水霧化Inconel713C喂料流變性能的研究
發(fā)布時間：2018-12-27 16:06
【摘要】：以水霧化法制備的Inconel713C合金粉末為原料,利用ZRZ1452型熔體流動速率儀,研究了三種塑基粘結(jié)劑體系和Inconel713C合金粉末混合制備的喂料的流變性能。通過線性回歸分析,計算出非牛頓指數(shù)n和τ_w-γ_w近似關(guān)系式。結(jié)果表明:在52%裝載量下,三種組分喂料的粘度均隨溫度的升高以及剪切速率的增大而減小。粘結(jié)劑組成為85%POM+5%HDPE+10%其他助劑的喂料(D1)具有最好的充模性,呈假塑性流體。喂料D1的粘度與溫度關(guān)系更好地符合Arrhenius定律,隨剪切速率的增加,粘流活化能降低,而指前因子增大。
[Abstract]:The rheological properties of three kinds of plastic-based binder and Inconel713C alloy powder were studied by using ZRZ1452 melt flow rate meter and Inconel713C alloy powder prepared by water atomization method as raw material. By linear regression analysis, the approximate relations of non-Newtonian exponent n and 蟿 _ w- 緯 _ w are calculated. The results showed that the viscosity of the three fractions decreased with the increase of temperature and shear rate at 52% loading. The feed (D1) with 10% 85%POM 5%HDPE as binder has the best filling property and is pseudoplastic fluid. The relationship between viscosity and temperature of feed D1 obeys Arrhenius's law better. With the increase of shear rate, the activation energy of viscous flow decreases and the preexponential factor increases.
【作者單位】： 昆明理工大學材料科學與工程學院;廣州有色金屬研究院;
【基金】：廣東省科技計劃資助項目(2013B010403019)
【分類號】：TG146.15
本文編號：2393294
[Abstract]:The rheological properties of three kinds of plastic-based binder and Inconel713C alloy powder were studied by using ZRZ1452 melt flow rate meter and Inconel713C alloy powder prepared by water atomization method as raw material. By linear regression analysis, the approximate relations of non-Newtonian exponent n and 蟿 _ w- 緯 _ w are calculated. The results showed that the viscosity of the three fractions decreased with the increase of temperature and shear rate at 52% loading. The feed (D1) with 10% 85%POM 5%HDPE as binder has the best filling property and is pseudoplastic fluid. The relationship between viscosity and temperature of feed D1 obeys Arrhenius's law better. With the increase of shear rate, the activation energy of viscous flow decreases and the preexponential factor increases.
【作者單位】： 昆明理工大學材料科學與工程學院;廣州有色金屬研究院;
【基金】：廣東省科技計劃資助項目(2013B010403019)
【分類號】：TG146.15
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