激光诱导击穿光谱技术对钢中夹杂物表征的研究进展

钢铁材料中不同类型夹杂物的存在,破坏了金属基体连续性,使其塑韧性、疲劳及耐腐蚀等物理化学性能变差,生产中会严格控制夹杂物的大小以及总量,因此,夹杂物的评定也成为了钢质量分级的一项重要指标。文章介绍了激光诱导击穿光谱技术对钢中夹杂物表征的基本原理,综述了其在不同类型夹杂物分布、粒度以及含量表征方面的国内外研究进展,讨论了当前表征中存在的不足和难点,并对其发展前景进行了展望。

Research progress of laser-induced breakdown spectroscopy analysis technique for characterization of inclusions in steel

Different types of inclusions in steel materials could destroy the continuity of the metal matrix. The physical and chemical properties such as plastic toughness, fatigue and corrosion resistance of the material were deteriorated. Therefore, the size and total amount of inclusions were strictly controlled in production, and the assessment of inclusions had become an important index for steel quality classification. The principle of LIBS analysis of inclusion characterization in steel was introduced, the application research progress of LIBS technology in the distribution, particle size and content characterization of different types of inclusions was summarized, the deficiencies and difficulties was disussed, and its development prospects was prospected.