Effect of Chromium on Nitrogen Solubility in Liquid Fe-Cr Alloys Containing 30 mass% Cr

被引：34
|
作者：
Kim, Wan-Yi [1 ]
Lee, Chang-Oh [1 ]
Yun, Chul-Wook [1 ]
Pak, Jong-Jin [1 ]
机构：
[1] Hanyang Univ, Dept Met & Mat Engn, Seoul, South Korea
来源：
ISIJ INTERNATIONAL | 2009年 / 49卷 / 11期
关键词：
nitrogen solubility; Fe-Cr alloy; nitrogen; chromium; interaction parameters;
D O I：
10.2355/isijinternational.49.1668
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The nitrogen solubility in liquid Fe-Cr alloys has been measured by the gas-liquid metal equilibration technique in the temperature range from 1873 to 1 973 K. The nitrogen dissolution follows the Siverts' law for liquid Fe-Cr alloys containing chromium up to 30 mass%. Chromium increased the nitrogen solubility linearly at Cr content less than 3 mass%, and the second-order effect of Cr on nitrogen solubility was apparent at higher Cr content. Using Wagner's formalism, the first- and second-order interaction parameters between chromium and nitrogen were determined from the equilibrium relation between chromium and nitrogen contents in liquid Fe-Cr-N alloys as a function of temperature: log f(N)(Cr) = (- 147.8/T+0.019)center dot[%Cr]+(-2.58/T+0.0021)center dot[%Cr](2) (0<mass%Cr<30)
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收藏
页码：1668 / 1672
页数：5
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