Accession Number : ADA141249

Title :   The Role of Traps in the Microstructural Control of Hydrogen Embrittlement of Steels.

Descriptive Note : Technical rept.,

Corporate Author : CARNEGIE MELLON UNIV PITTSBURGH PA DEPT OF METALLURGICAL ENGINEERING AND MATERIALS SCIENCE

Personal Author(s) : Bernstein,I M ; Pressouyre,G M

PDF Url : ADA141249

Report Date : Apr 1984

Pagination or Media Count : 74

Abstract : Hydrogen can react with heterogeneities in the microstructure of ferrous alloys. These interactions create the necessary sub-steps for failure - crack or void initiation. The nature and type of interactions of hydrogen with the microstructure, combined with the concept of a critical hydrogen concentration for premature embrittlement are discussed. Development of hydrogen resistant steels is possible without compromising critical mechanical properties such as strength ductility, toughness in air and fatigue resistance. (Author)

Descriptors :   *Steel, *Iron alloys, *Hydrogen embrittlement, *Traps, *Cracks, *Failure(Mechanics), *Microstructure, Ductility, Toughness, Diffusion, Dislocations, Reaction kinetics, Strength(Mechanics), Mechanical properties, Equations, Coefficients, Steady state, Interactions

Subject Categories : Properties of Metals and Alloys
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE