以渗铝为主的Q195钢交流电场增强粉末法铝铬共渗特性

doi:10.13251/j.issn.0254-6051.2021.08.041

金属热处理 ›› 2021, Vol. 46 ›› Issue (8): 214-218.DOI: 10.13251/j.issn.0254-6051.2021.08.041

以渗铝为主的Q195钢交流电场增强粉末法铝铬共渗特性

陈超¹, 谢飞^1,2, 潘建伟³

1.常州大学材料科学与工程学院, 江苏常州 213164;
2.常州大学江苏省材料表面技术重点实验室, 江苏常州 213164;
3.常州大学怀德学院, 江苏靖江 214500

收稿日期:2021-04-01 出版日期:2021-08-25 发布日期:2021-12-09
通讯作者: 谢飞,教授,博士,E-mail:xiefei@cczu.edu.cn
作者简介:陈超(1995—),男,硕士研究生,主要研究方向为材料表面工程,E-mail:459069735@qq.com。
基金资助:
国家自然科学基金(51171032)

Characteristics of alternating current field enhanced aluminizing-based pack chrom-aluminizing on Q195 steel

Chen Chao¹, Xie Fei^1,2, Pan Jianwei³

1. School of Materials Science and Engineering, Changzhou University, Changzhou Jiangsu 213164, China;
2. Key Laboratory of Materials Surface Engineering of Jiangsu Province, Changzhou University, Changzhou Jiangsu 213164, China;
3. Huaide College, Changzhou University, Jingjiang Jiangsu 214500, China

Received:2021-04-01 Online:2021-08-25 Published:2021-12-09

摘要/Abstract

摘要： 在渗铝剂中加入铬粉,对Q195钢在800 ℃进行以渗铝为主的交流电场增强及常规粉末法铝铬共渗。用金相显微观测、X射线衍射分析、显微硬度测试等分析渗层组织、相、厚度及显微硬度沿渗层深度方向的分布。结果表明,相较单一渗铝,添加少量铬粉对常规铝铬共渗层组织和厚度影响不大,但次表层硬度提高;交流电场对单一渗铝和铝铬共渗均有促渗作用,较单一渗铝,添加微量铬粉进一步加快渗速,但对次表层硬度影响不大,随渗剂中铬粉含量增加,渗层厚度先增后减,添加0.1%铬粉时促渗效果最为显著,所得渗层厚约123 μm,而交流电场单一渗铝层厚约50 μm,常规单一渗铝层厚仅约18 μm。

关键词: 粉末法铝铬共渗, 交流电场, Q195钢

Abstract: Alternating current field enhanced pack chrom-aluminizing (ACFPCA) and the conventional pack chrom-aluminizing (CPCA) at 800 ℃ on the surface of the Q195 steel specimens were carried out, respectively, in which the inward diffusion of aluminium dominated, and then adding chromium powder to the aluminizing agent. The layer structure, phase, thickness and distribution of microhardness along the depth direction of the layer were studied by means of metallographic microscopic observation, X-ray diffraction analysis and micro-Vickers hardness test. The results show that compared with single aluminizing, adding a small amount of chromium powder has little effect on structure and thickness of the CPCA layer except increasing the hardness of the subsurface layer. Alternating current field (ACF) promotes both aluminizing and chrom-aluminizing. Compared with single ACF enhanced pack aluminizing (ACFPA), the inward diffusion of Al is further accelerated by adding a small amount of chromium powder to the aluminizing agent in ACFPCA. However, adding a small amount of chromium powder has little effect on increasing the hardness of the subsurface. With the increase of chromium powder in the pack agent, the ACFPCA layer's thickness increases first and then decreases. When 0.1% chromium powder is added, the promoting effect is the most significant and the obtained layer is about 123 μm thick, while the thickness of the ACFPA layer is about 50 μm and that of CPA layer is only about 18 μm.

Key words: pack chrom-aluminizing, alternating current field, Q195 steel

中图分类号:

TG156.8

陈超, 谢飞, 潘建伟. 以渗铝为主的Q195钢交流电场增强粉末法铝铬共渗特性[J]. 金属热处理, 2021, 46(8): 214-218.

Chen Chao, Xie Fei, Pan Jianwei. Characteristics of alternating current field enhanced aluminizing-based pack chrom-aluminizing on Q195 steel[J]. Heat Treatment of Metals, 2021, 46(8): 214-218.

