Journal
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
Volume 245, Issue -, Pages 1-6Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jmatprotec.2017.02.005
Keywords
Squeeze casting; AA2024 aluminum alloy; Microstructure; Grain refinement; Hardness
Ask authors/readers for more resources
The effect of pressure and pouring temperature on the microstructure, porosity, hardness and yield stress of AA2024 aluminum alloy during squeeze casting process was investigated. At a constant pouring temperature (700 degrees C), by increasing the applied pressure up to 140 MPa, the hardness increased from 125 HBN to 152 HBN while the yield stress increased from 235 MPa to 340. Moreover, by increasing the applied pressure (to 140 MPa) and reducing the pouring temperature (at 700 degrees C), the DAS size and the porosity diameter decreased to 12.5 and 0.25 p.m, respectively. Thus, the density increased to 2.75 (g/cm(3)). At a pressure of 140 MPa and 700 degrees C, an ultra-fine grain structure with an average grain size of 80 nm was observed. At squeezing pressures greater than 70 MPa, the effect of pouring temperature was less important. (C) 2017 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available