Detail publikačního výsledku

On the relationship between {1 1 2¯ 2} and {1 1 2¯ 6} conjugate twins and double extension twins in rolled pure Mg

OSTAPOVETS, A.; BURŠÍK, J.; KRAHULA, K.; KRÁL, L.

Originální název

On the relationship between {1 1 2¯ 2} and {1 1 2¯ 6} conjugate twins and double extension twins in rolled pure Mg

Anglický název

On the relationship between {1 1 2¯ 2} and {1 1 2¯ 6} conjugate twins and double extension twins in rolled pure Mg

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

The paper presents a new type of twin-like objects observed in rolled pure magnesium. They have and habit planes and their misorientations to the matrix are close to 56° and 63° about axis, respectively. The ad hoc performed theoretical analysis and atomic simulations allow to interpret the objects as double twins formed by the simultaneous action of two twinning shears with completely re-twinned volume of primary twin. The observed inclinations from the ideal misorientations for such double twins can be explained by the compliance of the strain invariant condition in the twin boundary. It seems plausible that, once the double twin is formed, its twin boundaries are hard to move by glide of twinning disconnections. If so, these twins represent obstacles for the motion of crystal dislocations increasing the hardness of the metal.

Anglický abstrakt

The paper presents a new type of twin-like objects observed in rolled pure magnesium. They have and habit planes and their misorientations to the matrix are close to 56° and 63° about axis, respectively. The ad hoc performed theoretical analysis and atomic simulations allow to interpret the objects as double twins formed by the simultaneous action of two twinning shears with completely re-twinned volume of primary twin. The observed inclinations from the ideal misorientations for such double twins can be explained by the compliance of the strain invariant condition in the twin boundary. It seems plausible that, once the double twin is formed, its twin boundaries are hard to move by glide of twinning disconnections. If so, these twins represent obstacles for the motion of crystal dislocations increasing the hardness of the metal.

Klíčová slova

Magnesium, twinning, grain boundaries, plastic deformation, habit plane

Klíčová slova v angličtině

Magnesium, twinning, grain boundaries, plastic deformation, habit plane

Autoři

OSTAPOVETS, A.; BURŠÍK, J.; KRAHULA, K.; KRÁL, L.

Rok RIV

2018

Vydáno

28.02.2017

ISSN

1478-6443

Periodikum

PHILOSOPHICAL MAGAZINE

Svazek

97

Číslo

14

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1188

Strany do

1101

Strany počet

14

BibTex

@article{BUT134742,
  author="Andriy {Ostapovets} and Jiří {Buršík} and Karel {Krahula} and Lubomír {Král}",
  title="On the relationship between {1 1 2¯ 2} and {1 1 2¯ 6} conjugate twins and double extension twins in rolled pure Mg",
  journal="PHILOSOPHICAL MAGAZINE",
  year="2017",
  volume="97",
  number="14",
  pages="1188--1101",
  issn="1478-6435"
}