Effect of Ti3O5 addition on oxide evolution for HRB400

IF 2.4 4区材料科学 Q2 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Materials Testing Pub Date : 2023-08-15 DOI:10.1515/mt-2023-0141

Hui Li, Xiang Cheng, Yuhui Zhao, H. Kong

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Abstract

Abstract The transient evolution of oxide was studied after directly adding Ti3O5 powder into HRB400 steel. This experiment was carried out in magnesia crucible with vacuum induction furnace and the intermediate samples were taken at 1, 5, 10, and 15 min after Ti3O5 addition. At 20th min, the furnace was powered off to get furnace-cooled cast sample. For intermediate samples, it is found that with increasing treatment time, the titanium content increased though the acid–soluble aluminum content remained stable. Besides, the Ti-bearing oxides were observed by scanning electron microscope (SEM). Moreover, statistical analysis indicated that for Ti-bearing oxide, both number density and titanium content after further normalization increased with increasing processing time. For cast sample, the characteristic of Ti-bearing oxide at different heights are similar. These results confirmed the adding valid of Ti3O5, which may be due to its decomposition. Finally, after heat treatment, these introduced Ti-bearing oxides can induce the intragranular ferrite nucleation. This indicates the effectiveness of external adding method in oxide metallurgy.

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Ti3O5添加对HRB400氧化演化的影响

摘要:研究了HRB400钢中直接加入Ti3O5粉末后氧化物的瞬态演化。实验在真空感应炉镁砂坩埚中进行，分别在Ti3O5加入后1、5、10、15 min取中间试样。在 第20分钟，关闭炉电，得到炉冷的铸样。对于中间样品，随着处理时间的增加，钛含量增加，而酸溶铝含量保持稳定。此外，用扫描电镜(SEM)观察了含钛氧化物的形貌。此外，统计分析表明，对于含ti氧化物，进一步正态化后的数字密度和钛含量随加工时间的增加而增加。对于铸态试样，不同高度的含钛氧化物的特征是相似的。这些结果证实了Ti3O5添加的有效性，这可能是由于其分解所致。最后，经过热处理后，这些引入的含钛氧化物可以诱导晶内铁素体形核。这表明外加法在氧化物冶金中的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Testing 工程技术-材料科学：表征与测试

CiteScore

4.20

自引率

36.00%

发文量

165

审稿时长

4-8 weeks

期刊介绍： Materials Testing is a SCI-listed English language journal dealing with all aspects of material and component testing with a special focus on transfer between laboratory research into industrial application. The journal provides first-hand information on non-destructive, destructive, optical, physical and chemical test procedures. It contains exclusive articles which are peer-reviewed applying respectively high international quality criterions.