Influence of melt hydrogenation during induction skull melting process on the solidification microstructure of Ti-6Al-4V alloy

A new method to modify the solidification microstructure of titanium alloys, named melt hydrogenation, by adding TiH2 as additive into the melt of titanium alloys during induction skull melting process (ISM), is put forward and the refining effect of this method on the solidification microstructure...

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Main Authors: Zhang Yuehong, Su Yanqing, Ye Xicong
Format: Article
Language:English
Published: Foundry Journal Agency 2010-05-01
Series:China Foundry
Subjects:
Online Access:http://www.foundryworld.com/uploadfile/201052861993737.pdf
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author Zhang Yuehong
Su Yanqing
Ye Xicong
author_facet Zhang Yuehong
Su Yanqing
Ye Xicong
author_sort Zhang Yuehong
collection DOAJ
description A new method to modify the solidification microstructure of titanium alloys, named melt hydrogenation, by adding TiH2 as additive into the melt of titanium alloys during induction skull melting process (ISM), is put forward and the refining effect of this method on the solidification microstructure of Ti-6Al-4V alloy was studied experimentally. After melt hydrogenation, the grain sizes of as-cast Ti-6Al-4V alloy decreased to 612 μm from 1,072 μm, lath-shaped α phase was also refined and fine α/β lamellar microstructure was formed when 1.0 wt.% TiH2 was added. δ-hydride was found in the X-ray diffraction (XRD) spectra of Ti-6Al-4V alloy that prepared with 1.0 wt.% TiH2 added and the δ-hydride distributes in α phase as acicular precipitations.
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spelling doaj.art-d2321132ab244e898b4087b872af1c562022-12-21T22:38:07ZengFoundry Journal AgencyChina Foundry1672-64212010-05-0172109112Influence of melt hydrogenation during induction skull melting process on the solidification microstructure of Ti-6Al-4V alloyZhang YuehongSu YanqingYe XicongA new method to modify the solidification microstructure of titanium alloys, named melt hydrogenation, by adding TiH2 as additive into the melt of titanium alloys during induction skull melting process (ISM), is put forward and the refining effect of this method on the solidification microstructure of Ti-6Al-4V alloy was studied experimentally. After melt hydrogenation, the grain sizes of as-cast Ti-6Al-4V alloy decreased to 612 μm from 1,072 μm, lath-shaped α phase was also refined and fine α/β lamellar microstructure was formed when 1.0 wt.% TiH2 was added. δ-hydride was found in the X-ray diffraction (XRD) spectra of Ti-6Al-4V alloy that prepared with 1.0 wt.% TiH2 added and the δ-hydride distributes in α phase as acicular precipitations.http://www.foundryworld.com/uploadfile/201052861993737.pdfmelt hydrogenationTi-6Al-4Vmicrostructurerefinement
spellingShingle Zhang Yuehong
Su Yanqing
Ye Xicong
Influence of melt hydrogenation during induction skull melting process on the solidification microstructure of Ti-6Al-4V alloy
China Foundry
melt hydrogenation
Ti-6Al-4V
microstructure
refinement
title Influence of melt hydrogenation during induction skull melting process on the solidification microstructure of Ti-6Al-4V alloy
title_full Influence of melt hydrogenation during induction skull melting process on the solidification microstructure of Ti-6Al-4V alloy
title_fullStr Influence of melt hydrogenation during induction skull melting process on the solidification microstructure of Ti-6Al-4V alloy
title_full_unstemmed Influence of melt hydrogenation during induction skull melting process on the solidification microstructure of Ti-6Al-4V alloy
title_short Influence of melt hydrogenation during induction skull melting process on the solidification microstructure of Ti-6Al-4V alloy
title_sort influence of melt hydrogenation during induction skull melting process on the solidification microstructure of ti 6al 4v alloy
topic melt hydrogenation
Ti-6Al-4V
microstructure
refinement
url http://www.foundryworld.com/uploadfile/201052861993737.pdf
work_keys_str_mv AT zhangyuehong influenceofmelthydrogenationduringinductionskullmeltingprocessonthesolidificationmicrostructureofti6al4valloy
AT suyanqing influenceofmelthydrogenationduringinductionskullmeltingprocessonthesolidificationmicrostructureofti6al4valloy
AT yexicong influenceofmelthydrogenationduringinductionskullmeltingprocessonthesolidificationmicrostructureofti6al4valloy