The powder sintering and isothermal forging of Ti-10V-2Fe-3Al

The synthetic technology of powder sintering and isothermal forging was explored to prepare a powder Ti-10V-2Fe-3Al (Ti-1023) alloy. Hydride-dehydride powder was provided from unqualified Ti-1023 ingot alloy because of “beta fleck” defect. After cold isostatic pressing and sintering, the compact pre...

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Veröffentlicht in:	JOM (1989) 2008-11, Vol.60 (11), p.47-49
Hauptverfasser:	Guo, Hongzhen, Zhao, Zhanglong, Duan, Chunyan, Yao, Zekun
Format:	Artikel
Sprache:	eng
Schlagworte:	Aircraft Chemistry/Food Science Crack initiation Ductility Earth Sciences Engineering Environment Forging Grain boundaries Mechanical properties Microstructure Physics Powder metallurgy Sintering Titanium alloys Titanium: Advances in Processing
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Beschreibung
Zusammenfassung:	The synthetic technology of powder sintering and isothermal forging was explored to prepare a powder Ti-10V-2Fe-3Al (Ti-1023) alloy. Hydride-dehydride powder was provided from unqualified Ti-1023 ingot alloy because of “beta fleck” defect. After cold isostatic pressing and sintering, the compact presented uniform chemical composition, but lamella alpha microstructure. Isothermal forging technology was used to further densify the sintered compact and improve the microstructure and properties. The final forged compact exhibited equiaxed, recrystallized, and fined alpha phase microstructure, and excellent tensile properties at room temperature.
ISSN:	1047-4838 1543-1851
DOI:	10.1007/s11837-008-0147-3