冯治国,郑纪豹,刘静

• 1:贵州大学机械工程学院
• 2:贵州师范大学材料与建筑工程学院

摘要(Abstract)：

应用一种新型真空感应渗氮方法对38CrMoAl钢表面制备渗氮层,采用SEM、EDS、自动显微硬度测试、滑动干摩擦试验等测试方法探讨了渗氮温度对38CrMoAl钢渗氮层组织、硬度和耐磨性的影响规律。结果表明:渗氮层表面平整,白亮层、扩散层、基体之间过渡平缓;随着渗氮温度升高,扩散层厚度、渗层硬度、耐磨性均呈现先增加后降低趋势;渗氮温度为560℃时,渗层厚度达到最高值180μm,渗层硬度达到最高值1250 HV0.025;渗氮温度560℃、590℃时的渗层试样在摩擦试验过程中仅有轻微的磨粒磨损,耐磨性能最佳。

关键词(KeyWords)： 38CrMoAl钢;负压;感应渗氮;耐磨性

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51574096)

作者(Author): 冯治国,郑纪豹,刘静

DOI: 10.13289/j.issn.1009-6264.2017-0290

参考文献(References)：

• [1]陆旭锋,潘应君,刘静.脉冲渗氮温度对38Cr Mo Al钢渗氮层耐蚀性的影响[J].金属热处理,2014,39(12):34-37.LU Xu-feng,PAN Ying-jun,LIU Jing.Effect of pulse nitriding temperature on corrosion resistance of nitrided layer on 38Cr Mo Alsteel[J].Heat Treatment of Metals,2014,39(12):34-37.
• [2]杨闯,刘静,马亚芹,等.TC4钛合金真空渗氮组织与性能[J].材料热处理学报,2015,36(7):188-192.YANG Chang,LIU Jing,MA Ya-qin,et al.Microstructure and property of vacuum nitriding on TC4 titanium alloy[J].Transactions of Materials and Heat Treatment,2015,36(7):188-192
• [3]贾晓俊,卢竞,李博,等.38Cr Mo Al钢离子渗氮与激光淬火硬化层倍增技术[J]热处理技术与装备,2015,36(5):3-8.JIA Xiao-jun,LU Jing,LI Bo,et al.Hardening layer multiplication technique of 38Cr Mo Al steel after plasma nitriding and laserquenching process[J].Heat Treatment Technology and Equipment,2015,36(5):3-8.
• [4]Dai M,Li C,Hu J.The enhancement effect and kinetics of rare earth assisted salt bath nitriding[J].Journal of Alloys&Compounds,2016,688:350-356.
• [5]Kusmanov S A,Smirnov A A,Silkin S A,et al.Increasing wear and corrosion resistance of low-alloy by anode plasma electrolytic nitriding[J].Surface&Coatings Technology,2016,307:1350-1356.
• [6]Marin E,Offoiach R,Regis M,et al.Diffusive thermal treatments combined with PVD coatings for tribological protection of titanium alloys[J].Materials and Design,2016,89:314-322.
• [7]Yao C,Lei S,Zhang C K,et al.Plasma nitriding without formation of compound layer for 38Cr Mo Al hydraulic plunger[J].Vacuum,2017,143:98-101.
• [8]Hua X Z,Zhou L,Cui X,et al.The effect of ammonia water on the microstructure and performance of plasma electrolytic saturation nitriding layer of38Cr Mo Al steel[J].Physics Procedia,2013,50:304-314.
• [9]冯治国,郑纪豹,刘静.38Cr Mo Al钢负压感应快速渗氮及性能研究[J].材料热处理学报,2017,38(8):130-135.FENG Zhi-guo,ZHENG Ji-bao,LIU Jing.Research on rapid nitriding of 38Cr Mo Al steel under vacuum induction[J].Transactions of Materials and Heat Treatment,2017,38(8):130-135.

文章评论(Comment)：