在400℃、8 h、不同气压(80 ～400 Pa)条件下对304奥氏体不锈钢进行离子渗氮处理.采用扫描电镜(SEM) 、X射线衍射仪、显微硬度计及万能摩擦试验机对表面改性后的304奥氏体不锈钢渗层组织、相结构、渗层硬度以及耐磨性进行了测试和分析.结果表明,400℃离子渗氮处理后304奥氏体不锈钢形成了明显的白亮层,即单相S相层;低压对304奥氏体不锈钢离子氮化具有良好的催渗效果,即渗层厚度随气压的减小而增加,在100 Pa条件下,渗层厚度达到最大值51.7 μm;渗氮后试样表面硬度达到最大值1100 HV0.01;低温低压离子渗氮能够提高304奥氏体不锈钢耐磨性,80 Pa和100 Pa是提高304奥氏体不锈钢耐磨性的最佳气压.
参考文献
| [1] | 吴雪敏 .不锈钢空心阴极辅助离子渗氮工艺研究[D].大连海事大学,2009. |
| [2] | 王礼银 .奥氏体不锈钢活性屏离子渗氮的研究[D].青岛科技大学,2007. |
| [3] | Abedi, H.R.;Salehi, M.;Yazdkhasti, M.;Hemmasian-E, A. .Effect of high temperature post-oxidizing on tribological and corrosion behavior of plasma nitrided AISI 316 austenitic stainless steel[J].Vacuum: Technology Applications & Ion Physics: The International Journal & Abstracting Service for Vacuum Science & Technology,2010(3):443-447. |
| [4] | Rahman M;Haider J;Hashmi MSJ .Low temperature plasma nitriding of 316 stainless steel by a saddle field fast atom beam source[J].Surface & Coatings Technology,2005(5/6):1645-1651. |
| [5] | De Las Heras E;Egidi D A;Corengia P .Duplex surface treatment of an AISI 316L stainless steel; microstructure and tribological behavior[J].Surface and Coatings Technology,2008,202(13):2945-2954. |
| [6] | 王亮,许晓磊,许彬,于志伟,黑祖昆.奥氏体不锈钢低温渗氮层的组织与耐磨性[J].摩擦学学报,2000(01):67-69. |
| [7] | 张翔宇,唐宾,范爱兰,朱瑞华,王鹤峰.AISI304不锈钢表面渗Cu层对其摩擦学行为的影响[J].材料热处理学报,2011(09):136-140. |
| [8] | Jun Wang;Ji Xiong;Qian Peng .Effects of DC plasma nitriding parameters on microstructure and properties of 304L stainless steel[J].Materials Characterization,2009(3):197-203. |
| [9] | Nosei L;Farina S;Avalos M;Nachez L;Gomez BJ;Feugeas J .Corrosion behavior of ion nitrided AISI 316L stainless steel[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2008(6):1044-1050. |
| [10] | E. Menthe;A. Bulak;J. Olfe;A. Zimmermann;K. -T. Rie .Improvement of the mechanical properties of austenitic stainless steel after plasma nitriding[J].Surface & Coatings Technology,2000(0):259-263. |
| [11] | 蔡伟,魏国方,孟凡娜,胡静.QPQ盐浴复合处理时间对304不锈钢耐磨性的影响[J].材料热处理学报,2013(01):153-156. |
| [12] | Anders A .Plasma and ion sources in large area coating: A review[J].Surface & Coatings Technology,2005(5/6):1893-1906. |
| [13] | Annemie Bogaerts;Erik Neyts;Rennaat Gijbels et al.Gas discharge plasmas and their applications[J].Spectrochimica Acta Part B:Atomic Spectroscopy,2002,57(04):609-658. |
| [14] | Czerwiec T;Michel H;Bergmann E .Low pressure,high density plsama nitriding:mechanisms,technology and results[J].Surface and Coatings Technology,1998,108/109:182-190. |
| [15] | 钟厉.阴极电压和供氮方式对纯氮离子渗氮的影响[J].金属热处理,2007(03):25-29. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%