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| 微区成分扰动生核处理基础研究 | |
| 引用本文： | 翟启杰,邢长虎,赵沛,于艳. 微区成分扰动生核处理基础研究[J]. 钢铁, 2002, 37(6): 39-41 |
| 作者姓名： | 翟启杰 邢长虎 赵沛 于艳 |
| 作者单位： | 1. 上海大学 2. 钢铁研究总院 3. 宝山钢铁公司 |
| 基金项目： | 国家自然科学资金项目资助 ( 5 99740 0 3) |
| 摘 要： | 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。 |
| 关 键 词： | 成分扰动 轴承钢 Q235钢 生核 晶粒细化 |
FUNDAMENTAL STUDY ON PROMOTION OF NUCLEATION BY COMPOSITION DISTURBANCE IN MICRO-AERA |
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| ZHAI Qijie XING Changhu. FUNDAMENTAL STUDY ON PROMOTION OF NUCLEATION BY COMPOSITION DISTURBANCE IN MICRO-AERA[J]. Iron & Steel, 2002, 37(6): 39-41 | |
| Authors: | ZHAI Qijie XING Changhu |
| Affiliation: | ZHAI Qijie XING Changhu (Shanghai University) ZHAO Pei (Central Iron and Steel Research Institute) YU Yan (Shanghai Baosteel Group Corp.) |
| Abstract: | Based on thermodynamics, a new concept for promotion of nucleation by composition disturbance in micro-area was brought forward. This new concept was proved by experiments, which were specially designed to keep the pouring temperature, cooling rate under same conditions. The bearing steel and Q235 were used as experiment materials. The experiment results show that special constituent fluctuation in certain direction and with enough strength in liquid metal can promote nucleation in liquid metal and increase the quantity of equiaxed grains in billets. |
| Keywords: | constituent fluctuation bearing steel Q235 steel nucleation |
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