The effect of hydrogen charging on the mechanical behaviour of α-brass

C. N. Panagopoulos, A. S. El-Amoush, K. G. Georgarakis

    Research output: Contribution to journalArticlepeer-review

    12 Citations (Scopus)

    Abstract

    The influence of hydrogen cathodic charging on the mechanical behaviour of α-brass was studied. The microhardness of the hydrogen charged α-brass surface layers was observed to increase significantly with increasing charging time for a constant value of current density of cathodic charging procedures, or with increasing current density for a constant value of charging time of the same electrolytic procedures. Hydrogen cathodic charging of α-brass was noted to reduce significantly the ductility and slightly the ultimate tensile strength (UTS) of this alloy. This reduction increased with increasing charging time, for a constant value of current density. The increase of charging time was also observed to provide a larger depth of the hydrogen charged surface layers of α-brass specimens.

    Original languageEnglish
    Pages (from-to)159-164
    Number of pages6
    JournalJournal of Alloys and Compounds
    Volume392
    Issue number1-2
    DOIs
    Publication statusPublished - 2005 Apr 19

    Keywords

    • α-Brass
    • Hydrogen embrittlement
    • Mechanical behaviour

    ASJC Scopus subject areas

    • Mechanics of Materials
    • Mechanical Engineering
    • Metals and Alloys
    • Materials Chemistry

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