Hydrogen permeation characteristics of Incoloy 907 alloy

Journal Article · Sat May 15 00:00:00 EDT 1993 · Scripta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-716X(93)90463-3· OSTI ID:6519964

Xu, J; Sun, X K; Liu, Q Q; Zhao, X; Fan, C G ^[1]

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1. Inst. of Metal Research, Shenyang (China)

The problem of brittle fracture induced by hydrogen ingress from environment must be considered for some high-strength alloys, particularly for the superalloys strengthened by [gamma][prime] precipitation, used in fields such as aerospace and nuclear power. Therefore, a number of studies on hydrogen performance of superalloys have been recently carried out. The understanding of hydrogen transport characteristics in these alloys is important to clarify the hydrogen embrittlement mechanism. Although hydrogen permeabilities and diffusivities of some superalloys have been reported, the study of the hydrogen permeation and diffusion in Incoloy 907 alloy, a type of Fe-Ni-Co based superalloy, is still absent to date. In the present work, a gaseous permeation technique was employed to measure hydrogen permeability and diffusivity in this alloy, in order to understand the relationship between hydrogen permeation and microstructure.

• OSTI ID: 6519964
• Journal Information: Scripta Metallurgica et Materialia; (United States), Vol. 28:10; ISSN 0956-716X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COBALT ALLOYS
PERMEABILITY
HYDROGEN
DIFFUSION
INCOLOY ALLOYS
IRON ALLOYS
NICKEL ALLOYS
EXPERIMENTAL DATA
HEAT RESISTING ALLOYS
HEAT TREATMENTS
HYDROGEN EMBRITTLEMENT
MICROSTRUCTURE
TEMPERATURE RANGE 0400-1000 K
ALLOYS
CRYSTAL STRUCTURE
DATA
ELEMENTS
EMBRITTLEMENT
HEAT RESISTANT MATERIALS
INFORMATION
MATERIALS
NONMETALS
NUMERICAL DATA
TEMPERATURE RANGE
360104* - Metals & Alloys- Physical Properties