Details
| Original language | English |
|---|---|
| Article number | 3750 |
| Journal | MATERIALS |
| Volume | 13 |
| Issue number | 17 |
| Early online date | 25 Aug 2020 |
| Publication status | Published - Sept 2020 |
Abstract
The European standard ISO 3690 regulates the measurement of diffusible hydrogen in arc-welded metal. It was designed for different welding methods performed in dry atmosphere (20% humidity). Some details of the standard are not applicable for wet underwater welding. The objective of this study was to extend the applicability of DIN EN ISO 3690:2018-12 to underwater wet-shielded metal arc welding (SMAW). Four different aspects regulated within the standard were accounted for: (1) sample dimensions and number of samples taken simultaneously; (2) time limitations defined by the standard regarding the welding and the cleaning process; (3) time, temperature, and method defined for analysis of the diffusible hydrogen content; (4) normalization of the hydrogen concentration measured. Underwater wet welding was performed using an automated, arc voltage-controlled welding machine. The results are discussed in light of standard DIN EN ISO 3690, and recommendations are provided for the analysis of diffusible hydrogen content upon underwater wet welding.
Keywords
- AWS A4.3, Diffusible hydrogen, DIN EN ISO 3690, JIS Z 3113, SMAW, Underwater wet welding
ASJC Scopus subject areas
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In: MATERIALS, Vol. 13, No. 17, 3750, 09.2020.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - The applicability of the standard DIN EN ISO 3690 for the analysis of diffusible hydrogen content in underwater wet welding
AU - Klett, Jan
AU - Wolf, Thomas
AU - Maier, Hans Jürgen
AU - Hassel, Thomas
N1 - Funding information: The publication of this article was supported by the TIB Open Access Fund of the Leibniz Universität Hannover and Technische Informationsbibliothek (TIB).
PY - 2020/9
Y1 - 2020/9
N2 - The European standard ISO 3690 regulates the measurement of diffusible hydrogen in arc-welded metal. It was designed for different welding methods performed in dry atmosphere (20% humidity). Some details of the standard are not applicable for wet underwater welding. The objective of this study was to extend the applicability of DIN EN ISO 3690:2018-12 to underwater wet-shielded metal arc welding (SMAW). Four different aspects regulated within the standard were accounted for: (1) sample dimensions and number of samples taken simultaneously; (2) time limitations defined by the standard regarding the welding and the cleaning process; (3) time, temperature, and method defined for analysis of the diffusible hydrogen content; (4) normalization of the hydrogen concentration measured. Underwater wet welding was performed using an automated, arc voltage-controlled welding machine. The results are discussed in light of standard DIN EN ISO 3690, and recommendations are provided for the analysis of diffusible hydrogen content upon underwater wet welding.
AB - The European standard ISO 3690 regulates the measurement of diffusible hydrogen in arc-welded metal. It was designed for different welding methods performed in dry atmosphere (20% humidity). Some details of the standard are not applicable for wet underwater welding. The objective of this study was to extend the applicability of DIN EN ISO 3690:2018-12 to underwater wet-shielded metal arc welding (SMAW). Four different aspects regulated within the standard were accounted for: (1) sample dimensions and number of samples taken simultaneously; (2) time limitations defined by the standard regarding the welding and the cleaning process; (3) time, temperature, and method defined for analysis of the diffusible hydrogen content; (4) normalization of the hydrogen concentration measured. Underwater wet welding was performed using an automated, arc voltage-controlled welding machine. The results are discussed in light of standard DIN EN ISO 3690, and recommendations are provided for the analysis of diffusible hydrogen content upon underwater wet welding.
KW - AWS A4.3
KW - Diffusible hydrogen
KW - DIN EN ISO 3690
KW - JIS Z 3113
KW - SMAW
KW - Underwater wet welding
UR - http://www.scopus.com/inward/record.url?scp=85090501593&partnerID=8YFLogxK
U2 - 10.3390/MA13173750
DO - 10.3390/MA13173750
M3 - Article
AN - SCOPUS:85090501593
VL - 13
JO - MATERIALS
JF - MATERIALS
SN - 1996-1944
IS - 17
M1 - 3750
ER -