Selective dissolution of Ti-6AI-4V titanium alloy in mixed HCI + H 2SO4 solution

Chiu Yen Chih; Jhen Rong Chen; Wen-Ta Tsai

Selective dissolution of Ti-6AI-4V titanium alloy in mixed HCI + H ₂SO₄ solution

Chiu Yen Chih, Jhen Rong Chen, Wen-Ta Tsai

Research output: Contribution to journal › Conference article › peer-review

Abstract

The effect of microstructure on the corrosion behavior of Ti-6Al-4V titanium alloy was investigated. Solution annealing at 1066 oC for 1 h followed by cooling at different rate was applied. The microstructure as well as the chemical composition changes after heat treatment was analyzed by scanning electron microscopy(SEM) and energy dispersive spectroscopy(EDS). Dual phase(α+β) microstructure was obtained for the solution annealed alloy either cooled in air or in furnace, while martensite was obtained if it was water-quenched. The stability of passive film formed in air or in 1 M HCl + 0.5 M H₂SO₄ mixed solution was investigated by conducting potential decay measurement and Auger electron spectroscopy(AES). At open circuit potential, selective dissolution of vanadium-depleted a phase in 1 M HCl + 0.5 M H₂SO₄ mixed solution was found.

Original language	English
Journal	NACE - International Corrosion Conference Series
Publication status	Published - 2009 Aug 31
Event	Corrosion 2009 - Atlanta, GA, United States Duration: 2009 Mar 22 → 2009 Mar 26

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)
Materials Science(all)

Cite this

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title = "Selective dissolution of Ti-6AI-4V titanium alloy in mixed HCI + H 2SO4 solution",

abstract = "The effect of microstructure on the corrosion behavior of Ti-6Al-4V titanium alloy was investigated. Solution annealing at 1066 oC for 1 h followed by cooling at different rate was applied. The microstructure as well as the chemical composition changes after heat treatment was analyzed by scanning electron microscopy(SEM) and energy dispersive spectroscopy(EDS). Dual phase(α+β) microstructure was obtained for the solution annealed alloy either cooled in air or in furnace, while martensite was obtained if it was water-quenched. The stability of passive film formed in air or in 1 M HCl + 0.5 M H2SO4 mixed solution was investigated by conducting potential decay measurement and Auger electron spectroscopy(AES). At open circuit potential, selective dissolution of vanadium-depleted a phase in 1 M HCl + 0.5 M H2SO4 mixed solution was found.",

author = "Chih, {Chiu Yen} and Chen, {Jhen Rong} and Wen-Ta Tsai",

year = "2009",

month = aug,

day = "31",

language = "English",

journal = "NACE - International Corrosion Conference Series",

issn = "0361-4409",

publisher = "National Association of Corrosion Engineers",

note = "Corrosion 2009 ; Conference date: 22-03-2009 Through 26-03-2009",

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TY - JOUR

T1 - Selective dissolution of Ti-6AI-4V titanium alloy in mixed HCI + H 2SO4 solution

AU - Chih, Chiu Yen

AU - Chen, Jhen Rong

AU - Tsai, Wen-Ta

PY - 2009/8/31

Y1 - 2009/8/31

N2 - The effect of microstructure on the corrosion behavior of Ti-6Al-4V titanium alloy was investigated. Solution annealing at 1066 oC for 1 h followed by cooling at different rate was applied. The microstructure as well as the chemical composition changes after heat treatment was analyzed by scanning electron microscopy(SEM) and energy dispersive spectroscopy(EDS). Dual phase(α+β) microstructure was obtained for the solution annealed alloy either cooled in air or in furnace, while martensite was obtained if it was water-quenched. The stability of passive film formed in air or in 1 M HCl + 0.5 M H2SO4 mixed solution was investigated by conducting potential decay measurement and Auger electron spectroscopy(AES). At open circuit potential, selective dissolution of vanadium-depleted a phase in 1 M HCl + 0.5 M H2SO4 mixed solution was found.

AB - The effect of microstructure on the corrosion behavior of Ti-6Al-4V titanium alloy was investigated. Solution annealing at 1066 oC for 1 h followed by cooling at different rate was applied. The microstructure as well as the chemical composition changes after heat treatment was analyzed by scanning electron microscopy(SEM) and energy dispersive spectroscopy(EDS). Dual phase(α+β) microstructure was obtained for the solution annealed alloy either cooled in air or in furnace, while martensite was obtained if it was water-quenched. The stability of passive film formed in air or in 1 M HCl + 0.5 M H2SO4 mixed solution was investigated by conducting potential decay measurement and Auger electron spectroscopy(AES). At open circuit potential, selective dissolution of vanadium-depleted a phase in 1 M HCl + 0.5 M H2SO4 mixed solution was found.

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M3 - Conference article

AN - SCOPUS:69249118280

JO - NACE - International Corrosion Conference Series

JF - NACE - International Corrosion Conference Series

SN - 0361-4409

T2 - Corrosion 2009

Y2 - 22 March 2009 through 26 March 2009

ER -

Selective dissolution of Ti-6AI-4V titanium alloy in mixed HCI + H ₂SO₄ solution

Abstract

All Science Journal Classification (ASJC) codes

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