TY - JOUR

T1 - Influence of Mg and Cu on the dynamic yield stress of aluminium alloys

AU - Selyutina, N.S.

N1 - Selyutina N.S. Influence of Mg and Cu on the dynamic yield stress of aluminium alloys // Materials Physics and Mechanics. 2021, V. 47. N. 3. P. 408-415. DOI: 10.18149/MPM.4732021_2.

PY - 2021

Y1 - 2021

N2 - Based on the temperature relaxation model of plasticity, the effects of the irreversible deformation of metals that appear under conditions of various temperature and strain rate regimes are studied. The appearance of the yield drop on the dynamic deformation dependence for 2519А aluminium alloys at a temperature of -45°C in the range of strain rates 1000–4000 s–1 is predicted. Dynamic dependencies for Al-13Mg aluminium alloys at temperatures 325°C and 425°C are constructed. The temperature relaxation model of plasticity applied is able to predict various types of deformation curves for on one material in a wide range of strain rates and temperatures.

AB - Based on the temperature relaxation model of plasticity, the effects of the irreversible deformation of metals that appear under conditions of various temperature and strain rate regimes are studied. The appearance of the yield drop on the dynamic deformation dependence for 2519А aluminium alloys at a temperature of -45°C in the range of strain rates 1000–4000 s–1 is predicted. Dynamic dependencies for Al-13Mg aluminium alloys at temperatures 325°C and 425°C are constructed. The temperature relaxation model of plasticity applied is able to predict various types of deformation curves for on one material in a wide range of strain rates and temperatures.

KW - relaxation model of plasticity

KW - aluminium alloys

KW - Yield drop

UR - https://mpm.spbstu.ru/article/2021.82.2/

M3 - Article

VL - 47

SP - 408

EP - 415

JO - ФИЗИКА И МЕХАНИКА МАТЕРИАЛОВ

JF - ФИЗИКА И МЕХАНИКА МАТЕРИАЛОВ

SN - 1605-8119

IS - 3

ER -