摘要
本文探讨了钢中非金属夹杂物存在状态的不确定性和检测问题。结果表明,钢中非金属夹杂物的状态是不确定的,其存在的位置受工艺条件、钢水流动等因素变化的影响;形成的颗粒在三维方向上都有成分偏析,因而平面的能谱分析结果不能确切地得出该颗粒各元素成分的平均值;现在检测钢中非金属夹杂物的手段和方法都有局限性,因此不能确切地知道一个夹杂物颗粒或簇团的立体形态,其尺寸大小只能估计;钢中非金属夹杂物的这种不确定状态源于其形成、移动和凝聚都没有规则,这是一种自然的现象,可以用近代物理学的分形理论来解释;由已检非金属夹杂物中所得到的数据判断其他未检夹杂物的状态,在方法学上属于推测,仅具有参考意义。
In this paper, the uncertainty and detection of the status of non-metallic inclusions in steel is discussed. The result indicates that the status of non-metallic inclusions in steel is uncertain, and its positions are affected by the conditions of technique, the flow of molten steel, etc. The generated inclu- sion particles are inhomogeneous on chemical composition at a three dimensional space, so the average value of every element in the particles can not be accurately obtained by using plane spectrum analysis. At present, the methods of detecting non-metallic inclusions in steel have some limitation, so that the forms of one particle or cluster of inclusions can not be exactly known, and the size of them can only be estimated. The uncertain sta- tus of non-metallic inclusions in steel is from the irregular formation, movement, and agglomeration. This is a natural phenomenon which can be explained by fractal theory in modern physics. The using data from detected non-metallic inclusions to estimate the status of undetected inclusions is a speculation in the theory of method, which has just reference value.
出处
《冶金分析》
EI
CAS
CSCD
北大核心
2008年第9期1-6,共6页
Metallurgical Analysis
关键词
非金属夹杂物
不确定性
检测
分形
non-metallic inclusion
uncertainty
detection
fraetal
