粉末冶金技术2025，Vol.43Issue(1)：52-60,9.DOI:10.19591/j.cnki.cn11-1974/tf.2024020007
基于有限元模拟93W-Ni-Fe合金生坯烧结过程的热导率预测
Prediction of thermal conductivity of 93W-Ni-Fe alloys in sintering process based on finite element analysis
摘要
Abstract
Thermal conductivity is an important thermophysical parameter required for the numerical simulation of constitutive equations.The existing thermal conductivity measurement equipment and methods cannot measure the thermal conductivity of refractory metals during high temperature sintering.Based on the prediction model of 93W-Ni-Fe refractory metals with the PixelMapPaint method,the thermal conductivity of 93W-Ni-Fe alloy billets formed by cold isostatic pressing was predicted at different temperatures during the sintering process,and the thermal conductivity was verified by laser flash method.The results show that,when the sintering temperature is 1100℃or below,the prediction accuracy of 93W-Ni-Fe thermal conductivity is high,which is in good agreement with the experimental results with the average relative error of±2.15%,indicating the reliability of the finite element method for thermal conductivity prediction.When the sintering temperature is higher than 1100℃,the actual measurement of thermal conductivity is invalid,and the calculated values by finite element method can be used as the reference to make up for the deficiency of the experimental measurement.关键词
93W-Ni-Fe难熔金属/烧结/热导率/有限元模拟Key words
93W-Ni-Fe refractory metal/sintering/thermal conductivity/finite element simulation分类
计算机与自动化引用本文复制引用
尹刚,潘前,赵腾,尹海清,王永伟,曲选辉,熊宁..基于有限元模拟93W-Ni-Fe合金生坯烧结过程的热导率预测[J].粉末冶金技术,2025,43(1):52-60,9.基金项目
国家自然科学基金资助项目(U2141205,52371002) （U2141205,52371002）
国家重点研发计划资助项目(2023YFE0200200,2023YFB3507200) （2023YFE0200200,2023YFB3507200）
