Method for diffusible hydrogen analysis in welding materials by gas chromatography
A new method was developed by gas chromatography for diffusible hydrogen analysis in E-7018 ordinary electrodes, using a packed column and nitrogen as reference and carrier gas. The method includes two thermal treatments to the weld pieces, before and after the welding process.
The quantitative analysis was made using the external standard method. The method is selective, and the linearity is adequate between 0-20 μL of hydrogen, with a dynamic range between 0,69-17,28 μL. The correlation coefficient higher than 0,99 in all cases indicate good correlation. The accuracy has a mean value of 99,46%. The detection and quantification limits have values adequate to our aims. There were found differences between both methods, glycerine and gas chromatography. The developed and proposed method can be used for routine analysis of hydrogen in welding materials using E-7018 electrodes.
Funderburk, Scott. “Selecting filler metals: low hydrogen”. En: Welding Innovation. Vol. 17, N.° 1. 2000.
American Welding Society. “Standard methods for determination of the Diffusible Hydrogen content of Martesinic, Bainitic and Ferritic Steel Weld Metal produced by arc welding”. 1993. p. 16.
UNE 14-614-83. “Determinación del Hidrógeno en metal aportado procedente de la utilización de electrodos revestidos en la soldadura de aceros suaves y de baja aleación”. En: Instituto Español de Normalización. 1983.
Grob, Robert. Modern Practice of Gas Chromatography. Wiley Interscience. New York. 3th Edition. 1995.
Schmid, María. “Gestión de Calidad III”. En: Noticias Técnicas del Laboratorio. N.° 4. 2001.
Schmid, María. “Gestión de Calidad II”. En: Noticias Técnicas del Laboratorio. N.° 2. 2001.
Copyright (c) 2004 Revista Facultad de Ingeniería Universidad de Antioquia
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Authors can archive the pre-print version (i.e., the version prior to peer review) and post-print version (that is, the final version after peer review and layout process) on their personal website, institutional repository and / or thematic repository
- Upon acceptance of an article, it will be published online through the page https://revistas.udea.edu.co/index.php/ingenieria/issue/archive in PDF version with its correspondent DOI identifier
The Revista Facultad de Ingeniería -redin- encourages the Political Constitution of Colombia, chapter IV
Chapter IV Sanctions 51
The following shall be liable to imprisonment for two to five years and a fine of five to 20 times the legal minimum monthly wage: (1) any person who publishes an unpublished literary or artistic work, or part thereof, by any means, without the express prior authorization of the owner of rights; (2) any person who enters in the National Register of Copyright a literary, scientific or artistic work in the name of a person other than the true author, or with its title altered or deleted, or with its text altered, deformed, amended or distorted, or with a false mention of the name of the publisher or phonogram, film, videogram or software producer; (3) any person who in any way or by any means reproduces, disposes of, condenses, mutilates or otherwise transforms a literary, scientific or artistic work without the express prior authorization of the owners thereof; (4) any person who reproduces phonograms, videograms, software or cinematographic works without the express prior authorization of the owner, or transports, stores, stocks, distributes, imports, sells, offers for sale, acquires for sale or distribution or in any way deals in such reproductions. Paragraph. If either the material embodiment or title page of or the introduction to the literary work, phonogram, videogram, software or cinematographic work uses the name, business style, logotype or distinctive mark of the lawful owner of rights, the foregoing sanctions shall be increased by up to half.