武计强,李虎,李景才,胡静

• 1:常州大学江苏省表面工程技术重点实验室
• 2:常州赛斐斯新材料科技有限公司

摘要(Abstract)：

采用普通空气对离子渗氮的42CrMo钢进行离子后氧化处理。利用光学显微镜、扫描电镜(SEM)、X射线衍射仪、电化学性能分析测试仪对复合渗层的显微组织、厚度、物相、表面形貌及耐蚀性进行了测试和分析。研究结果表明,普通空气可用作42CrMo钢离子后氧化处理的气源;通过离子后氧化处理,在经离子渗氮的42CrMo钢氮化层上形成一层厚度为1~2μm、由Fe2O3和Fe3O4组成的氧化层;随氧化时间延长或温度增高,氮化层化合物相分解,化合物层厚度逐渐减小,后氧化时间和温度对氧化层的Fe2O3和Fe3O4比例起决定作用。同时,离子后氧化能显著改善渗氮42CrMo钢的耐蚀性,其中工艺参数为400℃、氧化60 min获得最佳耐蚀性。

关键词(KeyWords)： 42CrMo钢;离子后氧化;显微组织;耐蚀性

Abstract:

Keywords:

基金项目(Foundation): 江苏高校优势学科建设工程项目;; 江苏省研究生创新基金(SCZ100431322)

作者(Author): 武计强,李虎,李景才,胡静

DOI: 10.13289/j.issn.1009-6264.2015.03.015

参考文献(References)：

• [1]LI Jing-cai,YANG Xing-mei,WANG Shu-kai,et al.A rapid D.C.plasma nitriding technology catalyzed by pre-oxidation for AISI4140 steel[J].Materials Letters,2014,116:199-202.
• [2]奚运涛,刘道新,韩栋,等.离子渗氮AISI 420马氏体不锈钢耐蚀行为研究[J].材料热处理学报,2007,28(5):110-114.XI Yun-tao,LIU Dao-xin,HAN Dong,et al.Investigation on corrosion behavior of plasma nitrided AISI 420 martensitic stainless steel[J].Transactions of Materials and Heat Treatment,2007,28(5):110-114.
• [3]Steffen Hoppe.Fundamentals and applications of the combination of plasma nitrocarburizing and oxidizing[J].Surface and Coatings Technology,1998,98(1/3):1199-1204.
• [4]Akgun Alsaran,Hikmet Altun,Mehmet Karakan,et al.Effect of post-oxidizing on tribological and corrosion behaviour of plasma nitrided AISI 5140steel[J].Surface and Coatings Technology,2004,176(3):344-348.
• [5]Eun-Kab Jeon,Ik Min Park,Insup Lee,et al.Plasma post-oxidation of nitrocarburized SUM 24L steel[J].Materials Science and Engineering A,2007,449-451:868-871.
• [6]Abedi,Salehi H R,Yazdkhasti M,et al.Effect of high temperature post-oxidizing on tribological and corrosion behavior of plasma nitrided AISI 316austenitic stainless steel[J].Vacuum,2010,85(3):443-447.
• [7]Kou Hyun Lee,Ki Suk Nam,Pyung Woo Shin,et al.Effect of post-oxidizing time on corrosion properties of plasma nitrocarburized AISI 1020 steel[J].Materials Letters,2003,57(13/14):2060-2065.
• [8]Karimzadeh N,Moghaddam E G,Mirjani M,et al.The effect of gas mixture of post-oxidation on structure and corrosionbehavior of plasma nitrided AISI316 stainless steel[J].Applied Surface Science,2013,283:584-589.
• [9]周潘兵,周浪,陈忠博.高速钢氧氮共渗与渗氮后氧化的组织与性能比较[J].金属热处理,2007,32(5):28-30.ZHOU Pan-bing,ZHOU Lang,CHEN Zhong-bo.Comparison of microstructures and properties between oxy-nitrided and nitrided with post-oxidized high speed steel[J].Heat Treatment of Metals,2007,32(5):28-30.
• [10]Mandkarian N,Mahboubi F.Effect of gas mixture of plasma post-oxidation on corrosion properties of plasma nitrocarburised AISI 4130 steel[J].Vacuum,2009,83(7):1036-1042.
• [11]Insup Lee.Post-oxidizing treatments of the compound layer on the AISI 4135 steel produced by plasma nitrocarburizing[J].Surface and Coatings Technology,2004,188-189:669-674.
• [12]Yasavol N,Mahboubi F.The effect of duplex plasma nitriding-oxidizing treatment on the corrosionresistance of AISI 4130 steel[J].Materials and Design,2012,38:59-63.
• [13]Borgioli F,Galvanetto E,Fossati A,et al.Glow-discharge nitriding and post-oxidising treatments of AISI H11 steel[J].Surface and Coatings Technology,2002,162(1):61-66.
• [14]石杰,王德仁,何业东,等.温度对氢气还原热轧碳钢表面氧化皮的影响[J].材料热处理学报,2008,29(4):166-169.SHI Jie,WANG De-ren,HE Ye-dong,et al.Effect of temperature on hydrogen gas reduction of oxide scale on carbon steel[J].Transactions of Materials and Heat Treatment,2008,29(4):166-169.

文章评论(Comment)：