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

作　　者：尹刚 潘前 赵腾 尹海清 王永伟 曲选辉 熊宁[3] YIN Gang;PAN Qian;ZHAO Teng;YIN Haiqing;WANG Yongwei;QU Xuanhui;XIONG Ning(Collaborative Innovation Centre of Steel Technology,University of Science and Technology Beijing,Beijing 100083,China;Institute for Advanced Materials and Technology,University of Science and Technology Beijing,Beijing 100083,China;Advanced Technology&Materials Co.,Ltd.,Beijing 100081,China;Hua Hong Semiconductor Manufacturing(Wuxi)Co.,Ltd.,Wuxi 214000,China)

机构地区：[1]北京科技大学钢铁共性技术协同创新中心,北京100083 [2]北京科技大学新材料技术研究院,北京100083 [3]安泰科技股份有限公司,北京100081 [4]华虹半导体(无锡)有限公司,无锡214000

出　　处：《粉末冶金技术》2025年第1期52-60,共9页Powder Metallurgy Technology

基　　金：国家自然科学基金资助项目(U2141205,52371002);国家重点研发计划资助项目(2023YFE0200200,2023YFB3507200)。

摘　　要：热导率(导热系数)是数值模拟本构方程所需的重要材料热物性参数,现有热导率测量设备及方法无法实现难熔金属高温条件下热导率的测量。本文依据“PixelMapPaint”方法构建93W-Ni-Fe难熔金属热导率预测模型,对冷等静压成形的93W-Ni-Fe合金生坯烧结过程不同温度的热导率进行预测,并采用激光闪光法对热导率进行实验验证。结果表明:烧结温度在1100℃及以下时,有限元对93W-Ni-Fe热导率预测的准确性较高,预测结果与实验结果吻合较好,平均相对误差为±2.15%,表明利用有限元进行热导率预测方法的可靠性。在烧结温度高于1100℃时,实际测量已经失效,依据本文研究方法获得的热导率计算值可以作为样品热导率的参考值,弥补实验测量的不足。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 

分 类 号：TP311.5[自动化与计算机技术—计算机软件与理论] TG135[自动化与计算机技术—计算机科学与技术] TF123[一般工业技术—材料科学与工程]