离子氮碳氧三元共渗对45钢耐蚀耐磨性能的影响与机理研究
Effect of plasma oxynitrocarburising on corrosion and wear resistance for 45 steel and mechanism analysis
胡静 1梁硕 2卢阳阳 2王海强 2陈立立 3安旭龙 2魏伟2
作者信息
- 1. 江苏省材料表面科学与技术重点实验室(常州大学),江苏常州 213164;常州大学怀德学院,江苏靖江 214500;材料科学与工程国家级实验教学示范中心(常州大学),江苏常州 213164
- 2. 江苏省材料表面科学与技术重点实验室(常州大学),江苏常州 213164;材料科学与工程国家级实验教学示范中心(常州大学),江苏常州 213164
- 3. 山东宇能机械股份有限公司,山东枣庄 277000
- 折叠
摘要
研究选择45钢为原材料,分别采用绿色环保离子氮碳氧三元共渗技术(Plasma oxynitrocarburising,PNCO)和传统淬火-抛光-淬火技术(Quench-polish-quench,QPQ)进行表面改性,并利用SEM,XRD,摩擦磨损试验机,浸泡腐蚀实验对比分析2种方法的改性效果,包括截面显微组织、表面形貌、物相、耐磨性和耐蚀性.结果表明,PNCO处理后,获得了与QPQ处理相同的多层次渗层结构,由表层1～2 μm氧化膜及次表层化合物层和有效硬化层构成,且PNCO处理后表面氧化膜成纳米结构,化合物层比QPQ更加致密.同时,PNCO处理后,磨损率和腐蚀失重率分别为1.39 mg/(N·m)和0.39％,耐磨耐蚀性均略优于QPQ,为研究绿色高效高性能表面改性技术提供了可行的研究方向.
Abstract
To explore an environmental friendly and efficient surface modification technology,PNCO(Plasma oxynitrocarburising)was developed and compared with QPQ(Quench-polish-quench)tech-nology for 45 steel.The cross-sectional microstructures,phase compositions,wear resistance and cor-rosion resistance were tested and analyzed by X-ray diffraction(XRD),scanning electron microscopy(SEM),wear tester and immersion corrosion test.The results show that after PNCO treatment,the same multi-layer structure was obtained as those by QPQ treatment,composed of 1-2 μm oxide layer on the surface and compound layer on the subsurface and effective hardening layer beneath.Mean-while,nanostructured oxide film with denser compound layer was formed by PNCO treatment.Fur-thermore,both wear rate and corrosion weight loss rate are slightly lower than QPQ treatment,with wear rate of 1.39 mg/(N·m)and corrosion weight loss rate of 0.39％by PNCO,thus bringing bet-ter wear resistance and corrosion resistance than those by QPQ treatment.The study provides a feasi-ble research area for environmentally efficient surface modification technology with excellent corrosion and wear resistance.
关键词
离子氮碳氧三元共渗技术/QPQ技术/氧化膜/耐磨性/耐蚀性Key words
plasma oxynitrocarburising/quench-polish-quench/oxide film/wear resistance/corrosion resistance引用本文复制引用
基金项目
国家自然科学基金面上项目(21978025)
江苏高校优势学科建设工程项目(第三期)(PAPD-3)
江苏高校品牌专业建设工程项目(TAPP-2016)
枣庄市自主创新及成果转化资助计划(2021GH10)
出版年
2024
国家科技期刊平台
NSTL
万方数据