Analysis of Metallographic Characteristics of Aluminum Alloy for Turbocharged Impellers  

作　　者：Kaixuan Lang Xiangli Zhai Wanjun Sun Ning Liu Bing Sun Zhonggang Tang Kaixuan Lang;Xiangli Zhai;Wanjun Sun;Ning Liu;Bing Sun;Zhonggang Tang(Weichai Power Co., Ltd., Weifang, China)

机构地区：[1]Weichai Power Co., Ltd., Weifang, China

出　　处：《Journal of Materials Science and Chemical Engineering》2023年第12期46-53,共8页材料科学与化学工程（英文）

摘　　要：In this paper, the composition, two-dimensional and three-dimensional microstructure of heat-resistant wrought aluminum alloy with strong oxidation resistance, heat resistance and easy processing are analyzed by using direct reading spectrometer, metallographic microscope and scanning electron microscope. The main alloy elements of heat-resistant forging aluminum alloy include Cu, Mg, Si, Ni and Fe. The α solid solution of each element in aluminum consists of S phase (Al₂CuMg), Mg₂Si phase, bright gray Al₂CuNi phase and dark brown Al₉FeNi phase. The distribution of each phase in the aluminum alloy is determined by the three-dimensional energy spectrum analysis of the microstructure, and the distribution of each phase in the crystal position is analyzed. The mechanism of heat resistance, easy processing type and wear resistance is obtained, which provides the theoretical basis for the development and use of heat-resistant forged aluminum alloy.In this paper, the composition, two-dimensional and three-dimensional microstructure of heat-resistant wrought aluminum alloy with strong oxidation resistance, heat resistance and easy processing are analyzed by using direct reading spectrometer, metallographic microscope and scanning electron microscope. The main alloy elements of heat-resistant forging aluminum alloy include Cu, Mg, Si, Ni and Fe. The α solid solution of each element in aluminum consists of S phase (Al₂CuMg), Mg₂Si phase, bright gray Al₂CuNi phase and dark brown Al₉FeNi phase. The distribution of each phase in the aluminum alloy is determined by the three-dimensional energy spectrum analysis of the microstructure, and the distribution of each phase in the crystal position is analyzed. The mechanism of heat resistance, easy processing type and wear resistance is obtained, which provides the theoretical basis for the development and use of heat-resistant forged aluminum alloy.

关 键 词：High Heat Resistant Aluminum Alloy METALLOGRAPHY Electron Microscope Analysis 

分 类 号：TG1[金属学及工艺—金属学]