微区成分扰动生核处理基础研究

钢铁, 2002, 37(6): 39-41.

1.上海大学

2.上海大学

3.钢铁研究总院

4.宝山钢铁公司

基金项目: 国家自然科学基金(59974003)

FUNDAMENTAL STUDY ON PROMOTION OF NUCLEATION BY COMPOSITION DISTURBANCE IN MICRO-AERA

运用热力学理论提出了微区成分扰动生核处理的新构想,并以轴承钢和Q235钢为实验材料,采用同时浇注分流充型的实验方法对其进行了实验验证.研究结果表明,在钢液中造成一定方向和程度的成分起伏,可以促进钢液生核,从而增加铸坯中等轴晶数量.

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