Addition of cerium and yttrium to ferritic steel weld metal to improve hydrogen trapping efficiency

Sung Jin Kim; Kang Mook Ryu; Min-suk Oh

doi:10.1007/s12613-017-1422-5

Volume 24 Issue 4

Apr. 2017

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文章导航 > 矿物冶金与材料学报（英文） > 2017 > 24(4): 415-422

Sung Jin Kim, Kang Mook Ryu, and Min-suk Oh, Addition of cerium and yttrium to ferritic steel weld metal to improve hydrogen trapping efficiency, Int. J. Miner. Metall. Mater., 24(2017), No. 4, pp. 415-422. https://doi.org/10.1007/s12613-017-1422-5

Cite this article as:

Sung Jin Kim, Kang Mook Ryu, and Min-suk Oh, Addition of cerium and yttrium to ferritic steel weld metal to improve hydrogen trapping efficiency, Int. J. Miner. Metall. Mater., 24(2017), No. 4, pp. 415-422. https://doi.org/10.1007/s12613-017-1422-5

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研究论文

Addition of cerium and yttrium to ferritic steel weld metal to improve hydrogen trapping efficiency

Department of Advanced Materials Engineering, Sunchon National University, Jungang-ro, Suncheon 540-742, Republic of Korea
POSCO Steel Solution Marketing Division, Geidong-Dong, Pohang 790-704, Republic of Korea
Automotive Components & Materials R&D Group, Korea Institute of Industrial Technology, 6 Cheomdan-gwagiro 208 beon-gil, Gwangju 61012, Republic of Korea

通讯作者:
Sung Jin Kim E-mail: sjkim56@sunchon.ac.kr

Min-suk Oh E-mail: misoh@kitech.re.kr

中文摘要

The applicability of Ce and Y as promising candidate elements to form irreversible traps in weld metal was investigated by thermal desorption spectroscopy (TDS) with gas chromatography (GC).The precise nature of the precipitate particles newly formed in the weld metal by the addition of Ce and Y to a certain alloy system was characterized.Moreover,the hydrogen trapping efficiency expressed as the reduction of the diffusible hydrogen in the weld metal was analyzed.The results showed that the addition of Ce and/or Y to this alloy system led to the formation of a mixed type of (Ce,Ti)-based oxide,(Y,Ni)-based carbide,or (Ce,Y,Ti)-based oxide particles.Because of the high activation energy of the mixed type of particles (≥ 150 kJ/mol),the trapping efficiency for hydrogen was considered to be sufficiently high to effectively reduce the diffusible hydrogen content.

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Research Article

Addition of cerium and yttrium to ferritic steel weld metal to improve hydrogen trapping efficiency

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Abstract

Abstract

The applicability of Ce and Y as promising candidate elements to form irreversible traps in weld metal was investigated by thermal desorption spectroscopy (TDS) with gas chromatography (GC).The precise nature of the precipitate particles newly formed in the weld metal by the addition of Ce and Y to a certain alloy system was characterized.Moreover,the hydrogen trapping efficiency expressed as the reduction of the diffusible hydrogen in the weld metal was analyzed.The results showed that the addition of Ce and/or Y to this alloy system led to the formation of a mixed type of (Ce,Ti)-based oxide,(Y,Ni)-based carbide,or (Ce,Y,Ti)-based oxide particles.Because of the high activation energy of the mixed type of particles (≥ 150 kJ/mol),the trapping efficiency for hydrogen was considered to be sufficiently high to effectively reduce the diffusible hydrogen content.
- hydrogen trapping;
- weld;
- rare earth metals;
- cerium;
- yttrium;
- activation energy

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Addition of cerium and yttrium to ferritic steel weld metal to improve hydrogen trapping efficiency

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Addition of cerium and yttrium to ferritic steel weld metal to improve hydrogen trapping efficiency

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