Study of the chemical composition of the surface of high-speed steel specimens with a coating based on titanium nitride after the action of heat

Previously abstracted from original as item 9202-56-0191. The effect of heating R18 HSS coated with titanium nitride (15 mu m) to 600-800 deg C within 10 s on the chemical composition of the coating and substrate was studied. Comparisons were made of the Ti, nitrogen, oxygen, and carbon distribution...

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Bibliographic Details
Published in:Metal science and heat treatment 1991-05, Vol.33 (5-6), p.365-366
Main Authors: KAL'NER, V. D, VERNER, A. K
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Metallic coatings
Metals. Metallurgy
Production techniques
Surface treatment
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Summary:Previously abstracted from original as item 9202-56-0191. The effect of heating R18 HSS coated with titanium nitride (15 mu m) to 600-800 deg C within 10 s on the chemical composition of the coating and substrate was studied. Comparisons were made of the Ti, nitrogen, oxygen, and carbon distributions of the original coating--substrate region and that produced by short- and long-term heating. Long-term heating was done by vacuum annealing at 600-800 deg C for 1 h and resulted in diffusion within the coating--substrate system. Short-term heating resulted in enrichment of the surface of the titanium nitride coating with O with depletion of N and C within the coating. Below the surface, the ratio of the elements N, O, and C reversed relative to that in the coating. Supplemental short-term heating of titanium nitride coated R18 HSS makes it possible to control the formation of the TiN sub x O sub y C sub z compound to raise the tool life and improve the cutting process.
ISSN:0026-0673
1573-8973
DOI:10.1007/BF00775586