Особенности механизма пластической деформации электроискровых покрытий и пути повышения их прочностных характеристик при трении
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MIHAILIUC, Alexei; JITARU, Raisa. Особенности механизма пластической деформации электроискровых покрытий и пути повышения их прочностных характеристик при трении. In: Электронная обработка материалов. 2008, nr. 5(44), pp. 49-56. ISSN 0013-5739.
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Электронная обработка материалов
Numărul 5(44) / 2008 / ISSN 0013-5739 /ISSNe 2345-1718

Особенности механизма пластической деформации электроискровых покрытий и пути повышения их прочностных характеристик при трении

Pag. 49-56

Mihailiuc Alexei, Jitaru Raisa
 
Институт прикладной физики АНМ
 
Disponibil în IBN: 9 aprilie 2017


Rezumat

It has been fulfilled the structure state analysis of the metal surface layers after their electric-spark treatment (EST) and following treatment by surface plastic deformation (SPD). The structure levels and its scales which fall in the region 20−103nm have been determined. By the methods of roentgene-structural analysis and electron microscopy it was established that the linear defect density after EST and after EST SPD are practically the same. The last one allowed to suggest that the dislocation cooperative motion, rotation processes are a base of plastic deformation mechanism of the metal electric-spark coatings. Some directions of a stable and more homogeneous structure formation of electric-spark coatings with required properties are proposed.