Effect of Different Alloying Processes on Inclusions of 18Cr Ultra-pure Ferrite Stainless Steel during Refining Process

Zhang Jianlong; Chen Xingrun; Cheng Yunxia; Li Hongliang; Xu Bin; Pan Jixiang

doi:10.20057/j.1003-8620.2022-00207

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Effect of Different Alloying Processes on Inclusions of 18Cr Ultra-pure Ferrite Stainless Steel during Refining Process

Smelting and Solidification | 更新时间：2026-01-21

- Effect of Different Alloying Processes on Inclusions of 18Cr Ultra-pure Ferrite Stainless Steel during Refining Process
- Special Steel Vol. 44, Issue 3, Pages: 34-38(2023)
- 作者机构：
  
  酒泉钢铁集团宏兴钢铁股份有限公司，嘉峪关 735100
- 作者简介：
- 基金信息：
- DOI：10.20057/j.1003-8620.2022-00207
  CLC：
- Received：05 December 2022，
  
  Published：01 June 2023
- 稿件说明：
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张建龙,陈兴润,程云霞等.不同合金化工艺对18Cr超纯铁素体不锈钢精炼过程夹杂物的影响[J].特殊钢,2023,44(03):34-38.

Zhang Jianlong,Chen Xingrun,Cheng Yunxia,et al.Effect of Different Alloying Processes on Inclusions of 18Cr Ultra-pure Ferrite Stainless Steel during Refining Process[J].Special Steel,2023,44(03):34-38.
张建龙,陈兴润,程云霞等.不同合金化工艺对18Cr超纯铁素体不锈钢精炼过程夹杂物的影响[J].特殊钢,2023,44(03):34-38. DOI： 10.20057/j.1003-8620.2022-00207.

Zhang Jianlong,Chen Xingrun,Cheng Yunxia,et al.Effect of Different Alloying Processes on Inclusions of 18Cr Ultra-pure Ferrite Stainless Steel during Refining Process[J].Special Steel,2023,44(03):34-38. DOI： 10.20057/j.1003-8620.2022-00207.

摘要

采用试验和热力学计算相结合的方法研究了不同合金化工艺对18Cr超纯铁素体不锈钢精炼过程夹杂物的影响。试验结果表明：18Cr超纯铁素体不锈钢钛合金化前的夹杂物类型为CaO-Al

-MgO，钛合金化后夹杂物类型转变为了CaO-Al

-MgO-TiO

。铌钛双稳定（Ti：0.181%，Nb：0.147%）合金化后的炉次夹杂物数量密度和夹杂物中TiO

的重量百分比都要低于钛单稳定（Ti：0.324%）的炉次。

Abstract

Effect of different alloying processes on inclusions of 18Cr ultra-pure ferrite stainless steel during refining process were investigated by using industrial experiments and thermodynamic calculations. The results showed that the inclusion type of 18Cr ultra-pure ferrite stainless steel before titanium alloying is CaO-Al

-MgO， and the inclusion type changes to CaO-Al

-MgO-TiO

after titanium alloying. After titanium alloying， the number density of inclusions and the weight percentage of TiO

in Nb-Ti double stable heats number （Ti： 0.181%， Nb： 0.147%） are lower than those in single Ti stable heats number （Ti： 0.324%）.

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references

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