不同润滑条件下碳钢齿轮齿面磨损和点蚀研究

doi:10.12068/j.issn.1005-3026.2023.07.008

摘要/Abstract

摘要： 电化学腐蚀会在齿面上形成不含Fe的夹杂物，夹杂物和Fe基体表面间的缝隙腐蚀可能成为点蚀的萌生位置，由于润滑油的周期性压力作用，缝隙不断扩大形成点蚀.不同润滑条件下的磨损和点蚀行为不同:在干摩擦条件下，点蚀的发生率最低，磨损最严重，轮齿表面发生高温氧化腐蚀并在齿面上形成了一层氧化层；在油润滑条件下，润滑油以油膜的形式黏附在齿面上，点蚀的发生率和面积随润滑条件的改善而增加，磨损程度随润滑条件的改善而减小.在干摩擦条件下齿面磨损为主要失效形式，充分润滑条件下齿面点蚀变为主要失效形式.润滑油供给量减少时，磨损深度最小值点会从节点位置向齿根方向发生偏移.

关键词: 不同润滑条件；齿面点蚀；齿面磨损；碳钢齿轮；FZG齿轮试验

Abstract: The electrochemical corrosion will form Fe-free inclusions on the tooth surface， and the crevice corrosion between the inclusions and the surface of the Fe matrix may become the initiation position of pitting corrosion. Due to the periodic pressure of the lubricating oil， the crevices will continue to expand and form pitting corrosion. Under the condition of dry friction， the incidence of pitting corrosion is the lowest and the wear is the most serious. High temperature oxidation corrosion occurs on the tooth surface and an oxide layer is formed on the tooth surface. Under the condition of oil lubrication， the lubricating oil is adhered to the tooth surface in the form of oil film， the incidence and area of pitting corrosion increase with the improvement of lubrication conditions， and the wear degree decreases with the improvement of lubrication conditions. Under the condition of dry friction， tooth surface wear is the main failure mode， and under the sufficient lubrication condition， tooth surface pitting becomes the main failure mode. When the lubricating oil supply decreases， the minimum wear depth will shift from the node position to the tooth root direction.

Key words: different lubrication condition; tooth surface pitting; tooth surface wear; carbon steel gear; FZG gear test

中图分类号:

TB114.3

张胜男，孙志礼，郭凡逸，王健. 不同润滑条件下碳钢齿轮齿面磨损和点蚀研究[J]. 东北大学学报（自然科学版）, 2023, 44(7): 972-981.

ZHANG Sheng-nan， SUN Zhi-li， GUO Fan-yi， WANG Jian. Study on Tooth Surface Wear and Pitting Corrosion of Carbon Steel Gears Under Different Lubrication Conditions[J]. Journal of Northeastern University(Natural Science), 2023, 44(7): 972-981.

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