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al-mg-si-re he jin de cui huo min gan xing yan jiu
Author(s): 
Pages: 43-47
Year: Issue:  2
Journal: Materials Science and Technology

Keyword:  Quenching sensitivitycritical cooling velocityextrusion quenching;
Abstract: The effect of hot deformation of the isothermal precipitation kinetics of Mg_2Si and the quenching sensitivity in Al-Mg-Si alloy treated by rare earth elements was investigated. It has been found that hot defomation accelerates Mg_2Si precipitation in the alloy remarkably. The age-hardening ability of the alloy quenched directly after hot working is sensitive to its cooling velocity. To obtain a fine and dispersive GP-zone the water temperature for quenching after hot working should not be higher than 50℃.
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