Melting of High-Nitrogen Austenitic Steels at Atmospheric Pressure

被引：1
作者：
Muradyan, O. S. [1 ]
Muradyan, S. O. [2 ]
机构：
[1] ZAO Izhevsk Test Mech Plant, Izhevsk, Russia
[2] Russian Acad Sci, AA Baikov IMET, Moscow, Russia
来源：
METALLURGIST | 2019年 / 63卷 / 7-8期
关键词：
high-nitrogen austenitic steels; nitrogen concentration; smelting at atmospheric pressure; nitrogen bubble pressure;
D O I：
10.1007/s11015-019-00904-w
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The article considers conditions for nitrogen bubble formation at the crystallization front for iron and stainless steels. Using the results obtained during plasma-arc remelting, a semi-empirical formula is proposed for calculating maximum permissible nitrogen concentrations. It is shown that during steel crystallization with austenite formation at atmospheric pressure it is possible to obtain dense steel ingots with a nitrogen content exceeding its solubility at the liquidus temperature by a factor of 1.4-1.5.
引用
收藏
页码：667 / 671
页数：5
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