Laws of Formation of Electrospark Coatings from Alloys of the Ni – Cr – Al – Y System

被引：0
|
作者：
Alexander V. Paustovskii
Raisa A. Alfintseva
Tatyana V. Kurinnaya
Valentina V. Pogorelaya
Stepan N. Kirilenko
机构：
[1] National Academy of Sciences of Ukraine,Institute for Problems of Materials Science
来源：
Powder Metallurgy and Metal Ceramics | 2004年 / 43卷
关键词：
electrospark alloying; anode; cast alloy; hot pressing; microstructure; phase composition; solid solution; intermetallic compound; wear resistance; microhardness;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The main parameters of electrospark alloying of steel 45 with anodes made from Ni – Cr – Al – Y alloys have been investigated. The anodes were fabricated by casting and hot pressing. The highest values of the mass transfer coefficient were observed in the case of electrospark alloying with hot-pressed alloys. Microstructure and x-ray phase analyses of electrospark coatings revealed the presence of solid solutions based on nickel, iron, chromium as well as intermetallic compounds. Coatings obtained by electrospark alloying with hot-pressed alloy are more wear-resistant than are coatings obtained by alloying with cast alloys.
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页码：251 / 257
页数：6
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