Orthorhombic intermediate phase originating from {110} nanotwinning in Ni50.0Mn28.7Ga21.3 modulated martensite

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00487131" target="_blank" >RIV/68378271:_____/17:00487131 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388998:_____/17:00487131 RIV/68407700:21340/17:00316806 RIV/00216208:11320/17:10370887 RIV/00216305:26210/17:PU123525

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.actamat.2017.04.048" target="_blank" >http://dx.doi.org/10.1016/j.actamat.2017.04.048</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.actamat.2017.04.048" target="_blank" >10.1016/j.actamat.2017.04.048</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Orthorhombic intermediate phase originating from {110} nanotwinning in Ni50.0Mn28.7Ga21.3 modulated martensite

Popis výsledku v původním jazyce

The temperature evolution of the structure of Ni50.0Mn28.7Ga21.3, single crystals exhibiting magnetic shape memory effect was investigated near the martensitic transformation by X-ray diffraction. Upon heating, five-layered modulated monoclinic martensite (10M) with a = 0.5974 nm, b = 0.5949 nm, c = 0.5589 nm, and 7 = 90.34 at room temperature (297 K) changed to an intermediate (10M') phase with a = b = 0.5945 nm, c = 0.5616 nm, and gamma = 90.25 degrees at a few tenths of kelvin below the transformation to austenite at T-A = 327 K. This previously unreported 10M' phase between 10M martensite and austenite can be described as orthorhombic using axes diagonal to the original a and b axes derived from the cubic L2(1) cell. Upon cooling, the phase remained stable in a broader temperature interval down to temperature T = 318 K at which it transformed back to monoclinic 10M structure with a not equal b. The transformation temperature coincided with the martensitic transformation temperature T-M = 318 K.

Název v anglickém jazyce

Orthorhombic intermediate phase originating from {110} nanotwinning in Ni50.0Mn28.7Ga21.3 modulated martensite

Popis výsledku anglicky

The temperature evolution of the structure of Ni50.0Mn28.7Ga21.3, single crystals exhibiting magnetic shape memory effect was investigated near the martensitic transformation by X-ray diffraction. Upon heating, five-layered modulated monoclinic martensite (10M) with a = 0.5974 nm, b = 0.5949 nm, c = 0.5589 nm, and 7 = 90.34 at room temperature (297 K) changed to an intermediate (10M') phase with a = b = 0.5945 nm, c = 0.5616 nm, and gamma = 90.25 degrees at a few tenths of kelvin below the transformation to austenite at T-A = 327 K. This previously unreported 10M' phase between 10M martensite and austenite can be described as orthorhombic using axes diagonal to the original a and b axes derived from the cubic L2(1) cell. Upon cooling, the phase remained stable in a broader temperature interval down to temperature T = 318 K at which it transformed back to monoclinic 10M structure with a not equal b. The transformation temperature coincided with the martensitic transformation temperature T-M = 318 K.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Acta Materialia

ISSN

1359-6454

e-ISSN

—

Svazek periodika

132

Číslo periodika v rámci svazku

Jun

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

335-344

Kód UT WoS článku

000405881500030

EID výsledku v databázi Scopus

2-s2.0-85018981539