以35钢为材料,研究了添加直流电场盐浴碳氮共渗技术.该技术在碳氮共渗盐浴中通过在被渗样品间施加合适参数的直流电场予以实现.分析了渗层的显微组织及白亮层厚度,测量了渗层硬度沿层深的分布,并进行了物相分析.实验结果表明:直流电场可以显著提高碳氮共渗速度;在碳氮共渗温度575℃,保温50 min,添加强度为7.5V的直流电场时,白亮层厚度可以达到18.4 μm,约是常规盐浴碳氮共渗获得白亮层厚度的两倍;电场快速盐浴碳氮共渗后试样表面硬度达到730 HV0.01;同时对电场快速盐浴碳氮共渗机理进行了讨论.
参考文献
| [1] | 刘建中;谢里阳;徐灏 .35钢循环应力应变特性的实验研究[J].机械强度,1994,16(04):10-12. |
| [2] | 胡 静 .一种稀土氧化物改性QPQ技术及其在水压传动元件上的应用[P].CN 103014603,2012-04-03. |
| [3] | 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. |
| [4] | 师蔷,王群,曹宏哲.QPQ盐浴复合处理对35钢组织和性能的影响[J].热加工工艺,2008(20):84-85,89. |
| [5] | Li GJ;Peng Q;Wang J;Li C;Wang Y;Gao J;Chen SY;Shen BL .Surface microstructure of 316L austenitic stainless steel by the salt bath nitrocarburizing and post-oxidation process known as QPQ[J].Surface & Coatings Technology,2008(13):2865-2870. |
| [6] | Gui-jiang Li;Qian Peng;Cong Li .Microstructure analysis of 304L austenitic stainless steel by QPQ complex salt bath treatment[J].Materials Characterization,2008(9):1359-1363. |
| [7] | Wei Cai;Fanna Meng;Xinyan Gao;Jing Hu.Effect of QPQ nitriding time on wear and corrosion behavior of 45 carbon steel[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2012:411-414. |
| [8] | Wang, J.;Lin, Y.;Yan, J.;Zen, D.;Zhang, Q.;Huang, R.;Fan, H. .Influence of time on the microstructure of AISI 321 austenitic stainless steel in salt bath nitriding[J].Surface & Coatings Technology,2012(15):3399-3404. |
| [9] | Gui-jiang Li;Jun Wang;Qian Peng;Cong Li;Ying Wang;Bao-luo Shen .Influence of salt bath nitrocarburizing and post-oxidation process on surface microstructure evolution of 17-4PH stainless steel[J].Journal of Materials Processing Technology,2008(1/3):187-192. |
| [10] | 深层QPQ工艺参数对3Cr13钢渗层组织的影响[J].热加工工艺,2012(24):176-179. |
| [11] | 熊光耀;何柏林;周泽杰 .稀土La对5CrMnMo钢QPQ渗层组织和性能的影响[J].材料保护,2008,41(10):95-98. |
| [12] | 熊光耀,赵明娟,赵龙志,周泽杰.稀土对模具钢QPQ渗层组织和性能的影响[J].热加工工艺,2010(04):117-119. |
| [13] | 周正华,谢飞,胡浩波,胡静.直流电场对粉末法渗铝的影响[J].材料热处理学报,2008(06):154-157. |
| [14] | Zhou, ZH;Xie, F;Hu, J .A novel powder aluminizing technology assisted by direct current field at low temperatures[J].Surface & Coatings Technology,2008(1/2):23-27. |
| [15] | Jacquet, P.;Coudert, J.B.;Lourdin, P. .How different steel grades react to a salt bath nitrocarburizing and post-oxidation process: Influence of alloying elements[J].Surface & Coatings Technology,2011(16):4064-4067. |
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