Influence of ion irradiation on phase transformation behaviour of quenched Ti-48Al-2Nb alloy during aging

Titanium aluminides based on γ-TiAl are potential materials for high temperature aerospace application. The mechanical properties of these alloys are very sensitive to microstructure. Influence of ion irradiation on phase transformation behavior of quenched Ti-48Al-2Nb alloy during aging at 650 and...

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Bibliographic Details
Published in:	Crystal engineering Vol. 5; no. 3; pp. 217 - 225
Main Authors:	Melikhov, V.D, Romankov, S.E, Volkova, T.V, Orozbaev, R.O
Format:	Journal Article Conference Proceeding
Language:	English
Published:	Oxford Elsevier Ltd 01-09-2002 Elsevier Science
Subjects:	Applied sciences Condensed matter: structure, mechanical and thermal properties Exact sciences and technology Heat treatments Intermetallics compound Ion implantation Ion radiation effects Metals and alloys Metals. Metallurgy Phase transitions Physical radiation effects, radiation damage Physics Radiation effects on specific materials Structure of solids and liquids; crystallography X-ray diffraction X-ray diffraction Ion implantation Intermetallics compound Phase transitions Heat treatments Structure stability Phase transformations Physical radiation effects Ternary alloys Ions Niobium alloys XRD Experimental study Titanium base alloys Aluminium alloys Titanium ions Aging Microstructure Transition element alloys
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Summary:	Titanium aluminides based on γ-TiAl are potential materials for high temperature aerospace application. The mechanical properties of these alloys are very sensitive to microstructure. Influence of ion irradiation on phase transformation behavior of quenched Ti-48Al-2Nb alloy during aging at 650 and 800 °C has been studied by X-ray diffraction. The quenched samples were irradiated by 60 keV Ti + ions. Next, the recovery of microstructure during aging at 650 and 800 °C has been studied. It is revealed that the preliminary irradiation of quenched samples greatly affects the dynamics of phase transformations during aging. It is established that the speed of the phase transformations in preliminary irradiated and non irradiated samples is different.
Bibliography:	SourceType-Scholarly Journals-2 ObjectType-Feature-2 ObjectType-Conference Paper-1 content type line 23 SourceType-Conference Papers & Proceedings-1 ObjectType-Article-3
ISSN:	1463-0184
DOI:	10.1016/S1463-0184(02)00032-1