Surface hardening of Ti6Al4V alloy by hydrogenation

Utilization of an electrochemical technique to dissolve hydrogen into a Ti alloy to replace the H environment in thermochemical processing is discussed. Microstructures and hardness of this new processed Ti--6Al--4V alloy are reported. Surface hardening of Ti--6Al--4V alloy can be performed by elect...

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Veröffentlicht in:	Scripta metallurgica 1991-10, Vol.25 (10), p.2335-2338
Hauptverfasser:	Wu, Tair I, Wu, Jiann Kuo
Format:	Artikel
Sprache:	eng
Schlagworte:	360101 - Metals & Alloys- Preparation & Fabrication 360102 - Metals & Alloys- Structure & Phase Studies 360103 - Metals & Alloys- Mechanical Properties ALLOYS ALUMINIUM ALLOYS AMBIENT TEMPERATURE Applied sciences BRITTLENESS CHEMISTRY CONCENTRATION RATIO CRYSTAL STRUCTURE DISSOLUTION ELECTROCHEMISTRY ELEMENTS Exact sciences and technology FABRICATION FLUIDS GASES GRAIN GROWTH HARDNESS Heat treatment HYDROGEN HYDROGEN ADDITIONS INHIBITION MATERIALS SCIENCE MECHANICAL PROPERTIES Metals. Metallurgy MICROSTRUCTURE NONMETALS Production techniques STABILIZATION TEMPERATURE DEPENDENCE THERMOCHEMICAL PROCESSES Thermochemical treatment and diffusion treatment TITANIUM ALLOYS VANADIUM ALLOYS
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Zusammenfassung:	Utilization of an electrochemical technique to dissolve hydrogen into a Ti alloy to replace the H environment in thermochemical processing is discussed. Microstructures and hardness of this new processed Ti--6Al--4V alloy are reported. Surface hardening of Ti--6Al--4V alloy can be performed by electrochemical charging, subsequent solution treatment, followed by dehydrogenation to obtain an equiaxed alpha grain in transformed beta matrix. The hardness of the surface layer can be enhanced by the present developing process.
ISSN:	0956-716X 0036-9748
DOI:	10.1016/0956-716X(91)90025-V