Structure and Lattice Strains in the Surface Сr–Mn–N Steel Layer Formed by a Combination of Friction and Electron-Beam Treatments
| Parent link: | Physics of Metals and Metallography Vol. 120, iss. 11.— 2019.— [P. 1071-1077] |
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| Other Authors: | , , , , , , , , |
| Summary: | Title screen The effect of surface mechanical and heat treatment, which includes successive friction and electron-beam treatments, on the structure, mechanical properties, and the elastically deformed state of a 16.5 Cr–18.8 Mn–0.53 N–0.07 C steel has been studied in this work. The mechanical and heat treatment has been shown to refine the grain structure in the surface layer to a grain size of 2 ?m, form a {100} ?001? texture, and retain a deformation-hardened sublayer. A surface layer to 200 nm thick is enriched with oxygen, nitrogen, and carbon. X-ray diffraction has been used to study austenite lattice strains caused by residual stresses. The mechanical and heat treatment has been found to reduce the friction-induced elastic lattice contraction along the normal to the surface. The direction [100] is most sensitive to the effect of residual stresses and can serve as a marker when analyzing the nature of residual stresses in steels with structurally-changed plastically-undeformed surface layers. |
| Published: |
2019
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| Subjects: | |
| Online Access: | https://doi.org/10.1134/S0031918X19110115 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662322 |