Rapid evaluation of inclusion particles in steel by using Laser Ablation-ICP Mass Spectrometry

详细信息    查看全文 | 下载全文 | 推荐本文 |

• 作者：Karasev AndreyJ(o)nsson P(a)rInoue Ryo
• 会议时间：2013-06-01
• 关键词：LA-ICP-MS ; steel ; non-metallic inclusions ; particle size distribution
• 作者单位：Karasev Andrey,J(o)nsson P(a)r(Department of Materials Science and Engineering,KTH Royal Institute of Technology,100 44 Stockholm,Sweden)Inoue Ryo(Institute of Multidisciplinary Research for Advanced Materials,Tohoku University,Sendai,Japan)
• 母体文献：第五届宝钢学术年会论文集
• 会议名称：第五届宝钢学术年会
• 会议地点：上海
• 主办单位：中国金属学会
• 语种：chi

摘要

Since the control of inclusion particles in steel on different stages of steelmaking process is very important for the production of clean steel with high level of final properties,various instrumental methods were developed for rapid evaluation of inclusion particles.In this study,the Laser Ablation-Inductively Coupled Plasma- Mass Spectrometry ( LA-ICP-MS) was applied for the rapid analysis of composition,number and size of oxide non-metallic inclusion particles and clusters in steels.Some advantages and limitations of this technique are examined and discussed.The lower size limit of oxide inclusion for LA-ICP-MS investigation was estimated based on the difference of ion intensity peaks between the inclusion particle and matrix steel.Based on the overlapping of ion intensity peaks of adjacent plural inclusion particles by LA-ICP-MS analysis,the maximum critical number of inclusion particles per unit volume in steel samples was also estimated.Though this analytical technique has some limits regarding to the content of soluble elements,the number and distribution of analyzed inclusions in metal matrix,it was found that the LA-ICP-MS can be successfully applied for the rapid analysis of oxide inclusion particles in steels.