An internal friction peak caused by hydrogen in maraging steel

Journal Article · Mon Jan 01 00:00:00 EST 1996 · Scripta Materialia

DOI:https://doi.org/10.1016/1359-6462(95)00482-3· OSTI ID:186775

Usui, Makoto ^[1]; Asano, Shigeru ^[2]

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1. Aichi Steel Works, Ltd., Tokai (Japan)
2. Nagoya Inst. of Tech. (Japan)

Internal friction in hydrogen-charged iron and steel has so far been studied by a large number of investigators. For pure iron, a well-defined peak of internal friction has been observed under the cold-worked and hydrogen-charged conditions. This is called the hydrogen cold-work peak, or the Snoek-Koester relaxation, which originates from the hydrogen-dislocation interaction. In the present study, a high-strength maraging steel (Fe-18Ni-9Co-5Mo) was chosen as another high-alloy steel which is known to be very susceptible to hydrogen embrittlement. The purpose of this paper is to show a new internal friction peak caused by hydrogen in the maraging steel and to compare it with those found in stainless steels which have so far been studied as typical engineering high-alloy materials.

• OSTI ID: 186775
• Journal Information: Scripta Materialia, Vol. 34, Issue 1; Other Information: PBD: 1 Jan 1996
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
IRON BASE ALLOYS
INTERNAL FRICTION
NICKEL ALLOYS
COBALT ALLOYS
MOLYBDENUM ALLOYS
INTERMETALLIC COMPOUNDS
CHEMICAL COMPOSITION
HYDROGEN
DISLOCATIONS
ACTIVATION ENERGY
DIFFUSION
BINDING ENERGY
CRYSTAL LATTICES
CORRELATIONS