Formation of Electric-Spark Coatings of Ni-Cr-Al-Y Eutectic Alloys

被引：0
|
作者：
A. V. Paustovskii
R. A. Alfintseva
V. V. Pogorelaya
V. M. Vereshchak
T. V. Kurinnaya
机构：
来源：
Materials Science | 2003年 / 39卷
关键词：
Nickel; Chrome; Mass Transfer; Uniform Distribution; Transfer Coefficient;
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摘要：
We studied the main parameters of the kinetics of electric-spark alloying of 45 steel with anodes cast and hot-pressed from alloys of the Ni-Cr-Al-Y system. The highest mass transfer coefficient was obtained in the case of alloying with hot-pressed alloys. A uniform distribution of nickel-, chrome-, and iron-base phases as well as of intermetallic ones was detected in the electric-spark coatings by means of microstructural, X-ray phase, and X-ray spectral investigations, which provides evidence of the formation of a structure in the form of a conglomerate of fine phases. The wear resistance of the coatings obtained from hot-pressed anodes is higher than that from cast alloys.
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页码：416 / 421
页数：5
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