TITLE:
Analysis of Metallographic Characteristics of Aluminum Alloy for Turbocharged Impellers
AUTHORS:
Kaixuan Lang, Xiangli Zhai, Wanjun Sun, Ning Liu, Bing Sun, Zhonggang Tang
KEYWORDS:
High Heat Resistant Aluminum Alloy, Metallography, Electron Microscope Analysis
JOURNAL NAME:
Journal of Materials Science and Chemical Engineering,
Vol.11 No.12,
December
29,
2023
ABSTRACT: 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.