• CN：11-2187/TH
  • ISSN：0577-6686
机械工程学报

›› 2004, Vol. 40 ›› Issue (6): 155-160.

• 论文 • 上一篇    下一篇

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球墨铸铁球化级别的模糊评价模型

徐建林;陈超   

  1. 兰州理工大学有色金属新材料省部共建国家重点实验室;兰州理工大学机电工程学院
  • 发布日期:2004-06-15

FUZZY EVALUATION MODEL FOR THE NODULIZING GRADE OF NODULAR CAST IRON

Xu Jianlin;Chen Chao   

  1. State Key Laboratory of Gansu New Non-ferrous Metal Materials, Lanzhou University of Science & Technology College of Mechanic-Electronic Engineering,Lanzhou Univevsity of Science & Technology
  • Published:2004-06-15

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摘要： 从球化率、球形度、分散度三个方面着手，首次利用模糊数学建立了球墨铸铁球化等级的评价模型，借助于“球铁金相图片分析系统”应用软件对GB9441—1988球墨铸铁金相检验标准的球化分级图进行了处理和分析，对模型进行了修正，得出了一个较为科学的、全面的球铁球化等级的模糊评价体系。该方法可扩展应用于材料的组织评定，对推动定量材料学具有积极作用。

关键词: 模糊数学, 球化等级, 球墨铸铁

Abstract: Analyzing nodularity, sphericity and dispersivity, a fuzzy evaluation model for the nodulizing grade of nodular cast iron is firstly set up by means of fuzzy mathematics. In order to modify and verify the model, many microstructure of all kind nodulizing grade of China state standard (GB9441—1988) are analyzed and summarized by the system of image analysis of the microstructure of nodular cast iron. Finally, a scientific and overall fuzzy evaluation model for the nodulizing grade of nodular cast iron is acquired. The method can be used to evaluate microstructure of other materials, and the result showed that the system has an important effect for pushing on quantitative metallography.

Key words: Fuzzy mathematics, Nodular cast iron, Nodulizing grade

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