低碳球铁中球状石墨形核及生长机制的探讨  

An Approach to Mechanism of Nucleation and Growth Mode of Spheroidal Graphite in Low Carbon S. G. Iron

作　　者：舒信福[1] 陈政[1] 刘文今[2] 张光汉 李世琳[4] 朱绍武[4] 

机构地区：[1]云南工业大学,650051 [2]清华大学 [3]云南机床厂 [4]昆明贵金属研究所

出　　处：《现代铸铁》1996年第4期7-11,共5页Modern Cast Iron

摘　　要：研究表明，低碳球铁中的球状石墨内部结构为C轴呈放射状的多晶体，并呈现出明显的年轮状结构，球状石墨既能以“气泡”形核，也能以“球形夹杂物”形核。石墨球的核心应该是球形。The investigation revealed that the inner structure of the spheroidal graphite in low carbon s. g. iron appeared as a polycrystal which had its C axiles in radial distribution and demonstrated a clear annual ring type structure.The spheroidal graphite could nucleate both with' bubble' and with 'spheroidal inclusion'as its nucleus. The nucleus of the spheroidal graphite should be of spheroidal shape.

关 键 词：球状石墨 球墨铸铁 形核 

分 类 号：TG143.5[一般工业技术—材料科学与工程]