参考文献

[1]齐宝森, 王忠诚, 李玉婕. 化学热处理技术及应用实例[M]. 北京: 化学工业出版社, 2015.
[2]Xie Fei, Pan Jianwei. Novel pack cementations: Direct current field assisted pack cementations[J]. International Heat Treatment and Surface Engineering, 2012, 6(2): 80-87.
[3]李合琴, 何晓雄, 刘永炘. 室温冷变形对膏剂硼锆共渗层组织及性能的影响[J]. 金属热处理, 1999(5): 18-19.
Li Heqin, He Xiaoxiong, Liu Yongxin. Effect of room temperature compressible deformation on structure and properties of zirconoboriding layer[J]. Heat Treatment of Metals, 1999(5): 18-19.
[4]纪文文, 宋月鹏, 陈克丰, 等. 稀土元素对40Cr钢渗铝层组织性能的影响研究[J]. 稀土, 2009, 30(6): 55-59.
Ji Wenwen, Song Yuepeng, Chen Kefeng, et al. Effect of RE elements on the microstructure and properties of aluminizing layer of 40Cr steel[J]. Chinese Rare Earths, 2009, 30(6): 55-59.
[5]陈鹭滨, 孙希泰. 机械能助渗的基本规律及其发展前景[J]. 金属热处理, 2004, 29(2): 25-28.
Chen Lubin, Sun Xitai. General rule and promising future of mechanical energy aided thermal diffusing process[J]. Heat Treatment of Metals, 2004, 29(2): 25-28.
[6]Xie Fei, Sun Li, Pan Jianwei. Characteristics and mechanisms of accelerating pack boriding by direct current field at low and moderate temperatures[J]. Surface and Coatings Technology, 2012, 206(11/12): 2839-2844.
[7]Xie Fei, Sun Li, Cheng Jian. Alternating current field assisted pack boriding to Fe_2B coating[J]. Surface Engineering, 2013, 29(3): 240-243.
[8]Xie Fei, Xu Shaoqiang, Pan Jianwei. Novel pack cementations: Alternating current field assisted pack cementations[J]. Materials Performance and Characterization, 2018, 7(5): 1164-1177.
[9]蔡守禄, 谢飞, 潘建伟, 等. 以渗硼为主的交流电场增强粉末法硼铝共渗工艺优化研究[J]. 金属热处理, 2020, 45(7): 194-197.
Cai Shoulu, Xie Fei, Pan Jianwei, et al. Optimization of alternating current field enhanced pack boron-aluminizing boriding-based[J]. Heat Treatment of Metals, 2020, 45(7): 194-197.
[10]程伟, 谢飞. 铬对交流电场增强粉末法渗硼层组织和性能的影响[J]. 金属热处理, 2020, 45(2): 235-238.
Cheng Wei, Xie Fei. Effect of chromium on microstructure and properties of alternating current field enhanced pack boriding layer[J]. Heat Treatment of Metals, 2020, 45(2): 235-238.
[11]黄智超, 谢飞, 陆程, 等. 铝对45钢交流电场增强中温粉末法硼铝共渗的影响[J]. 金属热处理, 2018, 43(6): 138-141.
Huang Zhichao, Xie Fei, Lu Cheng, et al. Influence of Al on alternating current field enhanced pack boron-aluminizing at a mediam temperature for 45 carbon steel[J]. Heat Treatment of Metals, 2018, 43(6): 138-141.
[12]第一机械工业部武汉材料保护研究所. 钢铁化学热处理金相图谱[M]. 北京: 机械工业出版社, 1980.
[13]闫梦龙, 谢飞, 潘建伟. 交流电场对45钢粉末粉末法渗铝的影响[J]. 材料热处理学报, 2015, 36(2): 203-208.
Yan Menglong, Xie Fei, Pan Jianwei. Effects of alternating current field on pack aluminizing of 45 steel[J]. Transactions of Materials and Heat Treatment, 2015, 36(2): 203-208.
[14]Xie Fei, Cheng Jian, Wang Shuo. Effects and mechanisms of an alternating current field on pack boriding[J]. Vacuum, 2018, 148: 41-47.
[15]谢飞, 程健, 潘建伟. 电场频率对45钢交流电场增强粉末法渗硼的影响[J]. 中国表面工程, 2018, 31(1): 39-44.
Xie Fei, Cheng Jian, Pan Jianwei. Influences of current field frequency on alternating current field enhanced pack boriding on 45 steel[J]. China Surface Engineering, 2018, 31(1): 39-44.
[16]何祖新, 苏旭平, 彭浩平, 等. 机械能助Al-Zn-Cr共渗工艺及渗层组织[J]. 中国表面工程, 2016, 29(6): 44-51.
He Zuxin, Su Xuping, Peng Haoping, et al. AI-Zn-Cr diffusion process aided by mechanical energy and microstructure of alloying layer[J]. China Surface Engineering, 2016, 29(6): 44-51.

以渗铝为主的Q195钢交流电场增强粉末法铝铬共渗特性

Characteristics of alternating current field enhanced aluminizing-based pack chrom-aluminizing on Q195 steel

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[1]	蔡守禄, 谢飞, 潘建伟, 邹伟东. 以渗硼为主的交流电场增强粉末法硼铝共渗工艺优化[J]. 金属热处理, 2020, 45(7): 194-197.
[2]	程伟, 谢飞. 铬对交流电场增强粉末法渗硼层组织和性能的影响[J]. 金属热处理, 2020, 45(2): 235-238.