MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
Effects of Compositions on Formation of 1, 2 Protorides in Ti-Cr-V Alloys
Takuya TamuraAtsunori KamegawaHitoshi TakamuraMasuo Okada
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2002 Volume 43 Issue 3 Pages 410-413

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Abstract

Ti–Cr–V alloys are known to absorb protium up to H/M=2. However, Ti–Cr–20 at%V alloys with more than 56 at%Cr content were found to absorb up to H/M=1. This paper aims to make clear the effects of compositions on formations of 1, 2 protorides in Ti–Cr–V alloys, and the structure of the mono-protorides. It was found that the mono-protorides with fcc and hcp structures exist. The mono-protoride with the fcc structure was different from the di-protoride with the FCC structure in the lattice constants. Some relationship between appearance of the mono-protorides and disappearance of the plateau regions in low hydrogen pressure regions was considered to exist. As a result, the appearance regions of 1, 2 protorides in Ti–Cr–V alloys were derived.

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© 2002 The Japan Institute of Metals and Materials
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