Effect of Heat Treatment Duration on Corrosion Performance of Electron Beam Manufactured Ti6Al4V Alloy

Junyuan Huang; Wei Zhang

doi:10.12442/j.issn.1002-185X.20230534

Effect of Heat Treatment Duration on Corrosion Performance of Electron Beam Manufactured Ti6Al4V Alloy

Junyuan Huang
, Wei Zhang^*

^*Corresponding author for this work

School of Mechanical Engineering and Automation

Beihang University

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

2 Scopus citations

Abstract

Ti6Al4V specimens prepared by electron beam selective melting were heat-treated for 1, 3, 5, 7, and 9 h, and the Tafel and electrochemical impedance spectroscopy experiments were conducted to discuss the behavior and mechanism of electrochemical corrosion. Through the modification mechanism analysis of corrosion performance, it is found that the more the <111> crystal orientations, the greater the proportion of small-angle grain boundaries, the larger the grain diameter, and the better the corrosion resistance. The specimen after heat treatment for 5 h has the most uniform <111> crystal orientations. The proportion of small-angle grain boundaries is the highest of 56.2%, the grain intercept is 5.252 µm, and the corrosion resistance is optimal with corrosion current of 0.037

Translated title of the contribution	热处理时间对电子束制造 Ti6Al4V 合金腐蚀性能的影响
Original language	English
Pages (from-to)	357-364
Number of pages	8
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	53
Issue number	2
DOIs	https://doi.org/10.12442/j.issn.1002-185X.20230534
State	Published - Feb 2024

Keywords

corrosion resistance
crystal phase
crystal structure
electron beam selective melting
Ti6Al4V

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10.12442/j.issn.1002-185X.20230534

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title = "Effect of Heat Treatment Duration on Corrosion Performance of Electron Beam Manufactured Ti6Al4V Alloy",

abstract = "Ti6Al4V specimens prepared by electron beam selective melting were heat-treated for 1, 3, 5, 7, and 9 h, and the Tafel and electrochemical impedance spectroscopy experiments were conducted to discuss the behavior and mechanism of electrochemical corrosion. Through the modification mechanism analysis of corrosion performance, it is found that the more the <111> crystal orientations, the greater the proportion of small-angle grain boundaries, the larger the grain diameter, and the better the corrosion resistance. The specimen after heat treatment for 5 h has the most uniform <111> crystal orientations. The proportion of small-angle grain boundaries is the highest of 56.2\%, the grain intercept is 5.252 µm, and the corrosion resistance is optimal with corrosion current of 0.037",

keywords = "corrosion resistance, crystal phase, crystal structure, electron beam selective melting, Ti6Al4V",

author = "Junyuan Huang and Wei Zhang",

year = "2024",

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doi = "10.12442/j.issn.1002-185X.20230534",

language = "英语",

volume = "53",

pages = "357--364",

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

issn = "1002-185X",

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number = "2",

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TY - JOUR

T1 - Effect of Heat Treatment Duration on Corrosion Performance of Electron Beam Manufactured Ti6Al4V Alloy

AU - Huang, Junyuan

AU - Zhang, Wei

PY - 2024/2

Y1 - 2024/2

N2 - Ti6Al4V specimens prepared by electron beam selective melting were heat-treated for 1, 3, 5, 7, and 9 h, and the Tafel and electrochemical impedance spectroscopy experiments were conducted to discuss the behavior and mechanism of electrochemical corrosion. Through the modification mechanism analysis of corrosion performance, it is found that the more the <111> crystal orientations, the greater the proportion of small-angle grain boundaries, the larger the grain diameter, and the better the corrosion resistance. The specimen after heat treatment for 5 h has the most uniform <111> crystal orientations. The proportion of small-angle grain boundaries is the highest of 56.2%, the grain intercept is 5.252 µm, and the corrosion resistance is optimal with corrosion current of 0.037

AB - Ti6Al4V specimens prepared by electron beam selective melting were heat-treated for 1, 3, 5, 7, and 9 h, and the Tafel and electrochemical impedance spectroscopy experiments were conducted to discuss the behavior and mechanism of electrochemical corrosion. Through the modification mechanism analysis of corrosion performance, it is found that the more the <111> crystal orientations, the greater the proportion of small-angle grain boundaries, the larger the grain diameter, and the better the corrosion resistance. The specimen after heat treatment for 5 h has the most uniform <111> crystal orientations. The proportion of small-angle grain boundaries is the highest of 56.2%, the grain intercept is 5.252 µm, and the corrosion resistance is optimal with corrosion current of 0.037

KW - corrosion resistance

KW - crystal phase

KW - crystal structure

KW - electron beam selective melting

KW - Ti6Al4V

UR - https://www.scopus.com/pages/publications/85186339514

U2 - 10.12442/j.issn.1002-185X.20230534

DO - 10.12442/j.issn.1002-185X.20230534

M3 - 文章

AN - SCOPUS:85186339514

SN - 1002-185X

VL - 53

SP - 357

EP - 364

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

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

IS - 2

ER -

Effect of Heat Treatment Duration on Corrosion Performance of Electron Beam Manufactured Ti6Al4V Alloy

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