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- Title
Substantiation of the Choice of Materials for Surfacing Based on the Fractographic Analysis of Fatigue Fractures.
- Authors
Ryabtsev, I. O.; Babinets, A. A.; Student, O. Z.; Knysh, V. V.; Solovej, S. O.
- Abstract
The effect of the type of materials for single- and multilayer surfacing of specimens on their serviceability under fatigue loading is analyzed by the fractographic method. It is shown that the fatigue life and fractographic features of the deposited specimens depend on the presence of an intermediate sublayer and the material used for its deposition. The homogeneous ductile fibrous-like topography of the fatigue fracture surface is predominant within the deposited layers and base metal on specimens with a sublayer of 08kp plastic low-carbon steel and a wear-resistant functional layer (25Kh5FМS tool steel is its prototype in terms of the composition and properties). By using 12Kh1МF steel for the sublayer, we observe the formation of crystal-like topography of the fracture surface inside all deposited layers and high inhomogeneity along the line of fusion of the functional layer and the sublayer, which is responsible for low fatigue life of the specimens. To increase the fatigue life of the deposited parts, it is recommended to apply a sublayer of low-carbon plastic steels prior to the formation of a functional layer.
- Subjects
STRESS fractures (Orthopedics); SURFACES (Technology); FATIGUE life; MILD steel; TOOL-steel; FRACTOGRAPHY
- Publication
Materials Science, 2022, Vol 58, Issue 1, p126
- ISSN
1068-820X
- Publication type
Article
- DOI
10.1007/s11003-022-00640-8