The effect of ultrasonic nanocrystal surface modification on low temperature nitriding of ultra-high strength steel

Weidong Zhao; Daoxin Liu; Haifeng Qin; Xiaohua Zhang; Hao Zhang; Ruixia Zhang; Zhencheng Ren; Chi Ma; Auezhan Amanov; Young Sik Pyun; G. L. Doll; Y. Dong; C. Ye

doi:10.1016/j.surfcoat.2019.07.006

The effect of ultrasonic nanocrystal surface modification on low temperature nitriding of ultra-high strength steel

Weidong Zhao, Daoxin Liu, Haifeng Qin, Xiaohua Zhang, Hao Zhang, Ruixia Zhang, Zhencheng Ren, Chi Ma, Auezhan Amanov, Young Sik Pyun, G. L. Doll, Y. Dong, C. Ye

Research output: Contribution to journal › Article › peer-review

47 Scopus citations

Abstract

In this research, a surface plastic deformation layer was induced on 300M ultra-high strength steel using ultrasonic nanocrystal surface modification (UNSM). The UNSM-treated and control specimens were then nitrided at 450 °C for 6 h. After gas nitriding, the microstructure, corrosion and wear resistance of 300M steel with and without UNSM pre-treatment were investigated. After nitriding, the UNSM-treated specimens generated a dense surface nitride layer that was thicker than that of the control specimens. The high defect density and refined lath martensite induced by UNSM were found to accelerate the nitrogen diffusion and efficiency. X-ray diffraction patterns revealed that α-Fe phase occupied the largest proportion in the nitriding layer of specimens without UNSM pre-treatment. However due to the higher nitriding efficiency, the main phase of UNSM-treated specimens after nitriding was found to be ε-Fe_2-3N. Compared with the specimens without pre-treatment, UNSM-treated specimens exhibited higher surface hardness as well as higher corrosion and wear resistance after nitriding.

Original language	English
Pages (from-to)	205-214
Number of pages	10
Journal	Surface and Coatings Technology
Volume	375
DOIs	https://doi.org/10.1016/j.surfcoat.2019.07.006
State	Published - 15 Oct 2019

Keywords

300M ultra-high strength steel
Corrosion resistance
Gas nitriding
Surface severe plastic deformation
Ultrasonic nanocrystal surface modification
Wear resistance

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10.1016/j.surfcoat.2019.07.006

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title = "The effect of ultrasonic nanocrystal surface modification on low temperature nitriding of ultra-high strength steel",

abstract = "In this research, a surface plastic deformation layer was induced on 300M ultra-high strength steel using ultrasonic nanocrystal surface modification (UNSM). The UNSM-treated and control specimens were then nitrided at 450 °C for 6 h. After gas nitriding, the microstructure, corrosion and wear resistance of 300M steel with and without UNSM pre-treatment were investigated. After nitriding, the UNSM-treated specimens generated a dense surface nitride layer that was thicker than that of the control specimens. The high defect density and refined lath martensite induced by UNSM were found to accelerate the nitrogen diffusion and efficiency. X-ray diffraction patterns revealed that α-Fe phase occupied the largest proportion in the nitriding layer of specimens without UNSM pre-treatment. However due to the higher nitriding efficiency, the main phase of UNSM-treated specimens after nitriding was found to be ε-Fe2-3N. Compared with the specimens without pre-treatment, UNSM-treated specimens exhibited higher surface hardness as well as higher corrosion and wear resistance after nitriding.",

keywords = "300M ultra-high strength steel, Corrosion resistance, Gas nitriding, Surface severe plastic deformation, Ultrasonic nanocrystal surface modification, Wear resistance",

author = "Weidong Zhao and Daoxin Liu and Haifeng Qin and Xiaohua Zhang and Hao Zhang and Ruixia Zhang and Zhencheng Ren and Chi Ma and Auezhan Amanov and Pyun, {Young Sik} and Doll, {G. L.} and Y. Dong and C. Ye",

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T1 - The effect of ultrasonic nanocrystal surface modification on low temperature nitriding of ultra-high strength steel

AU - Zhao, Weidong

AU - Liu, Daoxin

AU - Qin, Haifeng

AU - Zhang, Xiaohua

AU - Zhang, Hao

AU - Zhang, Ruixia

AU - Ren, Zhencheng

AU - Ma, Chi

AU - Amanov, Auezhan

AU - Pyun, Young Sik

AU - Doll, G. L.

AU - Dong, Y.

AU - Ye, C.

PY - 2019/10/15

Y1 - 2019/10/15

N2 - In this research, a surface plastic deformation layer was induced on 300M ultra-high strength steel using ultrasonic nanocrystal surface modification (UNSM). The UNSM-treated and control specimens were then nitrided at 450 °C for 6 h. After gas nitriding, the microstructure, corrosion and wear resistance of 300M steel with and without UNSM pre-treatment were investigated. After nitriding, the UNSM-treated specimens generated a dense surface nitride layer that was thicker than that of the control specimens. The high defect density and refined lath martensite induced by UNSM were found to accelerate the nitrogen diffusion and efficiency. X-ray diffraction patterns revealed that α-Fe phase occupied the largest proportion in the nitriding layer of specimens without UNSM pre-treatment. However due to the higher nitriding efficiency, the main phase of UNSM-treated specimens after nitriding was found to be ε-Fe2-3N. Compared with the specimens without pre-treatment, UNSM-treated specimens exhibited higher surface hardness as well as higher corrosion and wear resistance after nitriding.

AB - In this research, a surface plastic deformation layer was induced on 300M ultra-high strength steel using ultrasonic nanocrystal surface modification (UNSM). The UNSM-treated and control specimens were then nitrided at 450 °C for 6 h. After gas nitriding, the microstructure, corrosion and wear resistance of 300M steel with and without UNSM pre-treatment were investigated. After nitriding, the UNSM-treated specimens generated a dense surface nitride layer that was thicker than that of the control specimens. The high defect density and refined lath martensite induced by UNSM were found to accelerate the nitrogen diffusion and efficiency. X-ray diffraction patterns revealed that α-Fe phase occupied the largest proportion in the nitriding layer of specimens without UNSM pre-treatment. However due to the higher nitriding efficiency, the main phase of UNSM-treated specimens after nitriding was found to be ε-Fe2-3N. Compared with the specimens without pre-treatment, UNSM-treated specimens exhibited higher surface hardness as well as higher corrosion and wear resistance after nitriding.

KW - 300M ultra-high strength steel

KW - Corrosion resistance

KW - Gas nitriding

KW - Surface severe plastic deformation

KW - Ultrasonic nanocrystal surface modification

KW - Wear resistance

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DO - 10.1016/j.surfcoat.2019.07.006

M3 - 文章

AN - SCOPUS:85069557893

SN - 0257-8972

VL - 375

SP - 205

EP - 214

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

ER -

The effect of ultrasonic nanocrystal surface modification on low temperature nitriding of ultra-high strength steel

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