Transactions of Materials and Heat Treatment

Title：Optimization on heat treatment process parameters for cylindrical parts based on grey correlation degree

Authors： Fan Wenxin Li Zhiwei Yin Ao Bai Jinlin Wang Mengjie Zhang Xiaoyu

Unit： North University of China North Automatic Control Technology Institute

KeyWords： heat treatment grey correlation degree cylindrical part mechanical property orthogonal test

ClassificationCode：TG376

year,vol(issue):pagenumber：2019,44(3):111-114

Abstract：

Taking the annealing temperature, holding time and cooling method as experimental factors and the tensile strength and brinell hardness of the workpiece after heat treatment as evaluation indexes, nine groups of tests were conducted according to the orthogonal test table, and through the calculation and the analysis of the grey correlation coefficient and grey correlation degree, the multi-objective parameter optimization was realized to obtain the optimal heat treatment parameter combination and the order of influence of the heat treatment parameters on the evaluation index. The results show that the order influencing mechanical properties of the cylindrical parts is annealing temperature>holding time>cooling mode, and mechanical properties of the workpiece after heat treatment with optimized parameter combination are higher than that after the general heat treatment.

Funds：

山西省自然科学基金资助项目(2012011023-2)；山西省高校高新技术产业化项目(20120021)

樊文欣(1964-)，男，博士，教授，E-mail：fanwx@nuc.edu.cn

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