Email this article and Applied Mechanics
56, 4, pp. 1055-1068, Warsaw 2018
DOI: 10.15632/jtam-pl.56.4.1055
Monotonic behaviour of typical Al-Cu-Mg alloy pre-strained at elevated temperature
Al-Cu-Mg alloy (commercial 2024) specimens. Tensile tests carried out at room (20◦C)
and elevated (100◦C, 200◦C, 300◦C) temperatures made it possible to determine strength
properties of the material (Young’s modulus, yield stress, ultimate tensile strength). Creep
tests were performed at elevated temperature (100◦C, 200◦C and 300◦C) with a constant
force. In order to obtain material creep characteristics, creep-rupture tests were carried out.
Then creep tests were conducted with two different strain values: one corresponding to the
beginning of the secondary creep and the other corresponding to a certain value of the
tertiary creep. After preliminary creep deformation at two various strain levels, specimens
were cooled at ambient temperature and then subjected to monotonic tensile tests. The
characteristics of the material were obtained for pre-strained specimens at different tempe-
ratures. Specimens fracture surfaces obtained as a result of tensile (at elevated and room
temperature), creep and combined tests were analyzed.
References
Chakherlou T.N., Aghdam A.B., Akbari A., Saeedi K., 2010, Analysis of cold expanded
fastener holes subjected to short time creep: Finite element modelling and fatigue tests, Materials
and Design, 31, 2858-2866
Chen J.F., Zhen L., Jiang J.T., Yang L., ShaoW.Z., Zhang B.Y., 2012,Microstructures and
mechanical properties of age-formed 7050 aluminum alloy, Materials Science and Engineering: A, 539, 115-123
Derpenski L., Seweryn A., 2011, Experimental research into fracture of EN-AW 2024 and
EN-AW 2007 aluminum alloy specimens with notches subjected to tension, Experimental Mechanics, 51, 1075-1094
EN ISO 204, 2009, Metallic materials, uniaxial creep testing in tension: Method of test
EN ISO 6892-1, 2016,Metallic materials, tensile testing -Part 1:Method of test at room temperature
EN ISO 6892-2, 2011, Metallic materials, tensile testing -Part 2: Method of test at elevated tem-
perature
Guo W., Yang M., Zheng Y., Zhang X., Li H., Wen X., Zhang J., 2013, Influence of elastic
tensile stress on aging process in an Al-Zn-Mg-Cu alloy, Materials Letters, 106, 14-17
Haigen W., Fuzhong X., Mingpu W., 2017, Effect of ingot grain refinement on the tensile
properties of 2024 Al alloy sheets, Materials Science and Engineering: A, 682, 1-11
Ho K.C., Lin J., Dean T.A., 2004, Constitutive modelling of primary creep for age forming an
aluminium alloy, Journal of Materials Processing Technology, 153-154, 122-127
Karakas¸ ¨ O., Szusta J., 2016, Monotonic and low cycle fatigue behaviour of 2024-T3 aluminium
alloy between room temperature and 300◦C for designing VAWT components, Fatigue and Fracture
of Engineering Materials and Structure, 39, 95-109
Kowalewski Z.L., Szymczak T., Maciejewski J., 2014, Material effects during monotonic-
-cyclic loading, International Journal of Solids and Structures, 51, 740-753
Kumar P., LeBlanc J., Shukla A., 2011, Effect of curvature on shock loading response of
aluminum panels, [In:] Dynamic Behavior of Materials, Proulx T. (Ed.), Vol. 1, Springer, 369-374
Li C., Wan M., Wu X.-D., Huang L., 2010, Constitutive equations in creep of 7B04 aluminum
alloys, Materials Science and Engineering: A, 527, 3623-3629
Li L.-T., Lin Y.C., Zhou H.-M., Jiang Y.-Q., 2013, Modeling the high temperature creep be-
haviors of 7075 and 2124 aluminum alloys by continuum damage mechanics model, Computational
Materials Science, 73, 72-78
Lin Y.C., Jiang Y.-Q., Xia Y.-C., Zhang X.-C., Zhou H.-M., Deng J., 2014, Effects of
creep-aging processing on the corrosion resistance and mechanical properties of an Al-Cu-Mg alloy,
Materials Science and Engineering: A, 605, 192-202
Lin Y.C., Xia Y.-C., Chen M.-S., Jiang Y.-Q., Li L.T., 2013a, Modeling the creep behavior
of 2024-T3 Al alloy, Computational Materials Science, 67, 243-248
Lin Y.C., Xia Y.-C., Jiang Y.-Q., Zhou H.-M., Li L.-T., 2013b, Precipitation hardening of 2024-T3 aluminum alloy during creep aging, Materials Science and Engineering: A, 565, 420-429
Lumley R.N., Morton A.J., Polmear I.J., 2002, Enhanced creep performance in an
Al-Cu-Mg-Ag alloy through underageing, Acta Materialia, 50, 3597-3608
Naimi A., Yousfi H., Trari M., 2013, Influence of cold rolling degree and ageing treatments on
the precipitation hardening of 2024 and 7075 alloys, Mechanics of Time-Dependent Materials, 17, 285-296
Ro Y.J., Begley M.R., Gangloff R.P., Agnew S.R., 2006, Effect of aging on scale-dependent
plasticity in aluminum alloy 2024, Materials Science and Engineering: A, 435-436, 333-342
Singh A.K., Ghosh S., Mula S., 2016, Simultaneous improvement of strength, ductility and
corrosion resistance of Al2024 alloy processed by cryoforging followed by ageing, Materials Science
and Engineering: A, 651, 774-785
Szusta J., Seweryn A., 2017, Experimental study of the low-cycle fatigue life under multiaxial
loading of aluminum alloy EN AW-2024-T3 at elevated temperatures, International Journal of
Fatigue, 96, 28-42
Tomczyk A., Koniuszewski R., 2017, Construction of a System for Measuring Sample Elongations
at Elevated Temperatures Using Devices Intended for Work at Room Temperature (in Polish),
Patent No. PL 68955 Y1
Wang H., Yi Y., Huang S., 2016, Influence of pre-deformation and subsequent ageing on the
hardening behavior and microstructure of 2219 aluminum alloy forgings, Journal of Alloys and
Compounds, 685, 941-948
Wang Y.G., Jiang Z.G., Wang L.L., 2013, Dynamic tensile fracture behaviours of selected
aluminum alloys under various loading conditions, Strain, 49, 335-347
Yang Y., Zhan L., Ma Q., Feng J., Li X., 2016, Effect of pre-deformation on creep age forming
of AA2219 plate: Springback, microstructures and mechanical properties, Journal of Materials
Processing Technology, 229, 697-702
Yang Y., Zhan L., Shena R., Yin X., Li X., Li W., Huang M., He D., 2017, Effect of pre-
-deformation on creep age forming of 2219 aluminum alloy: Experimental and constitutive model-
ling, Materials Science and Engineering: A, 683, 227-235
Zhan L., Lin J., Dean T.A., Huang M., 2011, Experimental studies and constitutive modelling
of the hardening of aluminium alloy 7055 under creep age forming conditions, International Journal
of Mechanical Sciences, 53, 595-605
Zhang J., Deng Y., Zhang X., 2013, Constitutive modeling for creep age forming of heat-
-treatable strengthening aluminum alloys containing plate or rod shaped precipitates, Materials
Science and Engineering: A, 563, 8-15
Zhao Y.L., Yang Z.Q., Zhang Z., Su G.Y., Ma X.L., 2013, Double-peak age strengthening
of cold-worked 2024 aluminum alloy, Acta Materialia, 61, 1624-1638