Evolution of Ti2Ni precipitations during annealing and their effects on properties of Ti–Nb–Ni foil as PEMFC bipolar plates substrate

Haifeng Zhu; Xiaopeng Wang; Wei Meng; Pingwen Ming; Fantao Kong

doi:10.1016/j.ijhydene.2023.01.009

Evolution of Ti₂Ni precipitations during annealing and their effects on properties of Ti–Nb–Ni foil as PEMFC bipolar plates substrate

Haifeng Zhu
, Xiaopeng Wang
, Wei Meng
, Pingwen Ming
, Fantao Kong^*

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology
Harbin Institute of Technology
Tongji University

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

17 Scopus citations

Abstract

In this work, Ti–Nb–Ni foil was cold rolled and different annealing temperatures were conducted. For foils annealed at 600 °C, 650 °C and 700 °C, Ti₂Ni particles were evenly distributed in the matrix. Grain growth was obviously confined during annealing at these temperatures. While more (α+Ti₂Ni) eutectoids along grain boundaries (GBs) formed in the cases of higher temperatures. Plasticity of as-cold rolled foil was obviously improved by annealing and elongations gradually decreased with annealing temperature. Elongations of foil at 600 °C possessed the highest value, viz, 31.6% and 39.8% for RD and TD. For corrosion resistance, 850 °C annealed foil had the lowest i_corr compared with other counterparts. ICR of as-cold rolled and annealed specimens at 1.4 MPa were all lower than 10 mΩ cm⁻², which satisfied the DOE 2025 target.

Original language	English
Pages (from-to)	14822-14836
Number of pages	15
Journal	International Journal of Hydrogen Energy
Volume	48
Issue number	39
DOIs	https://doi.org/10.1016/j.ijhydene.2023.01.009
State	Published - 5 May 2023

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Annealing
Electrochemical properties
Elongation
Interface contact resistance
Metallic bipolar plates substrate
Zener pinning effect

Access to Document

10.1016/j.ijhydene.2023.01.009

Cite this

@article{a93ef64e1f934438966482a8c31abe3e,

title = "Evolution of Ti2Ni precipitations during annealing and their effects on properties of Ti–Nb–Ni foil as PEMFC bipolar plates substrate",

abstract = "In this work, Ti–Nb–Ni foil was cold rolled and different annealing temperatures were conducted. For foils annealed at 600 °C, 650 °C and 700 °C, Ti2Ni particles were evenly distributed in the matrix. Grain growth was obviously confined during annealing at these temperatures. While more (α+Ti2Ni) eutectoids along grain boundaries (GBs) formed in the cases of higher temperatures. Plasticity of as-cold rolled foil was obviously improved by annealing and elongations gradually decreased with annealing temperature. Elongations of foil at 600 °C possessed the highest value, viz, 31.6\% and 39.8\% for RD and TD. For corrosion resistance, 850 °C annealed foil had the lowest icorr compared with other counterparts. ICR of as-cold rolled and annealed specimens at 1.4 MPa were all lower than 10 mΩ cm−2, which satisfied the DOE 2025 target.",

keywords = "Annealing, Electrochemical properties, Elongation, Interface contact resistance, Metallic bipolar plates substrate, Zener pinning effect",

author = "Haifeng Zhu and Xiaopeng Wang and Wei Meng and Pingwen Ming and Fantao Kong",

note = "Publisher Copyright: {\textcopyright} 2023 Hydrogen Energy Publications LLC",

year = "2023",

month = may,

day = "5",

doi = "10.1016/j.ijhydene.2023.01.009",

language = "英语",

volume = "48",

pages = "14822--14836",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

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TY - JOUR

T1 - Evolution of Ti2Ni precipitations during annealing and their effects on properties of Ti–Nb–Ni foil as PEMFC bipolar plates substrate

AU - Zhu, Haifeng

AU - Wang, Xiaopeng

AU - Meng, Wei

AU - Ming, Pingwen

AU - Kong, Fantao

PY - 2023/5/5

Y1 - 2023/5/5

N2 - In this work, Ti–Nb–Ni foil was cold rolled and different annealing temperatures were conducted. For foils annealed at 600 °C, 650 °C and 700 °C, Ti2Ni particles were evenly distributed in the matrix. Grain growth was obviously confined during annealing at these temperatures. While more (α+Ti2Ni) eutectoids along grain boundaries (GBs) formed in the cases of higher temperatures. Plasticity of as-cold rolled foil was obviously improved by annealing and elongations gradually decreased with annealing temperature. Elongations of foil at 600 °C possessed the highest value, viz, 31.6% and 39.8% for RD and TD. For corrosion resistance, 850 °C annealed foil had the lowest icorr compared with other counterparts. ICR of as-cold rolled and annealed specimens at 1.4 MPa were all lower than 10 mΩ cm−2, which satisfied the DOE 2025 target.

AB - In this work, Ti–Nb–Ni foil was cold rolled and different annealing temperatures were conducted. For foils annealed at 600 °C, 650 °C and 700 °C, Ti2Ni particles were evenly distributed in the matrix. Grain growth was obviously confined during annealing at these temperatures. While more (α+Ti2Ni) eutectoids along grain boundaries (GBs) formed in the cases of higher temperatures. Plasticity of as-cold rolled foil was obviously improved by annealing and elongations gradually decreased with annealing temperature. Elongations of foil at 600 °C possessed the highest value, viz, 31.6% and 39.8% for RD and TD. For corrosion resistance, 850 °C annealed foil had the lowest icorr compared with other counterparts. ICR of as-cold rolled and annealed specimens at 1.4 MPa were all lower than 10 mΩ cm−2, which satisfied the DOE 2025 target.

KW - Annealing

KW - Electrochemical properties

KW - Elongation

KW - Interface contact resistance

KW - Metallic bipolar plates substrate

KW - Zener pinning effect

UR - https://www.scopus.com/pages/publications/85147360800

U2 - 10.1016/j.ijhydene.2023.01.009

DO - 10.1016/j.ijhydene.2023.01.009

M3 - 文章

AN - SCOPUS:85147360800

SN - 0360-3199

VL - 48

SP - 14822

EP - 14836

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 39

ER -