Temperature-dependent constitutive behavior with consideration of microstructure evolution for as-quenched Al-Cu-Mn alloy

Wang, Wenguang1; Wang, Gang1; Hu, Yisen1; Guo, Guannan2; Zhou, Tingting3; Rong, Yiming4

2016-12-15

10.1016/j.msea.2016.09.090

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING   影响因子和分区

0921-5093

1873-4936

It is difficult to predict the deformation behavior of Al-Cu-Mn alloy during a quenching process due to the complex hardening mechanisms. In this paper, isothermal tensile tests were conducted under controlled experimental conditions (298-773 K and 0.001-0.1/s strain rate). Observations on the microstructure of the alloy and tensile test analyses on stress-strain curves both verified that the deformation mechanisms differed drastically at 298-473 K and 573-773 K. Therefore, a temperature-dependent constitutive model was established to characterize the divergent flow behaviors of as-quenched Al-Cu-Mn alloy. In addition, the activation energy, Q, in the model is determined by the combined effect of dislocation forests and precipitate phases, various with different experimental conditions.

As-quenched Al-Cu-Mn alloy Precipitation Dislocation forest Arrhenius model Activation energy

SCI ; EI

英语

其他

National Natural Science Foundation of China[U1537202]

Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering

WOS:000387633200009

ELSEVIER SCIENCE SA

20164002873497

Activation energy ; Aluminum alloys ; Copper alloys ; Deformation ; Forestry ; Microstructure ; Precipitation (chemical) ; Strain rate ; Stress-strain curves ; Tensile testing ; Ternary alloys

Aluminum Alloys:541.2 ; Manganese and Alloys:543.2 ; Copper Alloys:544.2 ; Chemical Operations:802.3 ; Materials Science:951

MATERIALS SCIENCE

Web of Science

1.Tsinghua Univ, State Key Lab Tribol, Lee Shau Kee S&T Bldg,A1003-3, Beijing 100084, Peoples R China
2.Worcester Polytech Inst, Dept Mfg Engn, Worcester, MA 01609 USA
3.Sci & Technol Surface Phys & Chem Lab, Jiangyou 621908, Peoples R China
4.Southern Univ Sci & Technol China, Mech & Energy Engn Dept, Shenzhen 518055, Peoples R China

Wang, Wenguang,Wang, Gang,Hu, Yisen,et al. Temperature-dependent constitutive behavior with consideration of microstructure evolution for as-quenched Al-Cu-Mn alloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2016,678:85-92.

Wang, Wenguang,Wang, Gang,Hu, Yisen,Guo, Guannan,Zhou, Tingting,&Rong, Yiming.(2016).Temperature-dependent constitutive behavior with consideration of microstructure evolution for as-quenched Al-Cu-Mn alloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,678,85-92.

Wang, Wenguang,et al."Temperature-dependent constitutive behavior with consideration of microstructure evolution for as-quenched Al-Cu-Mn alloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 678(2016):85-92.