Effects of cold working on corrosion resistance of Co-modified Ni-16Cr-15Mo alloy in hydrofluoric acid solution

Yuhang Hou; Yunping Li; Chen Zhang; Yuichiro Koizumi; Akihiko Chiba

doi:10.1016/j.corsci.2014.09.004

Effects of cold working on corrosion resistance of Co-modified Ni-16Cr-15Mo alloy in hydrofluoric acid solution

Yuhang Hou, Yunping Li, Chen Zhang, Yuichiro Koizumi, Akihiko Chiba

New Industry Creation Hatchery Center (NICHe)

Tohoku University

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

31 Citations (Scopus)

Abstract

We examined the effects of cold working on the corrosion resistances of Ni-30Co-16Cr-15Mo and Ni-16Cr-15Mo in 5.2. M HF acid solution at 100. °C. After cold working, the Ni-30Co-16Cr-15Mo samples exhibited a more significant increase in hardness compared to Ni-16Cr-15Mo as well as a more localised microstructure that contained a greater number of planar slipping bands and mechanical twinning. Both alloys exhibited a decrease in corrosion resistance, with the decrease being much greater in the case of Ni-30Co-16Cr-15Mo. The difference in the corrosion resistances of the alloys was ascribable to the differences in their microstructures.

Original language	English
Pages (from-to)	258-267
Number of pages	10
Journal	Corrosion Science
Volume	89
Issue number	C
DOIs	https://doi.org/10.1016/j.corsci.2014.09.004
Publication status	Published - 2014

Keywords

A. Acid solutions
A. Alloys
A. Cobalt
A. Nickel
C. Acid corrosion
C. Interfaces

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10.1016/j.corsci.2014.09.004

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title = "Effects of cold working on corrosion resistance of Co-modified Ni-16Cr-15Mo alloy in hydrofluoric acid solution",

abstract = "We examined the effects of cold working on the corrosion resistances of Ni-30Co-16Cr-15Mo and Ni-16Cr-15Mo in 5.2. M HF acid solution at 100. °C. After cold working, the Ni-30Co-16Cr-15Mo samples exhibited a more significant increase in hardness compared to Ni-16Cr-15Mo as well as a more localised microstructure that contained a greater number of planar slipping bands and mechanical twinning. Both alloys exhibited a decrease in corrosion resistance, with the decrease being much greater in the case of Ni-30Co-16Cr-15Mo. The difference in the corrosion resistances of the alloys was ascribable to the differences in their microstructures.",

keywords = "A. Acid solutions, A. Alloys, A. Cobalt, A. Nickel, C. Acid corrosion, C. Interfaces",

author = "Yuhang Hou and Yunping Li and Chen Zhang and Yuichiro Koizumi and Akihiko Chiba",

note = "Funding Information: This research was mainly supported by a Regional Innovation Cluster Program 2010 of the Ministry of Education, Culture, Sports, Science and Technology of Japan. Publisher Copyright: {\textcopyright} 2014 Published by Elsevier Ltd.",

year = "2014",

doi = "10.1016/j.corsci.2014.09.004",

language = "English",

volume = "89",

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T1 - Effects of cold working on corrosion resistance of Co-modified Ni-16Cr-15Mo alloy in hydrofluoric acid solution

AU - Hou, Yuhang

AU - Li, Yunping

AU - Zhang, Chen

AU - Koizumi, Yuichiro

AU - Chiba, Akihiko

N1 - Funding Information: This research was mainly supported by a Regional Innovation Cluster Program 2010 of the Ministry of Education, Culture, Sports, Science and Technology of Japan. Publisher Copyright: © 2014 Published by Elsevier Ltd.

PY - 2014

Y1 - 2014

N2 - We examined the effects of cold working on the corrosion resistances of Ni-30Co-16Cr-15Mo and Ni-16Cr-15Mo in 5.2. M HF acid solution at 100. °C. After cold working, the Ni-30Co-16Cr-15Mo samples exhibited a more significant increase in hardness compared to Ni-16Cr-15Mo as well as a more localised microstructure that contained a greater number of planar slipping bands and mechanical twinning. Both alloys exhibited a decrease in corrosion resistance, with the decrease being much greater in the case of Ni-30Co-16Cr-15Mo. The difference in the corrosion resistances of the alloys was ascribable to the differences in their microstructures.

AB - We examined the effects of cold working on the corrosion resistances of Ni-30Co-16Cr-15Mo and Ni-16Cr-15Mo in 5.2. M HF acid solution at 100. °C. After cold working, the Ni-30Co-16Cr-15Mo samples exhibited a more significant increase in hardness compared to Ni-16Cr-15Mo as well as a more localised microstructure that contained a greater number of planar slipping bands and mechanical twinning. Both alloys exhibited a decrease in corrosion resistance, with the decrease being much greater in the case of Ni-30Co-16Cr-15Mo. The difference in the corrosion resistances of the alloys was ascribable to the differences in their microstructures.

KW - A. Acid solutions

KW - A. Alloys

KW - A. Cobalt

KW - A. Nickel

KW - C. Acid corrosion

KW - C. Interfaces

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DO - 10.1016/j.corsci.2014.09.004

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JO - Corrosion Science

JF - Corrosion Science

IS - C

ER -

Effects of cold working on corrosion resistance of Co-modified Ni-16Cr-15Mo alloy in hydrofluoric acid solution

Abstract

Keywords

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