低合金钢中非金属夹杂物的综合表征  

Synthetical characterization of non-metallic inclusions in low alloy steel

作　　者：张毅[1] 缪乐德[1] 王国栋[1] 高加强[1] 邬君飞[1] 

机构地区：[1]宝山钢铁股份有限公司研究院分析测试研究中心,上海201900

出　　处：《冶金分析》2011年第7期1-12,共12页Metallurgical Analysis

摘　　要：低合金钢中非金属夹杂物的表征过程中,需要解决夹杂物分析的代表性和准确性问题。本文提出了夹杂物的综合表征方法:从不同产品、不同工艺的样品入手,明确所需表征的目标夹杂物;采用一种或多种恰当的表征技术对目标夹杂物进行全面的分析;通过在一定视场内夹杂物颗粒数量、尺度大小的计算,能够得到单位体积或单位面积下的夹杂物数量以及粒径分布。应用实例表明,对目标夹杂物进行综合表征,从形貌、化学组成、析出方式、数量、粒径分布等方面着手,寻求这些结果与产品性能或工艺改进的关系,并确定目标夹杂物的表征特性,能够为产品研发或工艺研究提供有效的支持。The representative and accuracy of inclusion analysis are two significant issues in characterizing non-metallic inclusions in low alloy steel.In this paper,a synthetical characterization method is proposed： Firstly,the target inclusions to be characterized are defined according to different products and technology;then,the target inclusions are analyzed synthetical through one or more appropriate characterization methods;lastly,the amount and size distribution of inclusions per unit area or volume could be calculated out with the number and size of inclusion particles within a particular field.Practical application example indicates that,through the synthetical characterization of target inclusions from the aspects of morphology,chemical composition,precipitation manner,quantity and size distribution,etc,the relationship between the characterization results and the improvement of products property technology could be discovered and the characterization properties of the target inclusions could be determined,which provides effective support for the research and development of products and technology.

关 键 词：非金属夹杂物 综合表征技术 非水电解提取 萃取复型 

分 类 号：TG115.2[金属学及工艺—物理冶金]