Initiation of basal slip and tensile twinning in magnesium alloys during nanoindentation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F18%3A00491356" target="_blank" >RIV/68081723:_____/18:00491356 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.jallcom.2017.10.088" target="_blank" >http://dx.doi.org/10.1016/j.jallcom.2017.10.088</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jallcom.2017.10.088" target="_blank" >10.1016/j.jallcom.2017.10.088</a>

Result language

angličtina

Original language name

Initiation of basal slip and tensile twinning in magnesium alloys during nanoindentation

Original language description

The present study addresses the challenge of determining the stress required for the initiation of deformation modes in Mg alloys. Nanoindentation is employed to detect the onset of basal slip and tensile twinning. A Mg-6 wt. % Zn alloy and a series of Mg-Gd binary alloys with concentrations between 0.3 and 4 wt. % Gd are examined in the extruded state. Nanoindentation tests were conducted on {10 (1) over bar0} and {11 (2) over bar0} crystal planes using a 5 mu m radius spherical indenter. It is shown that the initial yielding point in the load trace corresponds to the appearance of basal slip lines on the sample surface. A pop-in event is seen to accompany the appearance of twinning. We find that the addition of Zn strengthens the basal slip but shows mild influence on twin initiation. For alloying with Gd, an impact on basal slip and twinning is only seen at the highest solute levels. A means of examining the alloying effect on twin growth is proposed and revealed that solute Zn has a greater impact on twin growth than initiation. Crown Copyright (C) 2017 Published by Elsevier B.V. All rights reserved.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Alloys and Compounds

ISSN

0925-8388

e-ISSN

—

Volume of the periodical

731

Issue of the periodical within the volume

JAN

Country of publishing house

CH - SWITZERLAND

Number of pages

11

Pages from-to

620-630

UT code for WoS article

000415930900083

EID of the result in the Scopus database

2-s2.0-85031296522