INFLUENCE OF CARBURIZING ON SURFACE LAYER OF M50 NIL STEEL FOR BEARING APPLICATIONS.
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| Title: | INFLUENCE OF CARBURIZING ON SURFACE LAYER OF M50 NIL STEEL FOR BEARING APPLICATIONS. |
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| Authors: | C., ANIL KUMAR REDDY1 anilreddymechanical@gmail.com, RAO, POTHAMSETTY KASI V.1, BEGORI, VENKATESH2, BOGGARAPU, NAGESWARA RAO1 |
| Source: | Archives of Metallurgy & Materials. 2026, Vol. 71 Issue 1, p61-73. 13p. |
| Subjects: | Carburization, Heat treatment, Steel alloys, Microstructure, Wear resistance, Corrosion resistance, Hardness, Aerospace materials |
| Abstract: | M50Nil steel is a low carbon alloy steel known for its strength, toughness, and superior wear and corrosion resistance at high temperatures. These beneficial properties lead to its widespread use in the aerospace industry. This study aims to clarify how different carburization temperatures and tempering processes affect the mechanical properties of carburized M50NiL steel. The carburization was performed in the pit furnace for three different durations (1, 1.5, and 3 hours) at temperature range of 880°C to 940°C. To fully understand the behavior of M50Nil steel during carburization, a range of temperatures from 880 to 940°C was used for the treatment. The surface layers were characterized by using EDS, X-ray diffraction (XRD), and Vickers microhardness testing. The EDS analysis of carburized samples usually shows a higher carbon concentration in the carburized layer than in the base material. The carburized specimen contained only the ε-fe3n phase, indicating that carbon in the furnace atmosphere helped stabilize ε-fe3n instead of the γ'-fe4n phase. The microhardness of carburized sample surfaces at different temperatures ranged from 480 to 855 Hv. The steel carburized at 880°C for 1.5 hours showed excellent surface hardness of 855 HV and a case depth of 204.00 μm. Carbon coating greatly enhances surface hardness, creating a thin outer layer with excellent wear resistance. The cbz 940 sample tempered for 1.5 hours showed lower wear rates than the untreated specimen. Potentiodynamic polarization tests in a 3.5% NaCl saline solution were performed to assess the corrosion resistance of the steel samples. Comparing the results, steel carburized at lower temperatures showed better corrosion resistance. The results show that as carburizing temperatures rise, the proportions of γ′ phases and larger submicron precipitates also increase, which is linked to a higher presence of large primary carbides. [ABSTRACT FROM AUTHOR] |
| Copyright of Archives of Metallurgy & Materials is the property of Polish Academy of Sciences 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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| Items | – Name: Title Label: Title Group: Ti Data: INFLUENCE OF CARBURIZING ON SURFACE LAYER OF M50 NIL STEEL FOR BEARING APPLICATIONS. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22C%2E%2C+ANIL+KUMAR+REDDY%22">C., ANIL KUMAR REDDY</searchLink><relatesTo>1</relatesTo><i> anilreddymechanical@gmail.com</i><br /><searchLink fieldCode="AR" term="%22RAO%2C+POTHAMSETTY+KASI+V%2E%22">RAO, POTHAMSETTY KASI V.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22BEGORI%2C+VENKATESH%22">BEGORI, VENKATESH</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22BOGGARAPU%2C+NAGESWARA+RAO%22">BOGGARAPU, NAGESWARA RAO</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Archives+of+Metallurgy+%26+Materials%22">Archives of Metallurgy & Materials</searchLink>. 2026, Vol. 71 Issue 1, p61-73. 13p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Carburization%22">Carburization</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+treatment%22">Heat treatment</searchLink><br /><searchLink fieldCode="DE" term="%22Steel+alloys%22">Steel alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Microstructure%22">Microstructure</searchLink><br /><searchLink fieldCode="DE" term="%22Wear+resistance%22">Wear resistance</searchLink><br /><searchLink fieldCode="DE" term="%22Corrosion+resistance%22">Corrosion resistance</searchLink><br /><searchLink fieldCode="DE" term="%22Hardness%22">Hardness</searchLink><br /><searchLink fieldCode="DE" term="%22Aerospace+materials%22">Aerospace materials</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: M50Nil steel is a low carbon alloy steel known for its strength, toughness, and superior wear and corrosion resistance at high temperatures. These beneficial properties lead to its widespread use in the aerospace industry. This study aims to clarify how different carburization temperatures and tempering processes affect the mechanical properties of carburized M50NiL steel. The carburization was performed in the pit furnace for three different durations (1, 1.5, and 3 hours) at temperature range of 880°C to 940°C. To fully understand the behavior of M50Nil steel during carburization, a range of temperatures from 880 to 940°C was used for the treatment. The surface layers were characterized by using EDS, X-ray diffraction (XRD), and Vickers microhardness testing. The EDS analysis of carburized samples usually shows a higher carbon concentration in the carburized layer than in the base material. The carburized specimen contained only the ε-fe3n phase, indicating that carbon in the furnace atmosphere helped stabilize ε-fe3n instead of the γ'-fe4n phase. The microhardness of carburized sample surfaces at different temperatures ranged from 480 to 855 Hv. The steel carburized at 880°C for 1.5 hours showed excellent surface hardness of 855 HV and a case depth of 204.00 μm. Carbon coating greatly enhances surface hardness, creating a thin outer layer with excellent wear resistance. The cbz 940 sample tempered for 1.5 hours showed lower wear rates than the untreated specimen. Potentiodynamic polarization tests in a 3.5% NaCl saline solution were performed to assess the corrosion resistance of the steel samples. Comparing the results, steel carburized at lower temperatures showed better corrosion resistance. The results show that as carburizing temperatures rise, the proportions of γ′ phases and larger submicron precipitates also increase, which is linked to a higher presence of large primary carbides. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Archives of Metallurgy & Materials is the property of Polish Academy of Sciences 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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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.24425/amm.2026.157770 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 61 Subjects: – SubjectFull: Carburization Type: general – SubjectFull: Heat treatment Type: general – SubjectFull: Steel alloys Type: general – SubjectFull: Microstructure Type: general – SubjectFull: Wear resistance Type: general – SubjectFull: Corrosion resistance Type: general – SubjectFull: Hardness Type: general – SubjectFull: Aerospace materials Type: general Titles: – TitleFull: INFLUENCE OF CARBURIZING ON SURFACE LAYER OF M50 NIL STEEL FOR BEARING APPLICATIONS. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: C., ANIL KUMAR REDDY – PersonEntity: Name: NameFull: RAO, POTHAMSETTY KASI V. – PersonEntity: Name: NameFull: BEGORI, VENKATESH – PersonEntity: Name: NameFull: BOGGARAPU, NAGESWARA RAO IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: 2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 17333490 Numbering: – Type: volume Value: 71 – Type: issue Value: 1 Titles: – TitleFull: Archives of Metallurgy & Materials Type: main |
| ResultId | 1 |
