Microstructure and Hydrogen Absorption Properties of a BCC Phase Accompanied Laves Alloy

Yunlong Zhang; Tiebang Zhang; Jinshan Li; Ruolin Li; Yun Yu; Yalin Lu

doi:10.1007/s12540-018-0207-3

Microstructure and Hydrogen Absorption Properties of a BCC Phase Accompanied Laves Alloy

Yunlong Zhang, Tiebang Zhang, Jinshan Li, Ruolin Li, Yun Yu, Yalin Lu

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

A non-stoichiometry Zr_0.7Ti_0.4V_1.5Cr_0.4 alloy has been synthesized by arc melting following annealing treatment or melt-spinning to obtain the bulk and ribbon samples, respectively. XRD investigation reveals the multiphase structure consisting of C15-Laves, V-BCC and a small amount of α-Zr or Zr₃V₃O. The alloy shows easy activation and fast hydrogenation kinetics. The annealed alloy absorbs 2.51 wt% H at room temperature, higher than the melt-spun ribbons. Refined grains by melt-spinning accelerates the hydrogenation of bulk alloy. The absorption behavior in presence of 1 mol% air has been tested to evaluate the anti-poisoning ability. Pressure–composition–temperature characteristics and thermodynamics parameters indicate the low equilibrium pressure and high hydrides stability. Hydrides investigation reveals that the Laves phase dominant multiphase structure contributes to the enhanced hydrogen capacity and multi-stage hydrogen release in DSC curve.

Original language	English
Pages (from-to)	814-820
Number of pages	7
Journal	Metals and Materials International
Volume	25
Issue number	3
DOIs	https://doi.org/10.1007/s12540-018-0207-3
State	Published - 1 May 2019

Keywords

BCC phase
Hydrogen absorption
Laves phase
Melt-spun
Zr-based alloy

Access to Document

10.1007/s12540-018-0207-3

Cite this

@article{8571f398f7e5459a882fcbfe5db66f77,

title = "Microstructure and Hydrogen Absorption Properties of a BCC Phase Accompanied Laves Alloy",

abstract = "A non-stoichiometry Zr0.7Ti0.4V1.5Cr0.4 alloy has been synthesized by arc melting following annealing treatment or melt-spinning to obtain the bulk and ribbon samples, respectively. XRD investigation reveals the multiphase structure consisting of C15-Laves, V-BCC and a small amount of α-Zr or Zr3V3O. The alloy shows easy activation and fast hydrogenation kinetics. The annealed alloy absorbs 2.51 wt% H at room temperature, higher than the melt-spun ribbons. Refined grains by melt-spinning accelerates the hydrogenation of bulk alloy. The absorption behavior in presence of 1 mol% air has been tested to evaluate the anti-poisoning ability. Pressure–composition–temperature characteristics and thermodynamics parameters indicate the low equilibrium pressure and high hydrides stability. Hydrides investigation reveals that the Laves phase dominant multiphase structure contributes to the enhanced hydrogen capacity and multi-stage hydrogen release in DSC curve.",

keywords = "BCC phase, Hydrogen absorption, Laves phase, Melt-spun, Zr-based alloy",

author = "Yunlong Zhang and Tiebang Zhang and Jinshan Li and Ruolin Li and Yun Yu and Yalin Lu",

note = "Publisher Copyright: {\textcopyright} 2018, The Korean Institute of Metals and Materials.",

year = "2019",

month = may,

day = "1",

doi = "10.1007/s12540-018-0207-3",

language = "英语",

volume = "25",

pages = "814--820",

journal = "Metals and Materials International",

issn = "1598-9623",

publisher = "Korean Institute of Metals and Materials",

number = "3",

}

TY - JOUR

T1 - Microstructure and Hydrogen Absorption Properties of a BCC Phase Accompanied Laves Alloy

AU - Zhang, Yunlong

AU - Zhang, Tiebang

AU - Li, Jinshan

AU - Li, Ruolin

AU - Yu, Yun

AU - Lu, Yalin

PY - 2019/5/1

Y1 - 2019/5/1

N2 - A non-stoichiometry Zr0.7Ti0.4V1.5Cr0.4 alloy has been synthesized by arc melting following annealing treatment or melt-spinning to obtain the bulk and ribbon samples, respectively. XRD investigation reveals the multiphase structure consisting of C15-Laves, V-BCC and a small amount of α-Zr or Zr3V3O. The alloy shows easy activation and fast hydrogenation kinetics. The annealed alloy absorbs 2.51 wt% H at room temperature, higher than the melt-spun ribbons. Refined grains by melt-spinning accelerates the hydrogenation of bulk alloy. The absorption behavior in presence of 1 mol% air has been tested to evaluate the anti-poisoning ability. Pressure–composition–temperature characteristics and thermodynamics parameters indicate the low equilibrium pressure and high hydrides stability. Hydrides investigation reveals that the Laves phase dominant multiphase structure contributes to the enhanced hydrogen capacity and multi-stage hydrogen release in DSC curve.

AB - A non-stoichiometry Zr0.7Ti0.4V1.5Cr0.4 alloy has been synthesized by arc melting following annealing treatment or melt-spinning to obtain the bulk and ribbon samples, respectively. XRD investigation reveals the multiphase structure consisting of C15-Laves, V-BCC and a small amount of α-Zr or Zr3V3O. The alloy shows easy activation and fast hydrogenation kinetics. The annealed alloy absorbs 2.51 wt% H at room temperature, higher than the melt-spun ribbons. Refined grains by melt-spinning accelerates the hydrogenation of bulk alloy. The absorption behavior in presence of 1 mol% air has been tested to evaluate the anti-poisoning ability. Pressure–composition–temperature characteristics and thermodynamics parameters indicate the low equilibrium pressure and high hydrides stability. Hydrides investigation reveals that the Laves phase dominant multiphase structure contributes to the enhanced hydrogen capacity and multi-stage hydrogen release in DSC curve.

KW - BCC phase

KW - Hydrogen absorption

KW - Laves phase

KW - Melt-spun

KW - Zr-based alloy

UR - http://www.scopus.com/inward/record.url?scp=85056003579&partnerID=8YFLogxK

U2 - 10.1007/s12540-018-0207-3

DO - 10.1007/s12540-018-0207-3

M3 - 文章

AN - SCOPUS:85056003579

SN - 1598-9623

VL - 25

SP - 814

EP - 820

JO - Metals and Materials International

JF - Metals and Materials International

IS - 3

ER -

Microstructure and Hydrogen Absorption Properties of a BCC Phase Accompanied Laves Alloy

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this