冲击功为2 ~ 4 J时
交互作用以腐蚀促进磨损为主.
Corrosive wear behavior and the synergy of high manganese steel under static
oxygen aeration
stirring and corrosive impact abrasion conditions were investigated by using self-made impact corrosive wear tester. The corresponding proportions of individual corrosion
wear and corrosive wear synergy to the total material loss were evaluated via electrochemical method
cumulative mass loss rate analysis and linear regression analysis. The results reveal that oxygen aeration and stirring accelerate the transport of oxygen to the substrate surface
and the corrosion rates increase by 1.05 and 2.04 times than that under static corrosion
respectively. The cumulative wear mass loss
surface hardness and corrosive wear synergy of the high manganese steel increase with increasing impact energy. The electrochemical corrosion rate gets 15.15 - 25.54 times higher than the static corrosion rate under different impact energy
and the proportion of corrosive wear synergy to total material loss is 12.07% - 26.69%
which indicates certain synergistic effect between corrosion and wear. Wear-accelerated corrosion is the dominating mechanism of the synergy under low impact energy(1 J)
and corrosion-accelerated wear becomes the dominating mechanism under high impact energy(2 - 4 J).
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