Hydrogen permeation and diffusion in a 0. 2C-13Cr martensitic stainless steel

Journal Article · Fri Oct 01 04:00:00 EDT 1993 · Scripta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-716X(93)90383-4· OSTI ID:6254573

Xu, J; Sun, X K ^[1]; Yuan, X Z; Wei, B M ^[2]

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1. Inst. of Metal Research, Shenyang (China). State Key Lab. of RSA
2. Nanjing Inst. of Chemical Technology (China). Dept. of Applied Chemistry

The phenomenon of hydrogen embrittlement for engineering alloys, especially for alloy steels, has long attracted the attention of material researchers. Presently, it is thought that the occurrence of the phenomenon correlates with the processes of hydrogen entry and transport in metals. Therefore, a great effort has been made to understand the hydrogen permeation and diffusion in metals and alloys. Even so, the knowledge of the hydrogen permeation and diffusion in steels with a martensitic structure is still limited. In most of the investigations performed on martensite, the electrochemical permeation technique was employed for measurement; hence, only limited data near ambient temperature have been determined. A few results obtained at higher temperature are very scattered also. For instance, the hydrogen diffusivity of AISI 4130 steel in the quenched and tempered (martensite) condition is 2 orders of magnitude higher than of cryoformed 301 stainless steel (containing 90% of [alpha][prime] martensite). In the present work, the hydrogen permeability and diffusivity of a 0.2C-13Cr martensitic stainless steel (2Cr13), roughly corresponding to AISI 420, was determined by means of the gaseous permeation technique. Measurements were made above ambient temperature.

• OSTI ID: 6254573
• Journal Information: Scripta Metallurgica et Materialia; (United States), Journal Name: Scripta Metallurgica et Materialia; (United States) Vol. 29:7; ISSN 0956-716X; ISSN SCRMEX
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
CARBON ADDITIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
DIFFUSION
ELEMENTS
EMBRITTLEMENT
HIGH ALLOY STEELS
HYDROGEN
HYDROGEN EMBRITTLEMENT
IRON ALLOYS
IRON BASE ALLOYS
MARTENSITE
NONMETALS
PERMEABILITY
STAINLESS STEELS
STEELS