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Influence of the carburization time on the structural and mechanical properties of XC20 steel
- Source :
- Materials Research Express, Materials Research Express, IOP Publishing Ltd, 2021, 8 (8), pp.085604. ⟨10.1088/2053-1591/ac1ece⟩
- Publication Year :
- 2021
- Publisher :
- IOP Publishing, 2021.
-
Abstract
- This study focuses on the effect of carburization time on the structural and mechanical properties of low carbon XC20 mild steel (C. Wt.% 1 = 1.1%, at 910 °C at different carburization times of 2, 4 and 6 h. The results obtained show that XC20 steel (non-carburized) has a ferrite-pearlitic structure with a hardness and a Young’s modulus of the order of (150 HV, 26 KN/mm2). After carburization, the structure of the carburized layer is transformed in martensite (Fe γ) in which cementite (Fe3C) is imbricated. The depth of the carburized layer and the amount of carbon on the surface gradually increase with increasing carburization time. In addition, the carburized XC20 steel becomes hard and brittle where the hardness and Young’s modulus have been increased for a high holding time until reaching maximum values (845 HV, 48 KN mm−2) after 6 h of carburization . However, the toughness of XC20 steel has been reduced from 163 to 40 J cm−2.
- Subjects :
- Materials science
Polymers and Plastics
Cementite
02 engineering and technology
Precipitation
Sciences de l'ingénieur
01 natural sciences
Coatings and Films
Biomaterials
Diffusion
[SPI]Engineering Sciences [physics]
chemistry.chemical_compound
Carburization
0103 physical sciences
Electronic
Optical and Magnetic Materials
Diffusion (business)
010302 applied physics
Precipitation (chemistry)
Metallurgy
Metals and Alloys
021001 nanoscience & nanotechnology
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Surfaces
XC20 steel
Impact
chemistry
Hardening (metallurgy)
Hardening
0210 nano-technology
Subjects
Details
- Language :
- English
- ISSN :
- 20531591
- Database :
- OpenAIRE
- Journal :
- Materials Research Express, Materials Research Express, IOP Publishing Ltd, 2021, 8 (8), pp.085604. ⟨10.1088/2053-1591/ac1ece⟩
- Accession number :
- edsair.doi.dedup.....952b86cdd39ab429a591ea840226c95c