Effect of ammonia impurity on hydrogen embrittlement of scm440 low-alloy steel in hydrogen gas

Zhang Nan; Ryosuke Komoda; Kazuki Yamada; Cynthia A. Volkert; Lin Tian; Reiner Kirchheim; Petros Sofronis; S. Hosseinisarani Zahra; Mohsen Dadfarnia; Masanobu Kubota; Aleksandar Staykov

Effect of ammonia impurity on hydrogen embrittlement of scm440 low-alloy steel in hydrogen gas

Zhang Nan, Ryosuke Komoda, Kazuki Yamada, Cynthia A. Volkert, Lin Tian, Reiner Kirchheim, Petros Sofronis, S. Hosseinisarani Zahra, Mohsen Dadfarnia, Masanobu Kubota, Aleksandar Staykov

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

Ammonia (NH3) was added to hydrogen gas as an impurity, then hydrogen embrittlement (HE) of the SCM440 low-alloy steel was investigated by fracture toughness tests. NH3 showed inhibition of the HE when the loading rate was relatively high. However, the inhibitory effect decreased with the decrease in the loading rate, as well as with an increase in the gas pressure. It was found that NH3 acted as both an inhibitor of the HE and a cause of the HE depending on the loading rate and gas pressure.

Original language	English
Title of host publication	30th International Ocean and Polar Engineering Conference
Publisher	International Society of Offshore and Polar Engineers
Pages	3030-3035
Number of pages	6
ISBN (Electronic)	9781880653845
Publication status	Published - 2020
Event	30th International Ocean and Polar Engineering Conference, ISOPE 2020 - Virtual, Online Duration: Oct 11 2020 → Oct 16 2020

Publication series

Name	Proceedings of the International Offshore and Polar Engineering Conference
Volume	2020-October
ISSN (Print)	1098-6189
ISSN (Electronic)	1555-1792

Conference

Conference	30th International Ocean and Polar Engineering Conference, ISOPE 2020
City	Virtual, Online
Period	10/11/20 → 10/16/20

All Science Journal Classification (ASJC) codes

Energy Engineering and Power Technology
Ocean Engineering
Mechanical Engineering

Cite this

Nan, Z., Komoda, R., Yamada, K., Volkert, C. A., Tian, L., Kirchheim, R., Sofronis, P., Hosseinisarani Zahra, S., Dadfarnia, M., Kubota, M., & Staykov, A. (2020). Effect of ammonia impurity on hydrogen embrittlement of scm440 low-alloy steel in hydrogen gas. In 30th International Ocean and Polar Engineering Conference (pp. 3030-3035). (Proceedings of the International Offshore and Polar Engineering Conference; Vol. 2020-October). International Society of Offshore and Polar Engineers.

Effect of ammonia impurity on hydrogen embrittlement of scm440 low-alloy steel in hydrogen gas. / Nan, Zhang; Komoda, Ryosuke; Yamada, Kazuki et al.

30th International Ocean and Polar Engineering Conference. International Society of Offshore and Polar Engineers, 2020. p. 3030-3035 (Proceedings of the International Offshore and Polar Engineering Conference; Vol. 2020-October).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Nan, Z, Komoda, R, Yamada, K, Volkert, CA, Tian, L, Kirchheim, R, Sofronis, P, Hosseinisarani Zahra, S, Dadfarnia, M, Kubota, M & Staykov, A 2020, Effect of ammonia impurity on hydrogen embrittlement of scm440 low-alloy steel in hydrogen gas. in 30th International Ocean and Polar Engineering Conference. Proceedings of the International Offshore and Polar Engineering Conference, vol. 2020-October, International Society of Offshore and Polar Engineers, pp. 3030-3035, 30th International Ocean and Polar Engineering Conference, ISOPE 2020, Virtual, Online, 10/11/20.

