Isothermal compression tests were conducted to predict the hot deformational flow stress behaviour of 2024AI-T3 alloy with respect to a wide range of strain rates （0.001-100 s l）, strains （0.1-0.5） and temperatur...Isothermal compression tests were conducted to predict the hot deformational flow stress behaviour of 2024AI-T3 alloy with respect to a wide range of strain rates （0.001-100 s l）, strains （0.1-0.5） and temperatures （573-773 K）. The prediction capabilities of various constitutive models for 2024A1 alloys and a recently developed constitutive model were evaluated using statistical parameters such as the average absolute relative error （AARE） and the correlation coefficient （R）. Models recorded the lowest AARE （4.6%） and the highest correlation coefficient （R=0.99） were developed compared with the other models. Hence, this model can track the deformational behaviour of 2027Al-T3 alloy more accurately compared with other models throughout the entire processing domain investigated.展开更多
文摘Isothermal compression tests were conducted to predict the hot deformational flow stress behaviour of 2024AI-T3 alloy with respect to a wide range of strain rates （0.001-100 s l）, strains （0.1-0.5） and temperatures （573-773 K）. The prediction capabilities of various constitutive models for 2024A1 alloys and a recently developed constitutive model were evaluated using statistical parameters such as the average absolute relative error （AARE） and the correlation coefficient （R）. Models recorded the lowest AARE （4.6%） and the highest correlation coefficient （R=0.99） were developed compared with the other models. Hence, this model can track the deformational behaviour of 2027Al-T3 alloy more accurately compared with other models throughout the entire processing domain investigated.
