Research on microstructure and properties of 3D plasma spray welding repair layer of continuous casting segmented rollers

Yuxiang Li; Ying Zhou; Zhengbing Meng; Xiao Liu; Xin Zhang; Yuanyu Chen; Jialong Shen; Jiachi Liao

doi:10.1088/2053-1591/acffad

Materials Research Express (Jan 2023)

Research on microstructure and properties of 3D plasma spray welding repair layer of continuous casting segmented rollers

Yuxiang Li,
Ying Zhou,
Zhengbing Meng,
Xiao Liu,
Xin Zhang,
Yuanyu Chen,
Jialong Shen,
Jiachi Liao

Affiliations

Yuxiang Li: Key Lab of New Processing Technology for Nonferrous Metals and Materials Ministry of Education, Guilin University of Technology , Guilin 541004, People’s Republic of China; College of Materials Science and Engineering, Guilin University of Technology , Guilin 541004, People’s Republic of China
Ying Zhou: ORCiD; Key Lab of New Processing Technology for Nonferrous Metals and Materials Ministry of Education, Guilin University of Technology , Guilin 541004, People’s Republic of China; College of Materials Science and Engineering, Guilin University of Technology , Guilin 541004, People’s Republic of China
Zhengbing Meng: Key Lab of New Processing Technology for Nonferrous Metals and Materials Ministry of Education, Guilin University of Technology , Guilin 541004, People’s Republic of China; College of Materials Science and Engineering, Guilin University of Technology , Guilin 541004, People’s Republic of China
Xiao Liu: Key Lab of New Processing Technology for Nonferrous Metals and Materials Ministry of Education, Guilin University of Technology , Guilin 541004, People’s Republic of China; College of Materials Science and Engineering, Guilin University of Technology , Guilin 541004, People’s Republic of China
Xin Zhang: Key Lab of New Processing Technology for Nonferrous Metals and Materials Ministry of Education, Guilin University of Technology , Guilin 541004, People’s Republic of China; College of Materials Science and Engineering, Guilin University of Technology , Guilin 541004, People’s Republic of China
Yuanyu Chen: Key Lab of New Processing Technology for Nonferrous Metals and Materials Ministry of Education, Guilin University of Technology , Guilin 541004, People’s Republic of China; College of Materials Science and Engineering, Guilin University of Technology , Guilin 541004, People’s Republic of China
Jialong Shen: Key Lab of New Processing Technology for Nonferrous Metals and Materials Ministry of Education, Guilin University of Technology , Guilin 541004, People’s Republic of China; College of Materials Science and Engineering, Guilin University of Technology , Guilin 541004, People’s Republic of China
Jiachi Liao: Queen Mary University of London Engineering School, Northwestern Polytechnical University , Xian 710072, People’s Republic of China

DOI: https://doi.org/10.1088/2053-1591/acffad
Journal volume & issue: Vol. 10, no. 11
p. 116508

Abstract

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In this paper, the Fe-Cr-Ni-Si powder was used in a 3D plasma spray welding machine to perform spray welding repair tests on continuous casting segmented rollers for service life improvement. The phase composition, hardness distribution, abrasion resistance and thermal stability of the spray welding layer were analyzed. Results indicated that the spray welding layer produced by 160 A welding current was more uniform and was with finer organization. The main phase zone was a single γ -Fe and the fusion zone was metallurgically combined with the base metal in a planar grain manner. The hardness of the spray welding layer was the maximum when the welding current was 160 A. The abrasion resistance for each position of the spray welding layer was uniform. The γ -Fe phase zone decreased and the α -Fe phase zone increased with reduction of average hardness after the thermal stability test. In industrial tests, the optimum spray welding parameters were verified and the service life of the continuous casting segmented rollers with spray welding was 2 longer than rollers using surfacing welding process.

Published in Materials Research Express

ISSN: 2053-1591 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials; Technology: Chemical technology
Website: https://iopscience.iop.org/journal/2053-1591

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