Characterization of carburized 14Cr14Co13Mo4 stainless steel by low pressure carburizing

Longcheng Yin; Xinxin Ma; Guangze Tang; Zhongyuan Fu; Shuxin Yang; Tingjian Wang; Liqin Wang; Liuhe Li

doi:10.1016/j.surfcoat.2018.11.090

Characterization of carburized 14Cr14Co13Mo4 stainless steel by low pressure carburizing

Longcheng Yin
, Xinxin Ma^*
, Guangze Tang
, Zhongyuan Fu
, Shuxin Yang
, Tingjian Wang
, Liqin Wang
, Liuhe Li

^*Corresponding author for this work

School of Mechanical Engineering and Automation

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

40 Scopus citations

Abstract

The case-hardened 14Cr14Co13Mo4 martensitic stainless steel is carburized by low-pressure carburizing method. Plenty of second phase particles appear in the case layer. C concentration is measured by Carbon and Sulphur analyzer. Precipitation of second phase induces the improvement of C concentration in case layer. XRD results indicate that the second phase is composed of M₂₃C₆, M₆C, M₇C₃ and intermetallic χ phase. EBSD results show layering distribution of carbides varied with C concentration. Phase diagram of 14Cr14Co13Mo4 steel is calculated by Thermo-Calc software to explain the phase transformation during the carburizing. Low-pressure carburizing process is simulated by DICTRA software to explain C diffusion in 14Cr14Co13Mo4 steel. The simulated C concentration profile agrees well with the experimental measured carbon values, which means that low-pressure carburizing parameters can be optimized by this modeling method.

Original language	English
Pages (from-to)	654-660
Number of pages	7
Journal	Surface and Coatings Technology
Volume	358
DOIs	https://doi.org/10.1016/j.surfcoat.2018.11.090
State	Published - 25 Jan 2019

Keywords

Carbide
Low-pressure carburizing
Simulation
Stainless steel

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10.1016/j.surfcoat.2018.11.090

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@article{223f11a0088240cc9c44740b16addf67,

title = "Characterization of carburized 14Cr14Co13Mo4 stainless steel by low pressure carburizing",

abstract = "The case-hardened 14Cr14Co13Mo4 martensitic stainless steel is carburized by low-pressure carburizing method. Plenty of second phase particles appear in the case layer. C concentration is measured by Carbon and Sulphur analyzer. Precipitation of second phase induces the improvement of C concentration in case layer. XRD results indicate that the second phase is composed of M23C6, M6C, M7C3 and intermetallic χ phase. EBSD results show layering distribution of carbides varied with C concentration. Phase diagram of 14Cr14Co13Mo4 steel is calculated by Thermo-Calc software to explain the phase transformation during the carburizing. Low-pressure carburizing process is simulated by DICTRA software to explain C diffusion in 14Cr14Co13Mo4 steel. The simulated C concentration profile agrees well with the experimental measured carbon values, which means that low-pressure carburizing parameters can be optimized by this modeling method.",

keywords = "Carbide, Low-pressure carburizing, Simulation, Stainless steel",

author = "Longcheng Yin and Xinxin Ma and Guangze Tang and Zhongyuan Fu and Shuxin Yang and Tingjian Wang and Liqin Wang and Liuhe Li",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2019",

month = jan,

day = "25",

doi = "10.1016/j.surfcoat.2018.11.090",

language = "英语",

volume = "358",

pages = "654--660",

journal = "Surface and Coatings Technology",

issn = "0257-8972",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Characterization of carburized 14Cr14Co13Mo4 stainless steel by low pressure carburizing

AU - Yin, Longcheng

AU - Ma, Xinxin

AU - Tang, Guangze

AU - Fu, Zhongyuan

AU - Yang, Shuxin

AU - Wang, Tingjian

AU - Wang, Liqin

AU - Li, Liuhe

PY - 2019/1/25

Y1 - 2019/1/25

N2 - The case-hardened 14Cr14Co13Mo4 martensitic stainless steel is carburized by low-pressure carburizing method. Plenty of second phase particles appear in the case layer. C concentration is measured by Carbon and Sulphur analyzer. Precipitation of second phase induces the improvement of C concentration in case layer. XRD results indicate that the second phase is composed of M23C6, M6C, M7C3 and intermetallic χ phase. EBSD results show layering distribution of carbides varied with C concentration. Phase diagram of 14Cr14Co13Mo4 steel is calculated by Thermo-Calc software to explain the phase transformation during the carburizing. Low-pressure carburizing process is simulated by DICTRA software to explain C diffusion in 14Cr14Co13Mo4 steel. The simulated C concentration profile agrees well with the experimental measured carbon values, which means that low-pressure carburizing parameters can be optimized by this modeling method.

AB - The case-hardened 14Cr14Co13Mo4 martensitic stainless steel is carburized by low-pressure carburizing method. Plenty of second phase particles appear in the case layer. C concentration is measured by Carbon and Sulphur analyzer. Precipitation of second phase induces the improvement of C concentration in case layer. XRD results indicate that the second phase is composed of M23C6, M6C, M7C3 and intermetallic χ phase. EBSD results show layering distribution of carbides varied with C concentration. Phase diagram of 14Cr14Co13Mo4 steel is calculated by Thermo-Calc software to explain the phase transformation during the carburizing. Low-pressure carburizing process is simulated by DICTRA software to explain C diffusion in 14Cr14Co13Mo4 steel. The simulated C concentration profile agrees well with the experimental measured carbon values, which means that low-pressure carburizing parameters can be optimized by this modeling method.

KW - Carbide

KW - Low-pressure carburizing

KW - Simulation

KW - Stainless steel

UR - https://www.scopus.com/pages/publications/85057863910

U2 - 10.1016/j.surfcoat.2018.11.090

DO - 10.1016/j.surfcoat.2018.11.090

M3 - 文章

AN - SCOPUS:85057863910

SN - 0257-8972

VL - 358

SP - 654

EP - 660

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

ER -

Characterization of carburized 14Cr14Co13Mo4 stainless steel by low pressure carburizing

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Keywords

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