Effect of cold rolling deformation on the microstructure and mechanical properties of spray-formed Al–Zn–Mg–Cu alloy
Source abstract
Abstract
The effect of cold rolling deformation on the microstructure and mechanical properties of the spray-formed plus extruded Al–9.8Zn–2.3Mg–1.7Cu alloy is investigated. The results indicate that the percentage of sub-grain in the samples induced cold rolling deformation (solution + cold rolling + aging) increased from 33 to 66%, while the average grain size decreased from 4.76 to 4.37 μm, as compared to the solution-aging treated samples. In addition, the precipitates are finer and more dispersive in the cold rolling deformation treated samples. The dispersed precipitates restrict the dislocation movement and improve the uniformity of dislocation distribution. Furthermore, compared to the solution-aging treatment, the cold rolling deformation makes the tensile strength, yield strength, and elongation of the samples reach a new high of 709 MPa, 683 MPa, and 13.2%, respectively. Fine grain strengthening, dislocation strengthening, and precipitation strengthening are the primary strengthening mechanisms in the alloy.Graphical abstract
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Aluminum Alloy Microstructure Properties · Aluminum Alloys Composites Properties · Microstructure and mechanical properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (29)
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