Open AccessEffect of Heat Treatment on Microstructure and Dimensional Stability of Y-Modified AlSi7Cu3Mg Alloy
Author(s) -
Yanzhu Jin,
Yulai Song,
Yaohui Liu,
Chi Sun,
Junfeng Dai
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2101/1/012072
Subject(s) - alloy , microstructure , materials science , yttrium , thermal stability , casing , stability (learning theory) , metallurgy , heat stability , composite material , mechanical engineering , chemical engineering , engineering , computer science , machine learning , oxide
The application of rare earth modified AlSi7Cu3Mg alloy in automobile engine and motor casing has increased. The dimensional stability of this alloy is an important feature. In this paper, the effects of yttrium addition and different heat treatment on the microstructure and dimensional thermal stability of AlSi7Cu3Mg alloy were studied by OM, SEM and dimensional measurement. Research shows that: The dimensional stability of AiSi7Cu3Mg alloy after T6 heat treatment is better than that after T4 heat treatment, and the dimensional stability after T7 heat treatment is the best. The addition of rare earth Y can improve the dimensional stability of AiSi7Cu3Mg alloy.