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The influence of different heat treatment cycles on controlled surface graphitization in CK45 steel

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Title: The influence of different heat treatment cycles on controlled surface graphitization in CK45 steel
Authors: Hamedi, Y.1, Kiani-Rashid, A.R.2 kianirashid@gmail.com, Shishegar, H.R.1, Azaat-Pour, H.R.2
Source: Journal of Alloys & Compounds. Mar2010, Vol. 492 Issue 1/2, p739-744. 6p.
Subjects: Heat treatment of steel, Microstructure, Graphitization, Steel metallurgy, Surfaces (Technology), Mechanical wear, Diffusion, Phase transitions
Abstract: Abstract: Controlled graphitization has become known as a practical method for improvement of wear resistance and machining properties in steels. In this paper, the effect of heat treatment on microstructure of CK45 steel has been investigated. Austenitising was carried out at 920°C for 5h. Besides, isothermal transformation was conducted at 750°C in the time range of 1–20h. In this work, full potential carbon resource was tried to be used around samples as a factor to prevent the burning of the limited carbon in steel and also to increase the percentage of sample surface carbon in order to improve wear capability and machining. The microstructure of the steel considerably changes by this heat treatment process which exhibits the effects of temperature, appropriate austenitising duration and isothermal transformation. Conducted experiments show a suitable distribution of semi-spherical graphite particles especially on the surface of the steel. Also, analyses demonstrate that the amount of formed graphite in the austenitising temperature 920°C is more than graphite in single heat treatment temperature of 750°C. [Copyright &y& Elsevier]
Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 48256710
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: The influence of different heat treatment cycles on controlled surface graphitization in CK45 steel
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  Data: <searchLink fieldCode="AR" term="%22Hamedi%2C+Y%2E%22">Hamedi, Y.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kiani-Rashid%2C+A%2ER%2E%22">Kiani-Rashid, A.R.</searchLink><relatesTo>2</relatesTo><i> kianirashid@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Shishegar%2C+H%2ER%2E%22">Shishegar, H.R.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Azaat-Pour%2C+H%2ER%2E%22">Azaat-Pour, H.R.</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Alloys+%26+Compounds%22">Journal of Alloys & Compounds</searchLink>. Mar2010, Vol. 492 Issue 1/2, p739-744. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Heat+treatment+of+steel%22">Heat treatment of steel</searchLink><br /><searchLink fieldCode="DE" term="%22Microstructure%22">Microstructure</searchLink><br /><searchLink fieldCode="DE" term="%22Graphitization%22">Graphitization</searchLink><br /><searchLink fieldCode="DE" term="%22Steel+metallurgy%22">Steel metallurgy</searchLink><br /><searchLink fieldCode="DE" term="%22Surfaces+%28Technology%29%22">Surfaces (Technology)</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+wear%22">Mechanical wear</searchLink><br /><searchLink fieldCode="DE" term="%22Diffusion%22">Diffusion</searchLink><br /><searchLink fieldCode="DE" term="%22Phase+transitions%22">Phase transitions</searchLink>
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  Data: Abstract: Controlled graphitization has become known as a practical method for improvement of wear resistance and machining properties in steels. In this paper, the effect of heat treatment on microstructure of CK45 steel has been investigated. Austenitising was carried out at 920°C for 5h. Besides, isothermal transformation was conducted at 750°C in the time range of 1–20h. In this work, full potential carbon resource was tried to be used around samples as a factor to prevent the burning of the limited carbon in steel and also to increase the percentage of sample surface carbon in order to improve wear capability and machining. The microstructure of the steel considerably changes by this heat treatment process which exhibits the effects of temperature, appropriate austenitising duration and isothermal transformation. Conducted experiments show a suitable distribution of semi-spherical graphite particles especially on the surface of the steel. Also, analyses demonstrate that the amount of formed graphite in the austenitising temperature 920°C is more than graphite in single heat treatment temperature of 750°C. [Copyright &y& Elsevier]
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  Data: <i>Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.jallcom.2009.12.036
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      – Code: eng
        Text: English
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        PageCount: 6
        StartPage: 739
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      – SubjectFull: Heat treatment of steel
        Type: general
      – SubjectFull: Microstructure
        Type: general
      – SubjectFull: Graphitization
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      – SubjectFull: Steel metallurgy
        Type: general
      – SubjectFull: Surfaces (Technology)
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      – SubjectFull: Mechanical wear
        Type: general
      – SubjectFull: Diffusion
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      – SubjectFull: Phase transitions
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      – TitleFull: The influence of different heat treatment cycles on controlled surface graphitization in CK45 steel
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            NameFull: Hamedi, Y.
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            NameFull: Shishegar, H.R.
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              Text: Mar2010
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              Y: 2010
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