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According to recent research in the journal Materials, the mechanical and thermal properties of iron-rich Al-Si alloys are associated with the presence of a large amount of the iron-rich phase (-Al5FeSi), whose unfavorable physiology not only separates the matrix but also induces tensile stress and interface incompatibility with the Al matrix.
Weight reduction is a major trend in the development of automotive, marine, and aerospace industry. Al alloys are the ideal choice for the lightweight design because of their superior mechanical properties and small mass density. In recent years, research results have demonstrated that plastic processing at cryogenic temperature can improve the mechanical properties of Al alloys. Herein, the mechanical properties of Al alloys at cryogenic environment as well as at room temperature are compared, and then the main progress is introduced in the development of fabrication of high-performance Al al...