Investigation of mechanical properties of advanced Al–Zn–Mg–Cu alloy
作者:
DaviesC. H. J.,
RaghunathanN.,
SheppardT.,
期刊:
Materials Science and Technology
(Taylor Available online 1992)
卷期:
Volume 8,
issue 10
页码: 862-868
ISSN:0267-0836
年代: 1992
DOI:10.1179/mst.1992.8.10.862
出版商: Taylor&Francis
数据来源: Taylor
摘要:
AbstractThe mechanical properties of the rapidly solidified 7000 series powder alloy CW 67 were investigated for various extrusion and heat treatment conditions. The principal aim of the work was to ascertain the optimum processing route for peak aged (T6) material. The highest proof stress in the T6 condition was found to be 572 MN m−2for material extruded at 325°C and aged for 13·5 h at 120°C after solutionising. The ductility of this material was found to be 13·5%. The fracture toughness was measured in two orientations and found to be approximately 21 MN m−3/2in the short transverse direction and 44 MN m−3/2in the longitudinal direction. Degassing and hot compaction was found to improve the fracture toughness of the material substantially.MST/1504
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