Microstructural control of Ti-46Al-7Nb-0.7Cr-0.2Ni-0.1Si alloy by heat treatment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F14%3A00435380" target="_blank" >RIV/68081723:_____/14:00435380 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.3139/146.111115" target="_blank" >http://dx.doi.org/10.3139/146.111115</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3139/146.111115" target="_blank" >10.3139/146.111115</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Microstructural control of Ti-46Al-7Nb-0.7Cr-0.2Ni-0.1Si alloy by heat treatment

Popis výsledku v původním jazyce

The effects of holding temperature, time and cooling rate on the microstructure of Ti-46Al-7Nb-0.7Cr-0.2Ni-0.1Si (at.%) alloys are studied. Three kinds of segregations are found in the as-cast material. In back scattered elektron images these segregations are observed as dark regions formed by the solidification process, bright regions with irregular shaped blocks and imaged regions of lighter kontrast formed by the cooling process from b phase to a phase and from a phase to (b + c) two phase or (a + b+ c) three phase, respectively. Addition of small amounts of Cr, Ni and Si to the Ti-45Al-7Nb alloy shifts the (b + c) two phase state and (a + c + b) three phase state to a lower Nb concentration range. While cooling from the a single phase state to the(b + c) two phase or (a + b + c) three phase states, sequential type phase transformation occurs. The amounts of Cr, Ni and Si are too small to induce the pearlitic mode of transformation. Therefore, the sequential mode of the ternary al

Název v anglickém jazyce

Microstructural control of Ti-46Al-7Nb-0.7Cr-0.2Ni-0.1Si alloy by heat treatment

Popis výsledku anglicky

The effects of holding temperature, time and cooling rate on the microstructure of Ti-46Al-7Nb-0.7Cr-0.2Ni-0.1Si (at.%) alloys are studied. Three kinds of segregations are found in the as-cast material. In back scattered elektron images these segregations are observed as dark regions formed by the solidification process, bright regions with irregular shaped blocks and imaged regions of lighter kontrast formed by the cooling process from b phase to a phase and from a phase to (b + c) two phase or (a + b+ c) three phase, respectively. Addition of small amounts of Cr, Ni and Si to the Ti-45Al-7Nb alloy shifts the (b + c) two phase state and (a + c + b) three phase state to a lower Nb concentration range. While cooling from the a single phase state to the(b + c) two phase or (a + b + c) three phase states, sequential type phase transformation occurs. The amounts of Cr, Ni and Si are too small to induce the pearlitic mode of transformation. Therefore, the sequential mode of the ternary al

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

International Journal of Materials Research

ISSN

1862-5282

e-ISSN

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Svazek periodika

105

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

9

Strana od-do

1075-1083

Kód UT WoS článku

000345502800004

EID výsledku v databázi Scopus

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