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Materials Science and Technology Volume 36, 2020 - Issue 5
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Research Articles

Influence of Y and Zr on TiAl43Nb4Mo1B0.1 titanium aluminide microstructure and properties

V. E. BazhenovFoundry Department, National University of Science and Technology MISiS, Moscow, RussiaCorrespondence[email protected]
ORCID Iconhttps://orcid.org/0000-0003-3214-1935
ORCID Icon,
V. S. KuprienkoFoundry Department, National University of Science and Technology MISiS, Moscow, Russia
,
A. V. FadeevFoundry Department, National University of Science and Technology MISiS, Moscow, Russia
,
A. I. BazlovLaboratory of Advanced Green Materials, National University of Science and Technology MISiS, Moscow, RussiaORCID Iconhttps://orcid.org/0000-0002-0409-1056
ORCID Icon,
V. D. BelovFoundry Department, National University of Science and Technology MISiS, Moscow, Russia
,
A. Yu. TitovFoundry Department, National University of Science and Technology MISiS, Moscow, RussiaORCID Iconhttps://orcid.org/0000-0002-3326-7778
ORCID Icon,
A. V. KoltyginFoundry Department, National University of Science and Technology MISiS, Moscow, RussiaORCID Iconhttps://orcid.org/0000-0002-8376-0480
ORCID Icon,
A. A. KomissarovLaboratory of Hybrid Nanostructured Materials, National University of Science and Technology MISiS, Moscow, RussiaORCID Iconhttps://orcid.org/0000-0001-5125-9870
ORCID Icon,
I. V. PlisetskayaFoundry Department, National University of Science and Technology MISiS, Moscow, Russia
&
I. A. LogachevMetallic Materials and Metallurgical Technologies Department, JSC Kompozit, Korolev, Russia
 show all
Pages 548-555 | Received 28 Sep 2019, Accepted 12 Jan 2020, Published online: 24 Jan 2020
 
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ABSTRACT

The influence of the addition of 2.3 at.-% Y and of 0.8 at.-% Zr + 0.2 at.-% Y on the properties of TiAl43Nb4Mo1B0.1 (TNM-B1) titanium aluminide alloy is investigated. Energy-dispersive X-ray spectroscopy analysis shows that the Y content of the β, γ, and α2 phases is low, and nearly all of the Y is in the Al2Y phase. The Zr content in the alloy phases is the same as that in alloy. Tensile tests show that Y addition decreases tensile strength and elongation, but only minor effects on these properties are observed after the addition of Zr and Y. It is shown that the addition of Y leads to a decrease in the heat resistance of TiAl43Nb4Mo1B0.1 alloy at 900°C.

Disclosure statement

No potential conflict of interest was reported by the authors.

Correction Statement

This article has been republished with minor changes. These changes do not impact the academic content of the article.

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