Relation Between Microstructure and Hydrogen: Consequence on the Fatigue Behavior of Laser Beam Melting Inconel 718


In the aerospace field, some components of rocket engines are solicited under “hydrogen atmosphere”. Under these conditions, the risk of hydrogen embrittlement of these components may be significant. We focused this work on the influence of hydrogen on mechanical behaviors of a nickel-based alloy obtained by Laser Beam Melting. For that, we characterized the microstructure of this material at different scales, and then, we performed several fatigue tests under a hydrogen pressure at room temperature. The obtained results show a reduction of the number of cycles to failure in the presence of hydrogen. This situation is discussed in regard of the interaction between hydrogen and plasticity.

Microstructural Analysis
Mechanical Behavior Under H2 Pressure

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In