Effect of grain size on the fracture toughness and strength of alloy AK4-1ch

Previously abstracted from original as item 8311-6.1-0535Y. The maximum tensile strength of extruded semifabricated components of AK4-1ch Al alloy after aging heat treatment varies with grain size. Coarse-grain components have a tensile strength that is 10-20 MPa lower than fine-grain components. Ho...

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Bibliographic Details
Published in:Metal science and heat treatment 1983-07, Vol.25 (7), p.508-515
Main Authors: Teleshov, V. V., Shtovba, Yu. K., Smolentsev, V. I., Sirotkina, O. M.
Format: Article
Language:English
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Summary:Previously abstracted from original as item 8311-6.1-0535Y. The maximum tensile strength of extruded semifabricated components of AK4-1ch Al alloy after aging heat treatment varies with grain size. Coarse-grain components have a tensile strength that is 10-20 MPa lower than fine-grain components. However, fatigue life in rotating bending was independent of grain size. The fracture toughness KIc of coarser grain material was higher than that of finer grain material due to the increase in plastic deformation of the coarser grain volume during metallurgical processing. 14 ref.--X-ref.
ISSN:0026-0673
1573-8973
DOI:10.1007/BF00741939