Community Research and Development Information Service - CORDIS

Abstract

Hydrogen in steel is responsible for surface and internal defects and can negatively affect mechanical features even at low concentrations. Thus, hydrogen must be strictly controlled, especially in particular applications such as large forging, rails, pipes and some HSLA applications. Owing to its high diffusivity in solid steel, hydrogen is not easy to detect, as samples must be kept at very low temperatures to avoid loss of hydrogen before the detection process. This research work has investigated the possibility to predict hydrogen content in solid steel by means of a mathematical model and through flux measurements performed on as-cast products by an innovative device based on a hot wire catalytic sensor. The methodology could become an interesting tool in controlling and optimising the treatments for hydrogen removal in steelmaking to match hydrogen specifications.

Additional information

Authors: FERA S, ILVA, Genova (IT);OSTA A, ILVA, Genova (IT);MAVROMMATIS K, RWTH, Aachen (DE);HERNANDEZ RAMIREZ A, RWTH, Aachen (DE);IDOYAGA Z, Sidenor, Basauri (ES);ALBARRAN J, Sidenor, Basauri (ES);MOLINERO J, Sidenor, Basauri (ES);VALLEGGI R, SM Scienza Machinale, Pisa (IT);SORMANN A, Voesalpine, Leoben-Donawitz (AT)
Bibliographic Reference: EUR 22435 EN (2007), 133 pp. Euro: 25
Availability: Katalogue Number: KI-NA-22435-EN-S The paper version can be ordered online and the PDF version downloaded at: http://bookshop.europa.eu
ISBN: ISBN: 978-92-79-04604-9
Record Number: 200719239 / Last updated on: 2007-07-05
Category: PUBLICATION
Original language: en
Available languages: en