Temperature Distribution of 7050 Alloy During Homogenization with Current

doi:10.12068/j.issn.1005-3026.2014.10.012

Abstract

Abstract: Influences of current， fan frequency， cooling water， auxiliary heating on the temperature distribution of 7050 alloy were investigated. When current is applied alone， the surface temperature and center temperature of sample are different significantly. When the current is 1 500 A， the center temperature reaches 402 ℃. The deviation between the center and surface temperatures is 79 ℃ when blowing air is used during the current heating process， and becomes less than ± 5 ℃ when the auxiliary heating is used. The mathematical model established by ANSYS was employed to predict the temperature field of the sample with size of 100 mm×200 mm×2000 mm. When the current is 16 000 A， the center temperature is 324 ℃， and the deviation between the center and surface temperatures is 1 ℃. The results provide the basis for designing the auxiliary heater. The dissolution of the residual grain boundary phases was accelerated when applying the current of 1000A during homogenization.

Key words: current, homogenization, 7050 alloy, heating parameters, temperature distribution

CLC Number:

TG33558

JIA Pinfeng， HE Lizi， ZHANG Haitao， CUI Jianzhong. Temperature Distribution of 7050 Alloy During Homogenization with Current[J]. Journal of Northeastern University Natural Science, 2014, 35(10): 1417-1421.

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