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      Evaluation of the quality of cladding deposited on continuous steel casting rolls

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          Abstract

          This paper presents the quality analysis of cladding layers deposited on continuous steel casting rolls made of 41CrMo4 (EN 10083-1-91). The effect of filler used on the tribological properties of claddings was analyzed. There was minimal mixing between the base material and interlayer observed in the process of hard surfacing. The microstructure of the interlayer and the coatings is martensite–ferrite. Dispersed carbides MC, M 7C 3, and Cr 23C 6 were observed in the interlayer. Small amounts of carbides were also observed in the cover layer along with Cr 2N and CrN, which was confirmed by energy dispersive X-ray analysis. The highest average hardness, 410 HV30, was measured in the cover layer at a distance of 1 mm from the surface. The lowest hardness was found in the base material, 239 to 243 HV30. The hardness of the interlayer metal is affected by mixing of cladding and cover layer metal. The cladding metal showed a martensite–ferrite structure and fine precipitates in the interlayer, and diffraction spectra of the carbides had the characteristics of MC, M 7C 3, and Cr 23C 6 carbides. Lower abrasive wear has been reported in the reference material (a roll with a surface-hardened layer), which is in line with the contact surface hardness of test samples.

          Author and article information

          Journal
          ijmr
          International Journal of Materials Research
          Carl Hanser Verlag
          1862-5282
          2195-8556
          15 February 2013
          : 104
          : 2
          : 183-191
          Affiliations
          1 Department of Technology and Materials, Faculty of Mechanical Engineering, Technical university of Košice, Košice, Slovak Republic
          Author notes
          [* ] Correspondence address, Anna Guzanová Mäsiarska 74, 040 22 Košice, Slovakia, Tel.: +421 55 602 3512, Fax: +421 55 622 5186, E-mail: anna.guzanova@ 123456tuke.sk
          Article
          MK110842
          10.3139/146.110842
          f73ee5f3-682b-47b6-b699-376c946cf2b1
          © 2013, Carl Hanser Verlag, München
          History
          : 2 December 2010
          : 16 July 2012
          : 23 August 2012
          Page count
          References: 43, Pages: 9
          Categories
          Original Contributions

          Materials technology,Materials characterization,Materials science
          Renovation,Submerged arc welding (SAW),Wear,Cladding

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