Twinning effects on the hot deformation behavior of AZ31 Mg alloy

Twinning effects on the hot deformation behavior of AZ31 Mg alloy
复制标题

孪晶对AZ31镁合金热变形行为的影响

DOI:
10.1016/j.matchar.2016.06.014
复制
发表时间:
2016-08
影响因子:
4.7
通讯作者:
Wang, Fenghua
Wang, Fenghua
中科院分区:
材料科学1区
文献类型:
--
作者:
Jin, Li;Dong, Jie;Zhang, Zhenyan;Wang, Fenghua

文献摘要

参考文献

被引文献

相似文献

孪晶在AZ 31镁合金动态再结晶过程中起着重要作用。为了评估孪晶的影响和潜在机制,我们研究了在250 °C和0.001/s的应变速率下单轴压缩的预压缩拉伸孪晶(ET)和收缩孪晶(CT)样品的微观结构和织构演变。结果表明,CT试样的收缩孪晶界或双孪晶界是动态再结晶晶粒的有利形核位置,而ET试样的伸展孪晶界则是动态再结晶晶粒的有利形核位置。基于热变形后ET和CT样品中的不同织构,我们证明了预先存在的孪晶可以极大地影响DRX晶粒的晶粒取向,例如在CT样品中,DRX晶粒在热变形后表现出新的取向。
Twinning plays an important role in the dynamic recrystallization (DRX) of AZ31 magnesium alloy. To evaluate the effect and the underlying mechanism of twinning, we studied the microstructure and texture evolution of pre-compressed extension twin (ET) and contraction twin (CT) samples under uniaxial compression at 250 °C at a strain rate of 0.001/s. The results suggested that favorable nucleation sites for DRX grains were contraction or double twin boundaries of CT sample rather than extension twin boundaries of ET sample. Based on the different textures in ET and CT samples after hot deformation, we demonstrate that the pre-existing twins can greatly affect the grain orientations of DRX grains such as in the case of CT sample where DRX grains exhibited new orientations after hot deformation.
DOI: 10.1016/j.jallcom.2014.07.045
发表时间: 2014-12
影响因子: 6.2
作者:
Hans Jørgen Roven;Weili Cheng;Bingshe Xu;Hongbiao Dong
通讯作者: Hongbiao Dong
DOI: 10.1016/s1359-6454(01)00300-7
发表时间: 2001-11-14
期刊: ACTA MATERIALIA
影响因子: 9.4
作者:
Meyers, MA;Vöhringer, O;Lubarda, VA
通讯作者: Lubarda, VA
DOI: 10.1016/j.matdes.2013.03.028
发表时间: 2013-09
期刊: Materials & Design
影响因子: 8.4
作者:
Nali Li;G. Huang;X. Zhong;Qing Liu
通讯作者: Nali Li;G. Huang;X. Zhong;Qing Liu
DOI: 10.1016/j.actamat.2013.06.037
发表时间: 2013-09-01
期刊: ACTA MATERIALIA
影响因子: 9.4
作者:
Levinson, Amanda;Mishra, Raja K.;Kalidindi, Surya R.
通讯作者: Kalidindi, Surya R.
DOI: 10.1016/j.msea.2012.07.054
发表时间: 2012-12-15
影响因子: 6.4
作者:
Changizian, P.;Zarei-Hanzaki, A.;Abedi, H. R.
通讯作者: Abedi, H. R.