不同条件下SA533 Gr.B合金钢与石墨摩擦副的摩擦磨损性能
Friction and Wear Properties of Friction Pair Between SA533 Gr.B Alloy Steeland Graphite under Different Conditions
摘 要
分别将石墨化度和抗压强度不同的2种石墨与SA533 Gr.B合金钢组成摩擦副，用环块摩擦试验机测试不同润滑方式下的摩擦磨损性能，对磨损形貌进行观察。结果表明：在干摩擦稳定阶段，合金钢与石墨化度高且抗压强度低的石墨配副时摩擦副的摩擦因数大于与石墨化度低且抗压强度高的石墨配副，同时石墨化度低且抗压强度高的石墨的磨损率较低；在硼酸溶液中湿摩擦条件下，合金钢与不同石墨配副时摩擦副的摩擦因数差异不大，呈波动变化趋势，石墨的磨损率均高于干摩擦条件下；在剪切应力下，石墨化度低且抗压强度高的石墨在合金钢表面形成的转移膜较薄，且与钢基体结合紧密；石墨在干摩擦和硼酸溶液中湿摩擦条件下的磨损机制均以磨粒磨损为主。
石墨
摩擦因数
磨损率
转移膜
alloy steel
graphite
friction coefficient
wear rate
transfer film
Abstract
Two kinds of graphite with different graphitization degree and compressive strength were combined with SA533 Gr.B alloy steel to form friction pair. The friction and wear properties under different lubrication conditions were tested by ring block friction testing machine, and the wear morphology was observed. The results show that in the stable stage of dry friction, the friction coefficient of the friction pair between alloy steel and graphite with high graphitization degree and low compressive strength was greater than that with graphite with low graphitization degree and high compressive strength, and the wear rate of graphite with low graphitization degree and high compressive strength was smaller. Under the condition of wet friction in boric acid solution, the friction coefficient of the friction pair between alloy steel and different graphite had little difference and fluctuated, and the wear rate of graphite was higher than that under dry friction. The transfer film formed by graphite with low graphitization degree and high compressive strength on alloy steel surface under shear stress was thick and closely bonded with steel substrate. The wear mechanism of graphite under dry friction condition and wet friction condition in boric acid solution was mainly abrasive wear.
中图分类号 TB333 DOI 10.11973/jxgccl202204009
所属栏目 材料性能及应用
基金项目 2019年度（工业强基）产业转型升级发展专项资金资助项目（GYQJ-2019-1-24）
收稿日期 2021/5/11
修改稿日期 2022/3/9
网络出版日期
作者单位点击查看
备注田洪志(1976-),男,辽宁本溪人,高级工程师,硕士通信作者:王文东正高级工程师
引用该论文: TIAN Hongzhi,WANG Wendong,WANG Fei. Friction and Wear Properties of Friction Pair Between SA533 Gr.B Alloy Steeland Graphite under Different Conditions[J]. Materials for mechancial engineering, 2022, 46(4): 56～62
田洪志,王文东,王飞. 不同条件下SA533 Gr.B合金钢与石墨摩擦副的摩擦磨损性能[J]. 机械工程材料, 2022, 46(4): 56～62
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【4】王文东, 史科, 薛春, 等.高强石墨/SA 508 Gr3钢摩擦副的摩擦磨损性能[J].理化检验(物理分册), 2015, 51(6):426-430. WANG W D, SHI K, XUE C, et al.Friction and wear properties of high strength graphite/SA 508 Gr3 steel pair[J].Physical Testing and Chemical Analysis (Part A:Physical Testing), 2015, 51(6):426-430.
【5】董泽忠, 杜鸣杰, 史科, 等.核电反应堆压力容器支座减摩板往复摩擦磨损性能[J].理化检验(物理分册), 2016, 52(8):552-556. DONG Z Z, DU M J, SHI K, et al.Friction and wear properties of antifriction plate for support of reactor pressure vessel in a nuclear power plant[J].Physical Testing and Chemical Analysis (Part A:Physical Testing), 2016, 52(8):552-556.
【6】KANE J, KARTHIK C, BUTT D P, et al.Microstructural characterization and pore structure analysis of nuclear graphite[J].Journal of Nuclear Materials, 2011, 415(2):189-197.
【7】FENG S L, XU L, LI L, et al.Sealing nuclear graphite with pyrolytic carbon[J].Journal of Nuclear Materials, 2013, 441(1/2/3):449-454.
【8】谢文蛟, 刘洪波, 刘金平, 等.原料种类对等静压石墨性能的影响[J].炭素技术, 2013, 32(4):39-43. XIE W J, LIU H B, LIU J P, et al.Effects of raw material type on the performances of isostatic pressing graphite[J].Carbon Techniques, 2013, 32(4):39-43.
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