Deoxidation of Ti-Al intermetallics via hydrogen treatment

Yanqing Su; Xinwang Liu; Liangshun Luo; Long Zhao; Jingjie Guo; Hengzhi Fu

doi:10.1016/j.ijhydene.2010.05.115

Deoxidation of Ti-Al intermetallics via hydrogen treatment

Yanqing Su^*
, Xinwang Liu
, Liangshun Luo
, Long Zhao
, Jingjie Guo
, Hengzhi Fu

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology

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

24 Scopus citations

Abstract

Alloys of Ti-47Al were deoxidized via a simple method called hydrogen treatment (HT), which involves deoxidation with hydrogen in a melting process. Because of the increase in the partial pressure of hydrogen and the melting duration, the oxygen content of the alloys greatly decreased after HT. Activated hydrogen atoms dissociated at high temperatures, and the hydrogen molecules in the melting chamber seemed to affect the deoxidation reactions, which are represented by the following equations: O + 2H = H₂O and O + H ₂ = H₂O. Based on a comparison of the changes in Gibbs free energy, the hydrogen atoms were found to play a major role in deoxidation.

Original language	English
Pages (from-to)	9214-9217
Number of pages	4
Journal	International Journal of Hydrogen Energy
Volume	35
Issue number	17
DOIs	https://doi.org/10.1016/j.ijhydene.2010.05.115
State	Published - Sep 2010

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Deoxidation
Free energy
Hydrogen treatment
Intermetallics

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10.1016/j.ijhydene.2010.05.115

Cite this

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title = "Deoxidation of Ti-Al intermetallics via hydrogen treatment",

abstract = "Alloys of Ti-47Al were deoxidized via a simple method called hydrogen treatment (HT), which involves deoxidation with hydrogen in a melting process. Because of the increase in the partial pressure of hydrogen and the melting duration, the oxygen content of the alloys greatly decreased after HT. Activated hydrogen atoms dissociated at high temperatures, and the hydrogen molecules in the melting chamber seemed to affect the deoxidation reactions, which are represented by the following equations: O + 2H = H2O and O + H 2 = H2O. Based on a comparison of the changes in Gibbs free energy, the hydrogen atoms were found to play a major role in deoxidation.",

keywords = "Deoxidation, Free energy, Hydrogen treatment, Intermetallics",

author = "Yanqing Su and Xinwang Liu and Liangshun Luo and Long Zhao and Jingjie Guo and Hengzhi Fu",

year = "2010",

month = sep,

doi = "10.1016/j.ijhydene.2010.05.115",

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pages = "9214--9217",

journal = "International Journal of Hydrogen Energy",

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TY - JOUR

T1 - Deoxidation of Ti-Al intermetallics via hydrogen treatment

AU - Su, Yanqing

AU - Liu, Xinwang

AU - Luo, Liangshun

AU - Zhao, Long

AU - Guo, Jingjie

AU - Fu, Hengzhi

PY - 2010/9

Y1 - 2010/9

N2 - Alloys of Ti-47Al were deoxidized via a simple method called hydrogen treatment (HT), which involves deoxidation with hydrogen in a melting process. Because of the increase in the partial pressure of hydrogen and the melting duration, the oxygen content of the alloys greatly decreased after HT. Activated hydrogen atoms dissociated at high temperatures, and the hydrogen molecules in the melting chamber seemed to affect the deoxidation reactions, which are represented by the following equations: O + 2H = H2O and O + H 2 = H2O. Based on a comparison of the changes in Gibbs free energy, the hydrogen atoms were found to play a major role in deoxidation.

AB - Alloys of Ti-47Al were deoxidized via a simple method called hydrogen treatment (HT), which involves deoxidation with hydrogen in a melting process. Because of the increase in the partial pressure of hydrogen and the melting duration, the oxygen content of the alloys greatly decreased after HT. Activated hydrogen atoms dissociated at high temperatures, and the hydrogen molecules in the melting chamber seemed to affect the deoxidation reactions, which are represented by the following equations: O + 2H = H2O and O + H 2 = H2O. Based on a comparison of the changes in Gibbs free energy, the hydrogen atoms were found to play a major role in deoxidation.

KW - Deoxidation

KW - Free energy

KW - Hydrogen treatment

KW - Intermetallics

UR - https://www.scopus.com/pages/publications/78049419219

U2 - 10.1016/j.ijhydene.2010.05.115

DO - 10.1016/j.ijhydene.2010.05.115

M3 - 文章

AN - SCOPUS:78049419219

SN - 0360-3199

VL - 35

SP - 9214

EP - 9217

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 17

ER -

Deoxidation of Ti-Al intermetallics via hydrogen treatment

Abstract

UN SDGs

Keywords

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