Hot-compression behavior of Al-1Mn-1Mg alloy

来源期刊：中南大学学报(英文版)2010年第3期

论文作者：张新明 徐敏 唐建国 欧军

文章页码：425 - 430

Key words：Al-1Mn-1Mg alloy; hot-compression; dynamic recovery; dynamic recrystallization; texture

Abstract: The hot-compression of Al-1Mn-1Mg (mass fraction, %) alloy sample was carried out on a Gleeble-1500 thermo-simulator at deformation temperatures from 320 to 400 ℃ and strain rates from 0.1 to 10 s^-1 by total strain of 1.4. Microstructure and texture evolution of the hot-compressed alloy were investigated by optical microscopy and X-ray diffraction analysis, respectively. The results show that the relationship among flow stress σ, deformation temperature T and strain rate can be expressed in the form of ln A. The threshold value of ln Z (Z is Zener-Hollomon parameter) characterizing the dynamic recrystallization (DRX) is 46, below which the DRX takes place. A strong P orientation {011}<455>associated with a weak cube orientation {100}<001> is found in the recrystallized sample during hot-compression.

基金信息：National Science and Technology Pillar Program