Internal Friction Measurements for the Analysis of Hydrogen in Steel Parts
Author | : S. H. A. Begemann |
Publisher | : |
Total Pages | : 24 |
Release | : 1968 |
ISBN-10 | : OCLC:227495679 |
ISBN-13 | : |
Rating | : 4/5 ( Downloads) |
Download or read book Internal Friction Measurements for the Analysis of Hydrogen in Steel Parts written by S. H. A. Begemann and published by . This book was released on 1968 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Damping versus temperature curves were determined, by means of a torsion pendulum internal friction apparatus, for hydrogen charged cold drawn 4340 steel wire. A relaxation peak, identified as the Hydrogen Cold-Work Peak, was found in the curves between -90C and -70C. A plot of this relaxation peak height versus charging time shows a linear relationship over only a limited range. The low hydrogen concentration levels that can cause hydrogen embrittlement were found to be below the limits of accurate detection by internal friction methods. (Author).