| Autor: |
Chudina, O. V. |
| Předmět: |
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| Zdroj: |
Welding International; Mar2017, Vol. 31 Issue 3, p233-237, 5p, 3 Black and White Photographs, 2 Graphs |
| Abstrakt: |
Methods of increasing the service properties of steel components by producing hardened modified layers on the surface using laser heating are described. It is proposed to use a combined technology based on laser alloying the steel surface with nitride-forming elements and nitriding. It is shown that laser alloying in the continuous mode results in the formation of a layer with a uniform fine-grained structure with a thickness of 600 μm in the surface layer. Subsequent nitriding eliminates the unfavourable residual stresses and increases the microhardness of low-carbon steels to 20,000 MPa, cracking resistance 1.5–1.8 times and wear resistance 1.5–3 times. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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