Effect of Cleanliness on Hydrogen Tolerance in High-Strength Steel

Abstract

This work utilized a Design of Experiments (DoEs) approach to generate comparative data sets for the common test geometries across a range of load level, material strength, and hydrogen concentration. The design created an empirical predictive mathematical model for failure based on input conditions. The models have proven successful in qualitative and quantitative assessment of performance. Targeted models will be developed for prospective maintenance chemicals and coatings where implementation is currently hindered because of hydrogen concerns. These models will clearly show where the materials can be safely employed based on material strength and/or loading level in the application. Alleviation of hydrogen concerns for popular chemicals and coatings will lead to implementation at military depots and the commercial aerospace industry using new, more environmentally friendly solvents and coatings.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 2014
Accession Number
ADA600088

Entities

People

  • Franklyn Kellogg
  • Hoang C.B. Nguyen
  • Scott M. Grendahl

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Aerospace Industry
  • Coatings
  • Elements
  • Experimental Design
  • Ferrium
  • Geometry
  • Heat Treatment
  • Hydrogen
  • Hydrogen Embrittlement
  • Maintenance
  • Materials
  • Military Research
  • Models
  • Predictive Modeling
  • Steel
  • Tensile Strength
  • Test Methods

Readers

  • Computational Modeling and Simulation
  • Environmental Engineering.
  • Systems Analysis and Design

Technology Areas

  • Space