Heat treatment and mechanical properties of TiAl alloy with high Nb content

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F09%3A00331771" target="_blank" >RIV/68081723:_____/09:00331771 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Heat treatment and mechanical properties of TiAl alloy with high Nb content

Original language description

The influence of the fully lamellar strucute produced by heat treatment on mechanical properties of near gama-Ti-44Al-8Nb intermetallic was investigated. Effect of improved microstructural control on compression resistance is demonstrated using the stepcooling from. The differential thermal analysis was used to determine the phase transformation temperatures as the alfa transu. The heat treatment used, consisting in different cooling from alfa region, remould the as-cast nearly lamellar structure to the fully lamellar uniform structure and decreased the average grain size to the half.The furnace cooling to 1315°C and the following air cooling result in higher yield stress and lower plasticity due the very thin lamellar thickness and planar grain boundary. While higher plasticity and lower yield stress are obtained using the furnace cooling from to 1200°C and the following air cooling. It is caused by the very thick lamellar spacing and locked grain boundaries.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JJ - Other materials

OECD FORD branch

—

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

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

Name of the periodical

Materiálové inžinierstvo - Materials Engineering

ISSN

1335-0803

e-ISSN

—

Volume of the periodical

16

Issue of the periodical within the volume

3a

Country of publishing house

SK - SLOVAKIA

Number of pages

6

Pages from-to

—

UT code for WoS article

—

EID of the result in the Scopus database

—