Effect of Cu, Zn, and Mg Concentration on Heat Treating Behavior of Squeeze Cast Al-(10 to 12)Zn-(3.0 to 3.4)Mg-(0.8 to 1)Cu

Aluminum Alloy AA-7034 is a high strength wrought alloy with reasonable ductility containing 10–12 wt% Zn, 2–3 wt% Mg, and 0.8–1.2 wt% Cu. This work investigates the effect of varying the concentration of Zn (10–12 wt%) and Cu (0.8–1 wt%) on the solutionizing and aging behavior of squeeze cast AA-70...

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Main Authors: J.B. Ferguson, Benjamin F. Schultz, John C. Mantas, Hassan Shokouhi, Pradeep K. Rohatgi
Format: Article
Language:English
Published: MDPI AG 2014-06-01
Series:Metals
Subjects:
Online Access:http://www.mdpi.com/2075-4701/4/3/314
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author J.B. Ferguson
Benjamin F. Schultz
John C. Mantas
Hassan Shokouhi
Pradeep K. Rohatgi
author_facet J.B. Ferguson
Benjamin F. Schultz
John C. Mantas
Hassan Shokouhi
Pradeep K. Rohatgi
author_sort J.B. Ferguson
collection DOAJ
description Aluminum Alloy AA-7034 is a high strength wrought alloy with reasonable ductility containing 10–12 wt% Zn, 2–3 wt% Mg, and 0.8–1.2 wt% Cu. This work investigates the effect of varying the concentration of Zn (10–12 wt%) and Cu (0.8–1 wt%) on the solutionizing and aging behavior of squeeze cast AA-7034 samples. The same behaviors were investigated when Mg content was increased beyond 3 wt%. The solutionizing heat treatment dissolved much of the macroscopic second phases present in the as-cast AA-7034 alloys, but a significant amount of second phases remain after solutionizing in alloys with >3 wt% Mg. The behaviors of the various Al-Zn-Mg-Cu alloys are compared to squeeze cast Al-A206 casting alloy heat-treated to the T7 condition. All Al-Zn-Mg-Cu alloys obtained higher hardness values than those obtained by Al-A206-T7.
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spelling doaj.art-5f4dca59580e4e8e80748e4dbae24fb92022-12-22T00:21:13ZengMDPI AGMetals2075-47012014-06-014331432110.3390/met4030314met4030314Effect of Cu, Zn, and Mg Concentration on Heat Treating Behavior of Squeeze Cast Al-(10 to 12)Zn-(3.0 to 3.4)Mg-(0.8 to 1)CuJ.B. Ferguson0Benjamin F. Schultz1John C. Mantas2Hassan Shokouhi3Pradeep K. Rohatgi4Materials Science and Engineering Department, University of Wisconsin-Milwaukee, 3200 N. Cramer St. Milwaukee, WI 53211, USAMaterials Science and Engineering Department, University of Wisconsin-Milwaukee, 3200 N. Cramer St. Milwaukee, WI 53211, USAMaterials Science and Engineering Department, University of Wisconsin-Milwaukee, 3200 N. Cramer St. Milwaukee, WI 53211, USAMaterials Science and Engineering Department, University of Wisconsin-Milwaukee, 3200 N. Cramer St. Milwaukee, WI 53211, USAMaterials Science and Engineering Department, University of Wisconsin-Milwaukee, 3200 N. Cramer St. Milwaukee, WI 53211, USAAluminum Alloy AA-7034 is a high strength wrought alloy with reasonable ductility containing 10–12 wt% Zn, 2–3 wt% Mg, and 0.8–1.2 wt% Cu. This work investigates the effect of varying the concentration of Zn (10–12 wt%) and Cu (0.8–1 wt%) on the solutionizing and aging behavior of squeeze cast AA-7034 samples. The same behaviors were investigated when Mg content was increased beyond 3 wt%. The solutionizing heat treatment dissolved much of the macroscopic second phases present in the as-cast AA-7034 alloys, but a significant amount of second phases remain after solutionizing in alloys with >3 wt% Mg. The behaviors of the various Al-Zn-Mg-Cu alloys are compared to squeeze cast Al-A206 casting alloy heat-treated to the T7 condition. All Al-Zn-Mg-Cu alloys obtained higher hardness values than those obtained by Al-A206-T7.http://www.mdpi.com/2075-4701/4/3/314Al-Zn-Mg-Cu alloysmechanical propertiesheat treatment
spellingShingle J.B. Ferguson
Benjamin F. Schultz
John C. Mantas
Hassan Shokouhi
Pradeep K. Rohatgi
Effect of Cu, Zn, and Mg Concentration on Heat Treating Behavior of Squeeze Cast Al-(10 to 12)Zn-(3.0 to 3.4)Mg-(0.8 to 1)Cu
Metals
Al-Zn-Mg-Cu alloys
mechanical properties
heat treatment
title Effect of Cu, Zn, and Mg Concentration on Heat Treating Behavior of Squeeze Cast Al-(10 to 12)Zn-(3.0 to 3.4)Mg-(0.8 to 1)Cu
title_full Effect of Cu, Zn, and Mg Concentration on Heat Treating Behavior of Squeeze Cast Al-(10 to 12)Zn-(3.0 to 3.4)Mg-(0.8 to 1)Cu
title_fullStr Effect of Cu, Zn, and Mg Concentration on Heat Treating Behavior of Squeeze Cast Al-(10 to 12)Zn-(3.0 to 3.4)Mg-(0.8 to 1)Cu
title_full_unstemmed Effect of Cu, Zn, and Mg Concentration on Heat Treating Behavior of Squeeze Cast Al-(10 to 12)Zn-(3.0 to 3.4)Mg-(0.8 to 1)Cu
title_short Effect of Cu, Zn, and Mg Concentration on Heat Treating Behavior of Squeeze Cast Al-(10 to 12)Zn-(3.0 to 3.4)Mg-(0.8 to 1)Cu
title_sort effect of cu zn and mg concentration on heat treating behavior of squeeze cast al 10 to 12 zn 3 0 to 3 4 mg 0 8 to 1 cu
topic Al-Zn-Mg-Cu alloys
mechanical properties
heat treatment
url http://www.mdpi.com/2075-4701/4/3/314
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