Effect of Non-Vacuum Nitrogen Blowing Process on Nitrogen Absorption Behavior of Austenite Stainless Steel 316L

Special Steel ›› 2011, Vol. 32 ›› Issue (5): 5-7.

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Effect of Non-Vacuum Nitrogen Blowing Process on Nitrogen Absorption Behavior of Austenite Stainless Steel 316L

Shi Yanlin^1,2 , Bao Yanping¹ , Dong Zhongqi²

1. Metallurgical Engineering Research Institute, University of Science and Technology, Beijing 100083 ；
2. Department of Metal Materials Engineering, Hebei College of Professional Technology for Industry, Shijiazhuang 050091 ；

Received:2011-04-06 Online:2011-10-01 Published:2022-10-27

非真空吹氮工艺对316L奥氏体不锈钢吸氮行为的影响

时彦林^1,2，包燕平¹，董中奇²

1. 北京科技大学冶金工程研究院，北京 100083；
2. 河北工业职业技术学院金属材料工程系，石家庄 050091 ；

作者简介:时彦林(1967-)，男，博士生，副教授，1990年燕山大学毕业。
基金资助:
“十一五”国家科技支撑计划资助项目 (2006BAE03A06)

Abstract

Abstract: Effect of nitrogen blowing time (0-50 min) , nitrogen partial pressure (35-100 kPa) , nitrogen blowing rate (total flow rate 0.3 L/min ,N₂ ：Ar=1 ：3〜3：1) , liquid temperature ( 1773-1833 K) on nitrogen content in 0.8 kg liquid of austenite stainless steel 316L (% ：0.031C, 16.13Cr, 10.12Ni, 2.12Mo) has been studied by using corundum crucible-silicon-molybdenum rod electric resistance furnace in laboratory. Results show that with increasing nitrogen blowing time and nitrogen partial pressure the nitrogen content in steel increases ； with increasing blowing nitrogen rate the time that nitrogen content in liquid comes up to saturation value reduces and with decreasing liquid temperature the dissolvability of nitrogen in steel increases. Analysis on test results is carried out by using thermodynamics and kinetics models.

Key words: Nitrogen Blowing, Stainless Steel 316L, Thermodynamics Model, Kinetics

摘要： 在实验室通过刚玉坩埚-硅钼棒电阻炉研究了吹氮时间(0～50 min),氮气分压(35～100kPa),吹氮流量(总流量0.3 L/min;N₂:Ar=1:3～3:1),钢液温度(1 773～1 833 K)对0.8 kg 316 L不锈钢液(%:0.031C、16.13Cr、10.12Ni、2.12Mo)中氮含量的影响。结果表明,钢中氮含量随着吹氮时间、氮分压的增加而增大,随吹氮流量增加钢液氮含量达到饱和的时间缩短,氮的溶解度随着钢液温度的降低而升高。应用热力学模型和动力学模型对实验结果进行分析。

关键词: 吹氮, 316L不锈钢, 热力学模型, 动力学

Shi Yanlin , Bao Yanping , Dong Zhongqi. Effect of Non-Vacuum Nitrogen Blowing Process on Nitrogen Absorption Behavior of Austenite Stainless Steel 316L[J]. Special Steel, 2011, 32(5): 5-7.

时彦林, 包燕平, 董中奇. 非真空吹氮工艺对316L奥氏体不锈钢吸氮行为的影响[J]. 特殊钢, 2011, 32(5): 5-7.

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Effect of Non-Vacuum Nitrogen Blowing Process on Nitrogen Absorption Behavior of Austenite Stainless Steel 316L

非真空吹氮工艺对316L奥氏体不锈钢吸氮行为的影响

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