TMCP型FH36级船用钢板在不同温度下的摩擦磨损性能研究  

Friction and Wear Properties of TMCP FH36 Marine Steel Plate at Different Temperatures

作　　者：孙士斌[1] 强强 王东胜 赵子铭 康健[3] 常雪婷 SUN Shibin;QIANG Qiang;WANG Dongsheng;ZHAO Ziming;KANG Jian;CHANG Xueting(School of Logistics Engineering,Shanghai Maritime University,Shanghai 201306,China 2.School of Ocean Science and Engineering,Shanghai Maritime University,Shanghai 201306,China 3.State Key Laboratory of Rolling and Automation,Northeastern University,Liaoning Shenyang 110819,China)

机构地区：[1]上海海事大学物流工程学院,上海201306 [2]上海海事大学海洋科学与工程学院,上海201306 [3]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110819

出　　处：《摩擦学学报》2023年第4期421-428,共8页Tribology

基　　金：上海市科委技术标准项目(21DZ2205700);上海市教委“曙光”计划项目(19SG46);科技部国际合作交流项目(CU03-29);上海深海材料工程技术中心项目(19DZ2253100);轧制技术及连轧自动化国家重点实验室开放课题(2020RALKFKT008)资助.

摘　　要：FH36钢材作为使用在低温恶劣环境下的大型货轮、客轮及海工装备急需基础材料,因其低温高强以及高韧性能得到广泛关注.FH36钢材在冰区环境使用时,不可避免受到冰载荷摩擦磨损破坏作用.本研究中对使用控轧控冷工艺(Thermo mechanical control process,TMCP)制备的不同厚度的FH36级船用钢板在20、−5和−20℃条件下的摩擦磨损性能开展试验分析.使用UMT-2 TriboLab型多功能摩擦磨损试验机进行摩擦磨损试验,试验选取磨球为氧化铝磨球,直径为8 mm,摩擦方式是球面接触,往复摩擦距离5 mm,载荷为20 N,频率2 Hz,测试的时间为2 h.使用Bruker Contour GT-1型白光干涉仪对钢样在摩擦磨损后的磨痕轮廓进行测量.利用公式通过摩擦磨损试验后钢样的体积损失计算出钢样的磨损量,并对摩擦磨损试验所得到的摩擦系数和磨损量进行对比分析.使用CXS-5TAH-118340扫描电子显微镜对钢样的表面微观形貌进行观察并进行摩擦磨损机理分析.试验结果表明,不同轧制深度部位的微观组织变化会直接影响钢材的耐磨性能.轧制钢板表层组织以铁素体和珠光体为主,1/2处组织以铁素体、珠光体和粒状贝氏体为主;两种钢板表层硬度均高于1/2处样品的硬度,其中厚度为20 mm钢板表层和1/2处硬度分别为490 HV和441 HV;厚度为40 mm钢板表层和1/2处硬度分别为507 HV和451 HV;在2、−5和−20℃条件下,钢板表层的平均摩擦系数都明显高于1/2处的平均摩擦系数,相应的磨痕深度、宽度以及磨损量都较小.另外,低温环境对FH36级船用钢板的耐磨性影响较大,表层及1/2处样品的磨损量均随着温度降低逐渐加大,磨损机理以磨粒磨损为主,以疲劳磨损和黏着磨损为辅.FH36 steel,which is an urgent basic material for large cargo ships,passenger ships and marine equipment that can be used in low-temperature and harsh environment,has attracted extensive attention because of its high strength and high toughness under low-temperature condition.When the FH36 steel is used in the ice environment,it will be inevitably damaged by friction and wear under ice load.In this paper,the friction and wear properties of the FH36 grade marine steel plates with different thickness,which were prepared by controlled rolling and controlled cooling process(Thermo mechanical control process,TMCP),were investigated at 20,−5 and−20℃.The UMT-2 tribolab multifunctional friction and wear tester was used for friction and wear test.A diameter of 8 mm alumina grinding ball was adopted to apply spherical contact friction.The reciprocating friction distance was 5 mm,the load was 20 N,the frequency was 2 Hz,and the test time was 2 hours.Bruker contour GT-1 white light interferometer was used to measure the wear trace profile of steel sample after friction and wear.The wear amount of steel samples was calculated through the volume loss of steel sample after friction and wear test,and the friction coefficient and wear amount obtained from friction and wear test are compared and analyzed.Cxs-5tah-118340 scanning electron microscope was used to observe the surface morphology of the steel sample and analyze the friction and wear mechanism.Test results showed that different microstructures occurred at different rolling depths,which resulted in different wear resistance.The surface microstructure of the rolled steel plates was mainly ferrite and pearlite,which changed to ferrite,pearlite and granular bainite at the center of the steel.For both the rolled steel plates with different thickness,the hardness at the surface was higher than that at the center.The hardnesses at the surface and the center of the steel with a thickness of 20 mm were 490 HV and 441 HV,respectively,while the corresponding values of the stee

关 键 词：FH36 船用钢板 低温 摩擦系数 摩擦磨损 

分 类 号：TH117.1[机械工程—机械设计及理论] TH142[一般工业技术—材料科学与工程]