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Ion implantation as a way to improve the operating durability of fine-size steel tool

Ion implantation as a way to improve the operating durability of fine-size steel tool

Abstract

The work is devoted to the improving the operating durability of a fine-size tool. The application of such tool has economic gains for the producer as leads to the decrease of bought tool expenses. Modified coatings of titanium nitride and chromium on the bases of structural steel and structural alloyed steel have been produced by the ion implantation method. The structure and physical properties of these coatings, as well as their use as protective coatings on the fine-size tool have been studied in this article. Due to the correctly chosen regimes (U discharge = 400 ÷ 430 V, I discharge = 0,5 ÷ 0,35 A, U target = 2 ÷ 1,2 kV, I target = 50 ÷ 60 mA, U base = 25 kV, I base = 35 mA, рgas = 3,32·10-2 Pа), a doze of implanted ions (2,0×1016 – 8,03×1017 ion/cm2), materials of the target(Ti and Cr) and the base (ВСт3сп and 40Cr) and as a result of carrying out experimental researches high quality protective coatings have been produced, microhardness increasing 2,5 times and wear resistance increasing 2,5 times. When using the results of work in practice wear resistance of working surfaces of the fine-size tool has been increased 3 - 6 times. The use of ion-plasma processing enables to get steel with modified protective coatings and to increase the operating durability of the fine-size steel tool and small but having key importance machine parts.

Методом ионной имплантации получены модифицированные покрытия нитридов титана и хрома на подложках углеродистой и конструкционной легированной сталей. Изучены структура и физические свойства этих покрытий, а также их использование в качестве защитных покрытий на мелкоразмерном волочильном инструменте.

Методом іонної імплантації отримані модифіковані покриття нітридів титану та хрому на підкладках вуглецевої і конструкційної легованої сталей. Вивчені структура та фізичні властивості цих покриттів, а також їх використання в якості захисних покриттів на дрібно розмірному волочильному інструменті.

Keywords

ion implantation; titanium; chromium; modified coating; microhardness; wear resistance; operating durability, ионная имплантация; титан; хром; модифицированное покрытие; микротвердость; износостойкость; эксплуатационная стойкость, іонна імплантація; титан; хром; модифіковане покриття; мікротвердість; зносостійкість; експлуатаційна стійкість, УДК 533.59

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold