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近年来,人们对采用重复淬火处理来改善铝合金组织和性能的研究兴趣大增。正在研究挤压变形条件和挤压制品冷却强度对重复淬火处理后合金性能的影响,也包括重复淬火并高温时效的情况。以固定变形条件来研究复杂断面型材的两个断面区的情况(见图)。Ⅰ区的特点是翼厚度
In recent years, there has been a great deal of interest in using repeated quenching to improve the microstructure and properties of aluminum alloys. The effects of extrusion deformation conditions and the cooling strength of the extruded product on the properties of the alloy after repeated quenching are also being investigated, including the case of repeated quenching and aging at elevated temperatures. The condition of two cross-sectional areas of complex cross-section profiles was studied with fixed deformation conditions (see figure). Zone I is characterized by wing thickness