Construction of surface layers with special properties in the hardening of steels

Designing surface layers with special properties at strengthening of steels gives the chance to receive effective tools of a special purpose. The technological process of hardening by boron saturation of the jewellery tool - crimpings for fixing jewellery stones from carbon steel (0.7% C) is offered...

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Published in:IOP conference series. Materials Science and Engineering 2022-03, Vol.1235 (1), p.12031
Main Authors: Volkov, O, Knyazev, S, Subbotina, V, Iancu, C, Gutsalenko, Yu, Shelkovyi, O, Strelchuk, R.
Format: Article
Language:English
Subjects:
Boron
Carbon steels
Fixing
Folding
Jewelry
Martensite
Microhardness
Saturation
Steel
Stone
Surface layers
Tempering
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container_title IOP conference series. Materials Science and Engineering
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creator Volkov, O
Knyazev, S
Subbotina, V
Iancu, C
Gutsalenko, Yu
Shelkovyi, O
Strelchuk, R.
description Designing surface layers with special properties at strengthening of steels gives the chance to receive effective tools of a special purpose. The technological process of hardening by boron saturation of the jewellery tool - crimpings for fixing jewellery stones from carbon steel (0.7% C) is offered. Boron saturation of steel crimpings for fixing jewellery stones was performed before traditional hardening and low tempering. The microhardness of the surface layer of boron saturated steel has been more than doubled: at a depth of up to 50 μm – up to more than 16 GPa against 6 GPa for traditional hardening technology. Between the upper hardened layer and the unaltered inner metal, a transitional structure zone with tempering martensite is observed. This zone has a thickness of about 100 μm and an average microhardness in the range from 10 GPa to about 14 GPa.
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subjects Boron
Carbon steels
Fixing
Folding
Jewelry
Martensite
Microhardness
Saturation
Steel
Stone
Surface layers
Tempering
title Construction of surface layers with special properties in the hardening of steels
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