周正寿,解后润,魏国方,胡静

• 1:常州大学江苏省表面工程技术重点实验室
• 2:常州市武进广宇热处理有限公司

摘要(Abstract)：

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7.5 V的直流电场时,白亮层厚度可以达到18.4μm,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。

关键词(KeyWords)： 盐浴碳氮共渗;直流电场;显微结构;硬度;机理

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51271039);; 江苏省研究生创新基金(SCZ100431322)

作者(Author): 周正寿,解后润,魏国方,胡静

DOI: 10.13289/j.issn.1009-6264.2015.01.037

参考文献(References)：

• [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(4):10-12.LIU Jian-zhong,XIE Li-yang,XU Hao.Experimental investigation on the cyclic stress-strain characteristics of 0.35%carbon steel[J].Journal of Mechanical Strength,1994,16(4):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:中国,103014603[P].2012-04-03.
• [3]蔡伟,魏国方,孟凡娜,等.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,2013,34(1):153-156.CAI Wei,WEI Guo-fang,MENG Fan-na,et al.Influences of QPQ salt bath treatment time on wear resistance of 304SS[J].Transactions of Materials and Heat Treatment,2013,34(1):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,2008,37(20):84-85.SHI Qiang,WANG Qun,CAO Hong-zhe.Effect of QPQ complex salt bath treatment on microstructure and properties of 35 Steel[J].Hot Working Technology,2008,37(20):84-85.
• [5]Li Gui-jiang,Peng Qian,Wang Jun,et al.Surface microstructure of 316L austenitic stainless steel by the salt bath nitrocarburizing and post-oxidation process known as QPQ[J].Surface&Coatings Technology,2008,202:2865-2870.
• [6]Li Gui-jiang,Peng Qian,Li Cong,et al.Microstructure analysis of 304L austenitic stainless steel by QPQ complex salt bath treatment[J].Materials Characterization,2008,59:1359-1363.
• [7]Cai Wei,Meng Fan-na,Gao Xin-yan,et al.Effect of QPQ nitriding time on wear and corrosion behavior of 45 carbon steel[J].Applied Surface Science,2012,261:411-414.
• [8]Wang Jun,Lin Yuan-hua,Yan Jing,et al.Influence of time on the microstructure of AISI 321 austenitic stainless steel in salt bath nitriding[J].Surface&Coatings Technology,2012,206:3399-3304.
• [9]Li Gui-jiang,Wang Jun,Peng Qian,et al.Influence of salt bath nitrocarburizing and post-oxidation process on surface microstructure evolution of 17-4PH stainlesssteel[J].Journal of Materials Processing Technology,2008,207:187-192.
• [10]蔡文雯,罗德福.深层QPQ工艺参数对3Cr13钢渗层组织的影响[J].热加工工艺,2012,4(24):176-179.CAI Wen-wen,LUO De-fu.Effect of Depth QPQ Process on Microstructure of 3Cr13 Steel[J].Hot Working Technology,2012,4(24):176-179.
• [11]熊光耀,何柏林,周泽杰.稀土La对5Cr Mn Mo钢QPQ渗层组织和性能的影响[J].材料保护,2008,41(10):95-98.XIONG Guang-yao,HE Bo-lin,ZHOU Ze-jie.Influence of RE La on microstructure and properties of 5Cr Mn Mo steel by QPQ salt-bath treatment[J].Material Protection,2008,41(10):95-98.
• [12]熊光耀,赵明娟,赵龙志,等.稀土对模具钢QPQ渗层组织和性能的影响[J].热加工工艺,2010,39(4):117-119.XIONG Guang-yao,ZHAO Ming-juan,ZHAO Long-zhi,et al.Influence of RE on microstructure and properties of die steel by QPQ salt-bath treatment[J].Hot Working Technology,2010,39(4):117-119.
• [13]周正华,谢飞,胡浩波,等.直流电场对粉末法渗铝的影响[J].材料热处理学报,2008,29(6):154-157.ZHOU Zheng-hua,XIE Fei,HU Hao-bo,et al.Influence of direct current field on powder aluminizing[J].Transactions of Materials and Heat Treatment,2008,29(6):154-157.
• [14]Zhou Zheng-hua,Xie Fei,Hu Jing.A novel powder aluminizing technology assisted by direct current field at low temperatures[J].Surface&Coatings Technology,2008(203):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,2011,205:4064-4067.

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