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 Materials Science and Engineering

Harbin Institute of Technology
Harbin Institute of Technology
AECC Harbin Bearing Corporation Ltd
School of Mechatronics Engineering, Harbin Institute of Technology
Beihang University

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

44 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{6971012e687e4e2fb6e496258c91cf48,

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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