轧制工艺对微合金钢 EH420 变形奥氏体中碳氮化物析出的影响

特殊钢 ›› 2006, Vol. 27 ›› Issue (4): 16-18.

轧制工艺对微合金钢 EH420 变形奥氏体中碳氮化物析出的影响

王洪^1,2, 张艳艳¹, 刘小林², 蔡庆伍¹

1北京科技大学高效轧制国家工程研究中心，北京100083;
2新余钢铁有限责任公司，新余338001

收稿日期:2006-01-16 出版日期:2006-08-01 发布日期:2023-03-17
作者简介:王洪(1961-),男，教授级高级工程师，1983年江西冶金学院毕业，北京科技大学博士生，中厚板产品开发和工艺研究。

Effect of Rolling Process on Carbo-Nitride Precipitation of Microalloy Steel EH420

Wang Hong^1,2, Zhang Yanyan¹, Liu Xiaolin², Cai Qingwu¹

1 National Engineering Research Center for Advanced Rolling Technology, University of Science and Technology, Beijing 100083;
2 Xinyu Iron and Steel Co Lid, Xinyu 338001

Received:2006-01-16 Published:2006-08-01 Online:2023-03-17

摘要/Abstract

摘要： 采用电子显微分析和物理化学相定量分析技术,研究了在900～1 000℃变形量40％-60％轧制后Nb-V-Ti-B和Nb-V-Ti微合金化钢EH420中碳氮析出物的大小、数量和形貌。试验结果表明,900℃轧制时,钢中析出碳氮化物数量较1 000℃轧制时多;变形量由40％增至60％时,析出碳氮化物数量增加,平均尺寸减小;Ti、Nb碳氮化物在整个轧制过程均有析出,V的碳氮化物只存在较低温度变形时析出。

Abstract: The size, amount and morphology of carbo-nitride precipitated in Nb-V-Ti-B and Nb-V-Ti microalloy steel EH420 rolling at 900~1000℃ with deformation 40%～60% by electron microanalysis and physical-chemistry phase analysis technique. The test results showed that the amount of carbo-nitride precipitated in steel rolling at 900 ℃ was more than that rolling at 1000 ℃; with degree of deformation increased from 40% to 60%, the precipitated carbo-nitride amount increased while average size decreased; and Ti-Nb carbo-nitride precipitated at whole rolling course, but V carbo-nitride precipitated only at lower rolling temperature.

Key words: Microalloy Steel for Ship Plate, Rolling, Carbo-Nitride, Precipitation
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王洪, 张艳艳, 刘小林, 蔡庆伍. 轧制工艺对微合金钢 EH420 变形奥氏体中碳氮化物析出的影响[J]. 特殊钢, 2006, 27(4): 16-18.

Wang Hong, Zhang Yanyan, Liu Xiaolin, Cai Qingwu. Effect of Rolling Process on Carbo-Nitride Precipitation of Microalloy Steel EH420[J]. Special Steel, 2006, 27(4): 16-18.