A correction to optimum alloy composition for design of high-temperature high-strength Al Ti V Zr alloys through thermodynamic calculations

This study reports on the new optimum alloy composition which is supposed to maximize the coarsening resistance of the strengthening Al sub 3 (Ti,V,Zr) phase at high temperatures of service in this system. With respect to the coarsening resistance and volume fraction of the D0 sub 23 Al sub 3 M disp...

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Veröffentlicht in:	Scripta Materialia 1997-07, Vol.37 (1), p.93-97
Hauptverfasser:	Il Park, Seong, Han, Seung Zeon, Lee, Zin-Hyoung, Mo Lee, Hyuck
Format:	Artikel
Sprache:	eng
Schlagworte:	ALUMINIUM BASE ALLOYS Applied sciences CHEMICAL COMPOSITION Cross-disciplinary physics: materials science rheology Exact sciences and technology INTERMETALLIC COMPOUNDS MATERIALS SCIENCE MECHANICAL PROPERTIES Metals. Metallurgy Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Phase diagrams of metals and alloys PHASE STUDIES Physics TITANIUM ALLOYS VANADIUM ALLOYS ZIRCONIUM ALLOYS
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Beschreibung
Zusammenfassung:	This study reports on the new optimum alloy composition which is supposed to maximize the coarsening resistance of the strengthening Al sub 3 (Ti,V,Zr) phase at high temperatures of service in this system. With respect to the coarsening resistance and volume fraction of the D0 sub 23 Al sub 3 M dispersion, the choice of optimum alloy composition appears to be that of mixed Ti-Zr addition with a small amount of V. This approach is suggested as a guide for alloy design and may not be quantitatively accurate for all purposes.
ISSN:	1359-6462 1872-8456
DOI:	10.1016/S1359-6462(97)00060-2