INFLUENCE OF THE SIZE OF DROPS AND THE VELOCITY OF FLOW ON THE STRUCTURE AND PROPERTIES OF ELECTRIC-ARC COATINGS

被引：2

作者：

Hvozdets'kyi, V. M. ^{[1
]}

Sirak, Ya. Ya. ^{[1
]}

Zadorozhna, Kh. R. ^{[1
]}

Dem'yanchuk, Ya. M. ^{[2
]}

机构：

[1] Ukrainian Natl Acad Sci, Karpenko Physicomech Inst, Lvov, Ukraine

[2] Ivano Frankivsk Natl Tech Univ Oil & Gas, Ivano Frankivsk, Ukraine

来源：

MATERIALS SCIENCE | 2018年 / 53卷 / 05期

关键词：

electric-arc coating; Laval nozzle; lamellae; oxide films;

D O I：

10.1007/s11003-018-0126-y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We show that, as the pressure of a metal-air jet increases from 0.6 to 1.2 MPa, its velocity increases from 300 to 600 m/sec. It is established that with increase in the velocity of the flow of particles, the time of transportation of drops from the arc to the substrate increases and they strike against a prepared surface at higher temperatures. It is shown that as the air pressure increases, the size of drops and oxides between the lamellae decreases, and the mechanical characteristics improve.

引用

页码：702 / 708

页数：7

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