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Формирование поверхностных наноструктурированных слоев из материалов с ЭПФ на деталях машиностроительного назначения как основа ресурсосберегающих технологий

Формирование поверхностных наноструктурированных слоев из материалов с ЭПФ на деталях машиностроительного назначения как основа ресурсосберегающих технологий

Abstract

На основе анализа повреждаемости лопастей гребных винтов (ГВ) морских судов показана целесообразность поверхностного модифицирования для обеспечения надежности и продления ресурса. В качестве ресурсосберегающей технологии предложено использовать поверхностное модифицирование стальных лопастей ГВ материалами с эффектом памяти формы (ЭПФ) на основе TiNi. Формирование поверхностных наноструктурированных слоев из материалов с ЭПФ производится плазменным напылением механически активированного порошка TiNi. Приведены результаты исследования напряженно-деформированного состояния ГВ (на примере т/х «Concord» Новороссийского морского пароходства) с поверхностным слоем TiNi, показавшие снижение напряжений в поверхностном слое при формировании мартенситной структуры TiNi. Экспериментальные исследования образцов с поверхностно-модифицированным слоем в условиях многоциклового нагружения и воздействия морской воды подтвердили повышение долговечности.

On the basis of damageability analysis of blades of ocean vessels water propellers the expediency of superficial modifying for maintenance the reliability and resource prolongation is shown. As resourcesaving technology superficial modifying of ocean vessels steel blades by materials with effect of form memory (EFM) on the basis of TiNi is offered. Formation of superficial nanostructured layers from materials with EFM is made by plasma dusting of mechanically activated powder TiNi. Results of research the intense-deformed condition of water propellers (on example of motor ship «Concord», Novorossiysk sea shipping company) with surface layer from TiNi, shown decrease in pressure of surface layer as the result of TiNi martensite structures formation. Experimental researches of samples with superficialmodified layer in the conditions of multicyclic stressing and influences of sea water have confirmed the durability increase.

Keywords

НАНОСТРУКТУРИРОВАННЫЙ СЛОЙ, МАТЕРИАЛ С ЭФФЕКТОМ ПАМЯТИ ФОРМЫ, ДОЛГОВЕЧНОСТЬ

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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