Effect of quenching rates on the phase structure and electrochemical properties of TiV2.1Ni0.4Zr0.06 Cu0.03Cr0.1 alloys

Yifang Wu; Yongning Liu; Jianfeng Fang; Xiaobo Ma; Yuanzhen Chen; Bo Liu; Yuping Zhang; Yuan Fang; Chengshan Li; Zhengping Xi

Effect of quenching rates on the phase structure and electrochemical properties of TiV_2.1Ni_0.4Zr_0.06 Cu_0.03Cr_0.1 alloys

Yifang Wu
, Yongning Liu
, Jianfeng Fang
, Xiaobo Ma
, Yuanzhen Chen
, Bo Liu
, Yuping Zhang
, Yuan Fang
, Chengshan Li
, Zhengping Xi

School of Materials Science and Engineering

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

Abstract

The phase structures and electrochemical properties of TiV_2.1Ni_0.4Zr_0.06 Cu_0.03Cr_0.1 alloys at different quenching rates were investigated. XRD, EBI and EDS analyses indicate that the alloys mainly consist of a V-based solid solution main phase and a network structure of Ti2Ni secondary phase along grain boundaries of the main phase. Electrochemical measurements show that the maximum discharge capacity, the exchange current density, limiting current density and the cycling stability are all increased by higher quenching rate. The high-rate dischargeablity (HRD) is decreased because of the quick dissolution of the secondary catalytic phase in alkali solution at higher discharge current density.

Original language	English
Pages (from-to)	2237-2241
Number of pages	5
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	39
Issue number	12
State	Published - Dec 2010

Keywords

Electrochemical property
Hydrogen storage alloy
Quenching rate
V based solid solution

Cite this

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title = "Effect of quenching rates on the phase structure and electrochemical properties of TiV2.1Ni0.4Zr0.06 Cu0.03Cr0.1 alloys",

abstract = "The phase structures and electrochemical properties of TiV2.1Ni0.4Zr0.06 Cu0.03Cr0.1 alloys at different quenching rates were investigated. XRD, EBI and EDS analyses indicate that the alloys mainly consist of a V-based solid solution main phase and a network structure of Ti2Ni secondary phase along grain boundaries of the main phase. Electrochemical measurements show that the maximum discharge capacity, the exchange current density, limiting current density and the cycling stability are all increased by higher quenching rate. The high-rate dischargeablity (HRD) is decreased because of the quick dissolution of the secondary catalytic phase in alkali solution at higher discharge current density.",

keywords = "Electrochemical property, Hydrogen storage alloy, Quenching rate, V based solid solution",

author = "Yifang Wu and Yongning Liu and Jianfeng Fang and Xiaobo Ma and Yuanzhen Chen and Bo Liu and Yuping Zhang and Yuan Fang and Chengshan Li and Zhengping Xi",

year = "2010",

month = dec,

language = "英语",

volume = "39",

pages = "2237--2241",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

issn = "1002-185X",

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TY - JOUR

T1 - Effect of quenching rates on the phase structure and electrochemical properties of TiV2.1Ni0.4Zr0.06 Cu0.03Cr0.1 alloys

AU - Wu, Yifang

AU - Liu, Yongning

AU - Fang, Jianfeng

AU - Ma, Xiaobo

AU - Chen, Yuanzhen

AU - Liu, Bo

AU - Zhang, Yuping

AU - Fang, Yuan

AU - Li, Chengshan

AU - Xi, Zhengping

PY - 2010/12

Y1 - 2010/12

N2 - The phase structures and electrochemical properties of TiV2.1Ni0.4Zr0.06 Cu0.03Cr0.1 alloys at different quenching rates were investigated. XRD, EBI and EDS analyses indicate that the alloys mainly consist of a V-based solid solution main phase and a network structure of Ti2Ni secondary phase along grain boundaries of the main phase. Electrochemical measurements show that the maximum discharge capacity, the exchange current density, limiting current density and the cycling stability are all increased by higher quenching rate. The high-rate dischargeablity (HRD) is decreased because of the quick dissolution of the secondary catalytic phase in alkali solution at higher discharge current density.

AB - The phase structures and electrochemical properties of TiV2.1Ni0.4Zr0.06 Cu0.03Cr0.1 alloys at different quenching rates were investigated. XRD, EBI and EDS analyses indicate that the alloys mainly consist of a V-based solid solution main phase and a network structure of Ti2Ni secondary phase along grain boundaries of the main phase. Electrochemical measurements show that the maximum discharge capacity, the exchange current density, limiting current density and the cycling stability are all increased by higher quenching rate. The high-rate dischargeablity (HRD) is decreased because of the quick dissolution of the secondary catalytic phase in alkali solution at higher discharge current density.

KW - Electrochemical property

KW - Hydrogen storage alloy

KW - Quenching rate

KW - V based solid solution

UR - https://www.scopus.com/pages/publications/79952048669

M3 - 文章

AN - SCOPUS:79952048669

SN - 1002-185X

VL - 39

SP - 2237

EP - 2241

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 12

ER -

Effect of quenching rates on the phase structure and electrochemical properties of TiV_2.1Ni_0.4Zr_0.06 Cu_0.03Cr_0.1 alloys

Abstract

Keywords

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