Structure and properties of steel case-hardened by non-vacuum electron-beam cladding of carbon fibers

International Conference "Modern Technologies and Materials of New Generations"

Losinskaya, A.A.^1 ; Lozhkina, E.A.^1 ; Bardin, A.I.^1

Novosibirsk State Technical University, K. Marksa Prospekt, 20, Novosibirsk

630073, Russia^1

关键词: Electron beam claddings;    Hardened layers;    Hardened materials;    Non vacuum;    Performance characteristics;    Steel case;    Structure and properties;    Surface layers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/286/1/012036/pdf
DOI  :  10.1088/1757-899X/286/1/012036

来源: IOP

【 摘 要 】

At the present time, the actual problem of materials science is the increase in the steels performance characteristics. In the paper some mechanical properties of the case-hardened materials received by non-vacuum electron-beam cladding of carbon fibers are determined. The depth of the hardened layers varies from 1.5 to 3 mm. The impact strength of the samples exceeds 50 J/cm2. The wear resistance of the coatings obtained exceeds the properties of steel 20 after cementation and quenching with low tempering. The results of a study of the microhardness of the resulting layers and the microstructure are also given. The hardness of the surface layers exceeds 5700 MPa.