In situ detection of stability limit of omega phase in Ti-15Mo alloy during heating

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F19%3AN0000050" target="_blank" >RIV/26722445:_____/19:N0000050 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/19:10402825 RIV/00216224:14740/19:00113445

Výsledek na webu

<a href="http://journals.iucr.org/j/issues/2019/05/00/ks5620/index.html" target="_blank" >http://journals.iucr.org/j/issues/2019/05/00/ks5620/index.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1107/S1600576719010537" target="_blank" >10.1107/S1600576719010537</a>

Jazyk výsledku

angličtina

Název v původním jazyce

In situ detection of stability limit of omega phase in Ti-15Mo alloy during heating

Popis výsledku v původním jazyce

Phase transitions in a single crystal of a metastable beta -titanium alloy (Ti-15Mo) were investigated in situ during heating by synchrotron X-ray diffraction. The results were compared with previous measurements of electrical resistance. Single-crystalline samples allowed different crystallographic families of omega -Ti and alpha -Ti phases to be distinguished. The observed evolution of the intensity of the reflections of the omega phase during heating is consistent with the evolution of electrical resistance, which proves that the resistance is affected by the presence of omega -phase particles. Between approximately 673 and 833K, both the resistance and the intensity of omega peaks sharply decrease. At 833K, omega reflections disappear, indicating a complete dissolution of the omega phase due to achieving the solvus temperature of the omega phase in the Ti-15Mo alloy. The synchrotron X-ray diffraction experiment proved that the disappearance of the omega phase during heating of Ti-15Mo with a heating rate of 5Kmin(-1) occurs by its dissolution back to the beta phase and not by omega -> alpha transformation.

Název v anglickém jazyce

In situ detection of stability limit of omega phase in Ti-15Mo alloy during heating

Popis výsledku anglicky

Phase transitions in a single crystal of a metastable beta -titanium alloy (Ti-15Mo) were investigated in situ during heating by synchrotron X-ray diffraction. The results were compared with previous measurements of electrical resistance. Single-crystalline samples allowed different crystallographic families of omega -Ti and alpha -Ti phases to be distinguished. The observed evolution of the intensity of the reflections of the omega phase during heating is consistent with the evolution of electrical resistance, which proves that the resistance is affected by the presence of omega -phase particles. Between approximately 673 and 833K, both the resistance and the intensity of omega peaks sharply decrease. At 833K, omega reflections disappear, indicating a complete dissolution of the omega phase due to achieving the solvus temperature of the omega phase in the Ti-15Mo alloy. The synchrotron X-ray diffraction experiment proved that the disappearance of the omega phase during heating of Ti-15Mo with a heating rate of 5Kmin(-1) occurs by its dissolution back to the beta phase and not by omega -> alpha transformation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace<br>N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Journal of Applied Crystallography

ISSN

0021-8898

e-ISSN

1600-5767

Svazek periodika

52

Číslo periodika v rámci svazku

October

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

1061-1071

Kód UT WoS článku

000497756900016

EID výsledku v databázi Scopus

2-s2.0-85069690364