Microstructure evolutions of graded high-vanadium tool steel composite coating in-situ fabricated via atmospheric plasma beam alloying

Autor: Shuqun Chen, Huatang Cao, Xuanpu Dong, M. V. Dutka, Yutao Pei
Přispěvatelé: Advanced Production Engineering
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Journal of Alloys and Compounds, 720(2017), 169-181. Elsevier Science
ISSN: 0925-8388
Popis: A novel high-vanadium based hard composite coating was synthesized from premixed powders (V, Cr, Mo, Ti, Nb) on ductile iron (DI) substrate via atmospheric plasma beam surface alloying process. The graded coating can be divided into three distinct zones: upper alloyed zone (AZ) rich with spherical primary and eutectic submicron carbides, middle melted zone (MZ) with fine white iron structure embedded with high-carbon martensite and lower heat affected zone (HAZ) where martensite/ledeburite double shells were substantially formed. Spherical or bulk-like primary carbides with diameter
Databáze: OpenAIRE