EFFECT OF LIQUID MELT NITRIDING METHOD ON STEEL'S NITROGEN CONTENT

被引:0
作者
Shabalov, I. P. [1 ]
Filippov, G. A. [1 ]
Semin, A. E. [2 ]
Shchukina, L. E. [1 ]
机构
[1] Bardin Cent Res Inst Ferrous Met TsNIIchermet, Moscow, Russia
[2] Natl Univ Sci & Technol MISiS, Moscow, Russia
基金
俄罗斯基础研究基金会;
关键词
special metallurgy; nitrogen steels; plasma-arc melting; critical nitrogen concentration;
D O I
10.1007/s11015-015-0060-2
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
Various methods are considered for introducing nitrogen as an alloying component into steel in order to improve a set of mechanical and corrosion properties of the metal subsequently. It is noted that the use of a high-temperature plasma makes it possible to affect the form of nitrogen present within a gas stream (molecular, excited, atomic). The last two forms are very actively absorbed by metal, and this makes it possible to obtain its required content within metal in quite a short time. Thermodynamic calculations are performed for assimilation of different forms of nitrogen by metal. A series of laboratory experiments for nitriding alloy steel 10Kh8NMVFB confirm the results of calculations for greater nitrogen solubility with plasma-arc melting.
引用
收藏
页码:54 / 59
页数:6
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