Aluminizing of the Cr15A15 alloy surface by hot-dipping in the melt

被引：1
|
作者：
Shmorgun, V. G. [1 ]
Bogdanov, A. I. [1 ]
Slautin, O. V. [1 ]
Kulevich, V. P. [1 ]
机构：
[1] Volgograd State Tech Univ, 28 Lenina Ave, Volgograd 400005, Russia
来源：
INTERNATIONAL WORKSHOP ADVANCED TECHNOLOGIES IN MATERIAL SCIENCE, MECHANICAL AND AUTOMATION ENGINEERING - MIP: ENGINEERING - 2019 | 2019年 / 537卷
关键词：
D O I：
10.1088/1757-899X/537/2/022069
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The diffusion interraction at the interlayer boundary of the Cr15A15 alloy during aluminizing by hot-dip in a molten bath of AK12M2 silumin is investigated. It is shown that subsequent heat treatment at 1000 degrees C leads to the formation on the surface of the Cr15A15 alloy a coating of variable composition based on iron aluminides FeAl(Cr, Si) / Fe3Al(Cr, Si) / Fe(Al, Cr, Si). Grain growth in the Cr15A15 alloy and a decrease in the density of carbide inclusions with their segregation along the grain boundaries ensures a decrease in its microhardness compared to as-received condition from 2.1 to 1.6 GPa.
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页数：5
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