Performance Enhancement in Borocarburized Low-Carbon Steel by Double Glow Plasma Surface Alloying

Performance Enhancement in Borocarburized Low-Carbon Steel by Double Glow Plasma Surface Alloying

In this paper, the performance of low-carbon steel is enhanced after introducing a borocarburized diffusion layer via double glow plasma surface alloying technology. Due to the boron-carbon gradient structure of low-carbon steel, the protective coating exhibits an excellent wear and corrosion resist...

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Bibliographic Details
Main Authors: Zheng Ding, Qiang Miao, Wenping Liang, Zhengang Yang, Shiwei Zuo
Format: Article
Language:English
Published: MDPI AG 2020-12-01
Series:Coatings
Subjects:
borocarburizing
double glow
gradient structure
Fe<sub>2</sub>B
corrosion resistance
Online Access:https://www.mdpi.com/2079-6412/10/12/1205
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spelling doaj-fd5b18b85778432ab29e3a29ab19dd582020-12-11T00:04:36ZengMDPI AGCoatings2079-64122020-12-01101205120510.3390/coatings10121205Performance Enhancement in Borocarburized Low-Carbon Steel by Double Glow Plasma Surface AlloyingZheng Ding0Qiang Miao1Wenping Liang2Zhengang Yang3Shiwei Zuo4College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210000, ChinaCollege of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210000, ChinaCollege of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210000, ChinaCollege of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210000, ChinaCollege of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210000, ChinaIn this paper, the performance of low-carbon steel is enhanced after introducing a borocarburized diffusion layer via double glow plasma surface alloying technology. Due to the boron-carbon gradient structure of low-carbon steel, the protective coating exhibits an excellent wear and corrosion resistance. Interestingly, the borocarburized layer consists of a 64 μm carburized layer and a 27 μm boride layer, which plays an effective role in enhancing the microhardness of borocarburized low-carbon steel, exhibiting a 1440 Vickers hardness increase in the surface microhardness of low-carbon steel. The potentiodynamic polarization measurement and impedance measurement results indicate that the boride protective film can effectively prevent aggressive chloride ions from invading the substrate, which indicates an excellent property of corrosion resistance. This systematic study paves a promising way for the future application of hard coatings in severe environments.https://www.mdpi.com/2079-6412/10/12/1205borocarburizingdouble glowgradient structureFe<sub>2</sub>Bcorrosion resistance
collection DOAJ
language English
format Article
sources DOAJ
author Zheng Ding
Qiang Miao
Wenping Liang
Zhengang Yang
Shiwei Zuo
spellingShingle Zheng Ding
Qiang Miao
Wenping Liang
Zhengang Yang
Shiwei Zuo
Performance Enhancement in Borocarburized Low-Carbon Steel by Double Glow Plasma Surface Alloying
Coatings
borocarburizing
double glow
gradient structure
Fe<sub>2</sub>B
corrosion resistance
author_facet Zheng Ding
Qiang Miao
Wenping Liang
Zhengang Yang
Shiwei Zuo
author_sort Zheng Ding
title Performance Enhancement in Borocarburized Low-Carbon Steel by Double Glow Plasma Surface Alloying
title_short Performance Enhancement in Borocarburized Low-Carbon Steel by Double Glow Plasma Surface Alloying
title_full Performance Enhancement in Borocarburized Low-Carbon Steel by Double Glow Plasma Surface Alloying
title_fullStr Performance Enhancement in Borocarburized Low-Carbon Steel by Double Glow Plasma Surface Alloying
title_full_unstemmed Performance Enhancement in Borocarburized Low-Carbon Steel by Double Glow Plasma Surface Alloying
title_sort performance enhancement in borocarburized low-carbon steel by double glow plasma surface alloying
publisher MDPI AG
series Coatings
issn 2079-6412
publishDate 2020-12-01
description In this paper, the performance of low-carbon steel is enhanced after introducing a borocarburized diffusion layer via double glow plasma surface alloying technology. Due to the boron-carbon gradient structure of low-carbon steel, the protective coating exhibits an excellent wear and corrosion resistance. Interestingly, the borocarburized layer consists of a 64 μm carburized layer and a 27 μm boride layer, which plays an effective role in enhancing the microhardness of borocarburized low-carbon steel, exhibiting a 1440 Vickers hardness increase in the surface microhardness of low-carbon steel. The potentiodynamic polarization measurement and impedance measurement results indicate that the boride protective film can effectively prevent aggressive chloride ions from invading the substrate, which indicates an excellent property of corrosion resistance. This systematic study paves a promising way for the future application of hard coatings in severe environments.
topic borocarburizing
double glow
gradient structure
Fe<sub>2</sub>B
corrosion resistance
url https://www.mdpi.com/2079-6412/10/12/1205
work_keys_str_mv AT zhengding performanceenhancementinborocarburizedlowcarbonsteelbydoubleglowplasmasurfacealloying
AT qiangmiao performanceenhancementinborocarburizedlowcarbonsteelbydoubleglowplasmasurfacealloying
AT wenpingliang performanceenhancementinborocarburizedlowcarbonsteelbydoubleglowplasmasurfacealloying
AT zhengangyang performanceenhancementinborocarburizedlowcarbonsteelbydoubleglowplasmasurfacealloying
AT shiweizuo performanceenhancementinborocarburizedlowcarbonsteelbydoubleglowplasmasurfacealloying
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