Beta '-phase precipitation regulation and recrystallization inhibition method for spray-formed 2195 aluminum alloy

• Main Authors: LIU QING, JIA ZHIHONG, DING LIPENG, HUANG YUNJIA
• Format: Patent
• Language: Chinese; English
• Published: 21.10.2022
• Subjects: CASTING; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING METALLIC POWDER

The invention belongs to the field of aluminum alloy processing and manufacturing, and discloses a beta '-phase precipitation regulation and recrystallization inhibition method for spray-formed 2195 aluminum alloy, which comprises the following steps: preparing raw materials according to alloy element composition of the 2195 aluminum alloy, and casting an ingot blank by adopting a rapid solidification spray forming process; the method comprises the following steps: extruding and cogging a jet-state ingot blank, then sequentially carrying out two-stage homogenization, high-temperature rolling, solid solution heat treatment and artificial aging treatment, adding quenching cooling in each process after extrusion, and ensuring that the quenching transfer time does not exceed 5S. According to the method, the T1 phase is crushed through hot extrusion deformation and remelted to the matrix, then treatment such as bipolar homogenization is carried out, the precipitated beta'phase is regulated and controlled to be in