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CHEN Guoliang, CHEN Minghe, WANG Chunyan, WANG Ning, SUN Jiawei. Microstructure and Tensile Properties of AA2024 Aluminum Alloy after Hot Forming with Synchronous Cooling and Aging[J]. Materials and Mechanical Engineering, 2019, 43(12): 57-61. DOI: 10.11973/jxgccl201912011
Citation: CHEN Guoliang, CHEN Minghe, WANG Chunyan, WANG Ning, SUN Jiawei. Microstructure and Tensile Properties of AA2024 Aluminum Alloy after Hot Forming with Synchronous Cooling and Aging[J]. Materials and Mechanical Engineering, 2019, 43(12): 57-61. DOI: 10.11973/jxgccl201912011
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Microstructure and Tensile Properties of AA2024 Aluminum Alloy after Hot Forming with Synchronous Cooling and Aging

  • 1. Changzhou Institute of Mechatronic Technology, Changzhou 213164, China;

  • 2. College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

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  • Received Date: June 30, 2019
  • Revised Date: October 14, 2019
    Graphical Abstract
    • Abstract
  • AA2024-H18 aluminum alloy sheet was hot formed at 435-505℃ with synchronous cooling, and then aged at 150-230℃ for 4-12 h. The microstructure and mechanical properties after aging were studied. The results show that the main strengthening phase in the test alloy after hot forming with synchronous cooling and aging was Al2CuMg. The size and quantity of Al2CuMg phase increased with the aging temperature, however, the aging time had little effect on Al2CuMg phase. The tensile strength and yield strength of the test alloy increased with the increase of the forming temperature, and increased first and then decreased with the increase of the aging temperature. When the forming temperature was not higher than 475℃, the tensile strength and yield strength of the test alloy increased first and then decreased, and reached peak values when aging for 8 h. When the forming temperature was higher than 475℃, the aging time had little influence on the strength of the alloy.
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    • References (16)
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