Nan Z, Komoda R, Yamada K, Volkert CA, Tian L, Kirchheim R et al. Effect of ammonia impurity on hydrogen embrittlement of scm440 low-alloy steel in hydrogen gas. In 30th International Ocean and Polar Engineering Conference. International Society of Offshore and Polar Engineers. 2020. p. 3030-3035. (Proceedings of the International Offshore and Polar Engineering Conference).

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title = "Effect of ammonia impurity on hydrogen embrittlement of scm440 low-alloy steel in hydrogen gas",

abstract = "Ammonia (NH3) was added to hydrogen gas as an impurity, then hydrogen embrittlement (HE) of the SCM440 low-alloy steel was investigated by fracture toughness tests. NH3 showed inhibition of the HE when the loading rate was relatively high. However, the inhibitory effect decreased with the decrease in the loading rate, as well as with an increase in the gas pressure. It was found that NH3 acted as both an inhibitor of the HE and a cause of the HE depending on the loading rate and gas pressure.",

author = "Zhang Nan and Ryosuke Komoda and Kazuki Yamada and Volkert, {Cynthia A.} and Lin Tian and Reiner Kirchheim and Petros Sofronis and {Hosseinisarani Zahra}, S. and Mohsen Dadfarnia and Masanobu Kubota and Aleksandar Staykov",

note = "Funding Information: This study was supported by the World Premier International Research Center Initiative (WPI), MEXT, Japan. The International Institute for Carbon-Neutral Energy Research (WPI-I2CNER) is supported by the World Premier International Research Center Initiative (WPI), MEXT, Japan.; 30th International Ocean and Polar Engineering Conference, ISOPE 2020 ; Conference date: 11-10-2020 Through 16-10-2020",

year = "2020",

language = "English",

series = "Proceedings of the International Offshore and Polar Engineering Conference",

publisher = "International Society of Offshore and Polar Engineers",

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T1 - Effect of ammonia impurity on hydrogen embrittlement of scm440 low-alloy steel in hydrogen gas

AU - Nan, Zhang

AU - Komoda, Ryosuke

AU - Yamada, Kazuki

AU - Volkert, Cynthia A.

AU - Tian, Lin

AU - Kirchheim, Reiner

AU - Sofronis, Petros

AU - Hosseinisarani Zahra, S.

AU - Dadfarnia, Mohsen

AU - Kubota, Masanobu

AU - Staykov, Aleksandar

N1 - Funding Information: This study was supported by the World Premier International Research Center Initiative (WPI), MEXT, Japan. The International Institute for Carbon-Neutral Energy Research (WPI-I2CNER) is supported by the World Premier International Research Center Initiative (WPI), MEXT, Japan.

PY - 2020

Y1 - 2020

N2 - Ammonia (NH3) was added to hydrogen gas as an impurity, then hydrogen embrittlement (HE) of the SCM440 low-alloy steel was investigated by fracture toughness tests. NH3 showed inhibition of the HE when the loading rate was relatively high. However, the inhibitory effect decreased with the decrease in the loading rate, as well as with an increase in the gas pressure. It was found that NH3 acted as both an inhibitor of the HE and a cause of the HE depending on the loading rate and gas pressure.

AB - Ammonia (NH3) was added to hydrogen gas as an impurity, then hydrogen embrittlement (HE) of the SCM440 low-alloy steel was investigated by fracture toughness tests. NH3 showed inhibition of the HE when the loading rate was relatively high. However, the inhibitory effect decreased with the decrease in the loading rate, as well as with an increase in the gas pressure. It was found that NH3 acted as both an inhibitor of the HE and a cause of the HE depending on the loading rate and gas pressure.

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M3 - Conference contribution

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T3 - Proceedings of the International Offshore and Polar Engineering Conference

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BT - 30th International Ocean and Polar Engineering Conference

PB - International Society of Offshore and Polar Engineers

T2 - 30th International Ocean and Polar Engineering Conference, ISOPE 2020

Y2 - 11 October 2020 through 16 October 2020

ER -

Effect of ammonia impurity on hydrogen embrittlement of scm440 low-alloy steel in hydrogen gas

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